SE 250

Non O-ring chains on old machines: remove, clean, soak in hot chain grease or lube, refit with the master link clip closed end leading.

Pre-1970 machines: many owners run non-detergent or classic-spec oil with no filter, so short intervals matter. Dry sump: drain the tank and the crankcase/sump, flush the tank and clean the feed and return screens.

Mesh or oiled foam: clean and re-oil. Paper: blow out or replace. Some very early machines have no filter at all.

A dry speedo cable whips the needle and eventually kills the instrument.

Some early telescopic forks are grease filled or use very small oil quantities. Check your manual.

Many old machines use loose balls in cups and cones. Taper roller conversions are common.

Cup-and-cone and taper roller hubs need periodic repacking and adjustment.

Factory: Maintenance schedule (p.143): marked after 5 hours only. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Maintenance schedule (p.143): marked after 5 hours and every 20 hours. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Maintenance schedule (p.143): marked after 5 hours and every 20 hours. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Maintenance schedule (p.143): marked after 5 hours and every 20 hours. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Maintenance schedule (p.143): marked after 5 hours and every 20 hours. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Maintenance schedule (p.143): marked after 5 hours and every 20 hours. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Important checks and maintenance work to be carried out by a Sherco workshop (p.145): recreational use at 20 h, 80 h; competition use at 10 h, 40 h, 80 h. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Maintenance schedule (p.143): marked every 20 hours (not after 5 hours). Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Maintenance schedule (p.143): marked after 5 hours and every 20 hours. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Important checks and maintenance work to be carried out by a Sherco workshop (p.145): recreational use at 20 h, 40 h, 80 h; competition use at 10 h, 20 h, 40 h, 80 h. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Maintenance schedule (p.143): marked after 5 hours and every 20 hours. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Maintenance schedule (p.143): marked every 20 hours (not after 5 hours). Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Maintenance schedule (p.143): marked after 5 hours and every 20 hours. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Maintenance schedule (p.143): marked after 5 hours and every 20 hours. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Maintenance schedule (p.143): marked after 5 hours and every 20 hours. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Maintenance schedule (p.143): marked after 5 hours and every 20 hours. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Maintenance schedule (p.143): marked after 5 hours and every 20 hours. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Maintenance schedule (p.143): marked after 5 hours and every 20 hours. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Maintenance schedule (p.143): marked after 5 hours and every 20 hours. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Maintenance schedule (p.143): marked after 5 hours and every 20 hours. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Maintenance schedule (p.143): marked after 5 hours and every 20 hours. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Maintenance schedule (p.143): marked after 5 hours and every 20 hours. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Maintenance schedule (p.143): marked every 20 hours (not after 5 hours). Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Maintenance schedule (p.143): marked after 5 hours and every 20 hours. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Maintenance schedule (p.143): marked after 5 hours and every 20 hours. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Maintenance schedule (p.143): marked after 5 hours and every 20 hours. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Important checks and maintenance work to be carried out by a Sherco workshop (p.145): recreational use at 40 h, 80 h; competition use at 20 h, 40 h, 80 h. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Important checks and maintenance work to be carried out by a Sherco workshop (p.145): recreational use at 40 h, 80 h; competition use at 20 h, 40 h, 80 h. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Maintenance schedule (p.143): row printed as "Replace spark plug (after 50 hours)", with no marks in the 5-hour or 20-hour columns. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Important checks and maintenance work to be carried out by a Sherco workshop (p.145): recreational use at 80 h; competition use at 40 h, 80 h. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Important checks and maintenance work to be carried out by a Sherco workshop (p.145): recreational use at 80 h; competition use at 40 h, 80 h. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Important checks and maintenance work to be carried out by a Sherco workshop (p.145): recreational use at 80 h; competition use at 40 h, 80 h. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Important checks and maintenance work to be carried out by a Sherco workshop (p.145): recreational use at 80 h; competition use at 40 h, 80 h. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Important checks and maintenance work to be carried out by a Sherco workshop (p.145): recreational use at 80 h; competition use at 40 h, 80 h. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Important checks and maintenance work to be carried out by a Sherco workshop (p.145): recreational use at 80 h; competition use at 40 h, 80 h. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Important checks and maintenance work to be carried out by a Sherco workshop (p.145): recreational use at 80 h; competition use at 40 h, 80 h. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Important checks and maintenance work to be carried out by a Sherco workshop (p.145): recreational use at 80 h; competition use at 40 h, 80 h. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Important checks and maintenance work to be carried out by a Sherco workshop (p.145): recreational use at 80 h; competition use at 40 h, 80 h. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Important checks and maintenance work to be carried out by a Sherco workshop (p.145): recreational use at 80 h; competition use at 40 h, 80 h. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Important checks and maintenance work to be carried out by a Sherco workshop (p.145): recreational use at 80 h; competition use at 40 h, 80 h. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Annual maintenance (p.144), major maintenance items that should be performed by the dealer: at least once a year (column printed "Au moins 1X par an"). Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Annual maintenance (p.144), major maintenance items that should be performed by the dealer: at least once a year (column printed "Au moins 1X par an"). Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Annual maintenance (p.144), major maintenance items that should be performed by the dealer: at least once a year (column printed "Au moins 1X par an"). Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Annual maintenance (p.144), major maintenance items that should be performed by the dealer: at least once a year (column printed "Au moins 1X par an"). Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Annual maintenance (p.144), major maintenance items that should be performed by the dealer: at least once a year (column printed "Au moins 1X par an"). Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Annual maintenance (p.144), major maintenance items that should be performed by the dealer: at least once a year (column printed "Au moins 1X par an"). Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Annual maintenance (p.144), major maintenance items that should be performed by the dealer: at least once a year (column printed "Au moins 1X par an"). Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Old rubber and modern ethanol fuel do not mix well.

Factory: Annual maintenance (p.144), checks and major maintenance to be performed by the rider: before each use. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Annual maintenance (p.144), checks and major maintenance to be performed by the rider: before each use. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Annual maintenance (p.144), checks and major maintenance to be performed by the rider: after each use. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Annual maintenance (p.144), checks and major maintenance to be performed by the rider: after each use. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Annual maintenance (p.144), checks and major maintenance to be performed by the rider: before each use. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Annual maintenance (p.144), checks and major maintenance to be performed by the rider: before each use. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Annual maintenance (p.144), checks and major maintenance to be performed by the rider: before each use. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Annual maintenance (p.144), checks and major maintenance to be performed by the rider: after each use. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Annual maintenance (p.144), checks and major maintenance to be performed by the rider: after each use. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Annual maintenance (p.144), checks and major maintenance to be performed by the rider: after each use (printed "regularly"). Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Annual maintenance (p.144), checks and major maintenance to be performed by the rider: after each use (printed "regularly"). Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Annual maintenance (p.144), checks and major maintenance to be performed by the rider: before each use. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Annual maintenance (p.144), checks and major maintenance to be performed by the rider: before each use. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Annual maintenance (p.144), checks and major maintenance to be performed by the rider: before each use and after each use. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Annual maintenance (p.144), checks and major maintenance to be performed by the rider: after each use. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Annual maintenance (p.144), checks and major maintenance to be performed by the rider: before each use. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Annual maintenance (p.144), checks and major maintenance to be performed by the rider: before each use. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.

Factory: Annual maintenance (p.144), checks and major maintenance to be performed by the rider: after each use. Manual warning (p.144): check the tightening of the screws after the first ride/first hours of use; in competition perform the 20 hour maintenance schedule after each race, and it should not be exceeded by more than 2 hours; dealer services do not replace routine maintenance by the rider.