No photo of this model in the library yet.

Have this bike? Send a photo or the manual's service chart

Big Bear Choppers · Pushrod four-stroke twin, dry sump, separate gearbox oil, chain drive

Miss Behavin (1639 cc)

Library entry covers 2009-2019

35 factory 48 guideline

Published source

Big Bear Chopper 2009 Owner's Manual, sections 3.1-3.8 Maintenance (ManualsHive pages 22-40)

Factory owner's handbook. Covers Big Bear Choppers 2009 owner's manual (all 2009 models).

83 items for a 2012 model, grouped by interval the way a factory chart is laid out.

How this bike is built (what the schedule is based on)

Engine cycle: Four-stroke
Engine lubrication: Dry sump (separate oil tank)
Oil filtration: Replaceable cartridge or spin-on filter
Valve gear: Overhead valve, pushrods, adjustable tappets
Ignition: Electronic (CDI / transistor / ECU)
Charging: Alternator / stator with rectifier
Battery: Wet cell (flooded lead-acid, needs topping up)
Fuel system: Fuel injection
Cooling: Air / oil cooled
Primary drive: Gear or chain inside engine, shares engine oil
Gearbox oil: Separate gearbox oil
Clutch control: Hand lever, cable
Final drive: Chain
Front suspension: Telescopic fork
Rear suspension: Swingarm, single shock / cantilever
Front brake: Disc, hydraulic
Rear brake: Disc, hydraulic
Wheels: Cast / alloy, tubeless
Sidecar: No sidecar

Maintenance schedule

2012 Big Bear Choppers Miss Behavin (1639 cc)

On the road: every 300 km

1 item

Check engine oil level

Pre-ride / on the road

Guideline

Each fuel stop on old machines. Dry sump: check the tank hot, engine idling or just stopped, per your manual.

On the road: every 500 km

3 items

Check lights, horn, brake light switches

Pre-ride / on the road

Guideline
Check tire pressures

Pre-ride / on the road

Guideline
Lubricate drive chain

Pre-ride / on the road

Guideline

Lube warm, ideally at the end of the riding day so it soaks in overnight. Sooner after rain.

On the road: every 1,000 km

1 item

Check chain slack and rear wheel alignment

Pre-ride / on the road

Guideline

Every 1,600 km or 6 months

1 item

Inspect tire tread, sidewalls and date codes

Wheels and tires

Guideline

Every 4,000 km

28 items

Change engine oil and filter

Engine

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service. Oil must be changed after the first 500 miles and thereafter at 2,500-mile intervals in normal service; shorter in cold weather. Filter replaced at every oil change
Check all operations of electrical equipment and switches

Engine

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service
Check engine idle speed adjustment

Engine

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service
Check torque of all fasteners except engine head bolts

Engine

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service
Inspect and/or replace spark plugs as needed

Engine

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service
Inspect air cleaner and service as required

Fuel and air

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service
Inspect fuel valve, lines and fittings for leaks

Fuel and air

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service
Inspect petcock fuel filter screen and service as required

Fuel and air

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service
Check ignition timing

Ignition and electrics

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. Listed from the 2,500 mi service on
Clean battery connections

Ignition and electrics

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. Battery connections cleaned and tightened every 2,500 miles
Change primary drive lubricant and clean magnetic drain plug (enclosed primary)

Primary and gearbox

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service
Change transmission lubricant and clean magnetic drain plug

Primary and gearbox

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service
Check and adjust the clutch

Primary and gearbox

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service
Check and lubricate throw-out bearing and clutch rod (RSD only)

Primary and gearbox

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service
Check and adjust final drive belt or chain for tension and wear

Final drive

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service
Check chain roller and tensioner condition if applies

Final drive

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service
Check primary compensating sprocket for proper torque and adjust chain if needed

Final drive

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service
Check condition of rear shock absorbers and front forks

Front end

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service
Check rear swing arm pivot nut for proper torque

Rear suspension and frame

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service
Inspect frame, swingarm, front and rear fenders for any cracks

Rear suspension and frame

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service
Lubricate side stand with anti-seize

Rear suspension and frame

Factory

Factory: Every 2,500 miles
Check rear brake pedal and front lever adjustment

Brakes

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service
Inspect brake fluid reservoir level and condition

Brakes

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service
Inspect brake pads and discs for wear

Brakes

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service
Inspect oil lines and brake system for leaks

Brakes

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service
Lubricate brake and clutch levers and throttle and clutch cables

Brakes

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service
Check tire pressure and inspect for wear and damage

Wheels and tires

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service
Inspect operation of throttle and enrichener controls

Controls and cables

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 500 mi service and every 2,500 mi service

Every 5,000 km or 12 months

9 items

Check throttle cable(s) free play and return

Fuel and air

Guideline
Clean drive chain thoroughly (remove and soak, re-lube)

Final drive

Guideline

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.
Inspect chain and sprockets for wear (measure stretch)

Final drive

Guideline
Check steering head bearing adjustment

Front end

Guideline
Inspect fork seals, stanchions and fork boots

Front end

Guideline
Check footrests, pegs, rear brake and gear lever pivots

Rear suspension and frame

Guideline
Grease and check center / side stand and springs

Rear suspension and frame

Guideline
Check brake pads and discs

Brakes

Guideline
Check wheel bearings for play

Wheels and tires

Guideline

Every 6,500 km or 12 months

2 items

Inspect, clean and gap spark plugs

Engine

Guideline
Adjust clutch free play, lubricate cable and lever pivot

Primary and gearbox

Guideline

Every 8,000 km or 12 months

4 items

Change engine oil

Engine

Guideline

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.
Replace oil filter

Engine

Guideline
Change front fork oil

Front end

Factory

Factory: Drain and refill the front forks every 5,000 miles or every year
Brake fluid level (check)

Brakes

Factory

Factory: Check brake fluid levels at least every 5,000 miles or annually (DOT 5); also inspected at every scheduled service

Every 8,000 km

1 item

Wheel alignment (check)

Wheels and tires

Factory

Factory: Every 5,000 miles and whenever the rear wheel is removed

Every 9,500 km or 12 months

6 items

Clean / inspect air filter

Fuel and air

Guideline

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

Ignition and electrics

Guideline
Check swingarm bushes for play

Rear suspension and frame

Guideline
Inspect rear shocks for leaks and damping

Rear suspension and frame

Guideline
Lubricate control cables and lever pivots

Controls and cables

Guideline
Lubricate speedometer / tachometer cables, check drive

Controls and cables

Guideline

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

Every 13,000 km or 2 years

1 item

Check and adjust valve clearances

Engine

Guideline

Every 16,000 km or 2 years

2 items

Compression test (or leak-down)

Engine

Guideline
Change gearbox oil

Primary and gearbox

Guideline

Every 16,000 km

2 items

Inspect, repack and adjust steering head bearings

Front end

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 10,000 mi service
Replace front and rear wheel bearings

Wheels and tires

Factory

Factory: Scheduled maintenance at 500 mi, then 2,500, 5,000, 7,500 and 10,000 mi; after the 10,000 mi service the 2,500 mi routine repeats. On the 10,000 mi service

Every 19,500 km or 2 years

4 items

Replace air filter element

Fuel and air

Guideline
Synchronize throttle bodies

Fuel and air

Guideline
Clean and grease rear suspension linkage

Rear suspension and frame

Guideline
Grease swingarm pivot

Rear suspension and frame

Guideline

Every 24,000 km or 3 years

1 item

Change fork oil

Front end

Guideline

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

Every 25,500 km or 4 years

1 item

Replace spark plugs

Engine

Guideline

Every 29,000 km

1 item

Replace chain and sprockets (wear based)

Final drive

Guideline

Every 32,000 km or 4 years

2 items

Repack / replace steering head bearings

Front end

Guideline

Many old machines use loose balls in cups and cones. Taper roller conversions are common.
Repack / replace wheel bearings

Wheels and tires

Guideline

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

Every 38,500 km or 4 years

1 item

Replace fuel filter

Fuel and air

Guideline

Every 40,000 km or 6 years

1 item

Replace swingarm bushes / bearings

Rear suspension and frame

Guideline

Every 48,500 km or 6 years

1 item

Rebuild forks: seals, bushes, springs

Front end

Guideline

Every 1 month

1 item

Transmission lubricant level (check)

Primary and gearbox

Factory

Factory: Check monthly

Every 6 months

1 item

Clean battery terminals, check charge and strap

Ignition and electrics

Guideline

Every 2 years

3 items

Inspect wiring, bullet connectors and ground points

Ignition and electrics

Guideline
Inspect frame, welds and lugs for cracks

Rear suspension and frame

Guideline
Replace brake fluid

Brakes

Guideline

Every 4 years

3 items

Replace fuel lines

Fuel and air

Guideline

Old rubber and modern ethanol fuel do not mix well.
Inspect brake hoses; replace old rubber

Brakes

Guideline
Rebuild calipers and master cylinders (seals)

Brakes

Guideline

Every 6 years

1 item

Replace tires on age (regardless of tread)

Wheels and tires

Guideline

No interval set

1 item

Tire pressure and condition (check)

Wheels and tires

Factory

Factory: Before each ride, tires cold (40 psi front, 42 psi rear)

Guideline lines: Intervals here are general guidelines for the machine's era and layout, compiled for this app. They are not factory manual figures. Check your workshop manual, and edit any interval in the bike's Schedule tab.