Yamaha TT-R225 Maintenance Schedule and Service Intervals

This is the maintenance schedule and associated service intervals for the Yamaha TT-R225.

The Yamaha TT-R225 is an enduro / off-road motorcycle that Yamaha made between 1999 and 2004.

The TT-R225 is powered by a single-cylinder 223 cc four-stroke air-cooled engine that’s fueled by a single 26 mm Teikei carburettor. The final drive is via a six-speed transmission and a chain.

Being a dirt bike, the Yamaha TT-R225 doesn’t have bits necessary to make it street legal, like mirrors or turn signals.

This post was originally published on July 21, 2020.

1999-2004 Yamaha TT-R225

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Service Intervals for the Yamaha TT-R225

Being an off-road motorcycle, the maintenance intervals for the Yamaha TT-R225 are somewhat aggressive. Change the engine oil every six months, and clean the oil filter/strainer at the same time.

You should also check the spark plug and the valve clearances at every service every 6 months. In fact, there’s very little on the maintenance schedule that Yamaha doesn’t recommend you do at EVERY 6-month service.

Also, make sure you keep the brake fluid fresh — updating it every 2 years.

Yamaha TT-R225 Maintenance Schedule

Below is the maintenance schedule for the Yamaha TT-R225.

Every x months612Or Every
Engine oil — Replace (Warm engine before draining).
Engine oil filter/Oil strainer — Clean
Spark plug — Check condition. Clean or replace if necessary
Valve — Check clearance. Adjust if necessary
Carburettor — Check idle speed/starter operation. Adjust if necessary
Fuel line — Check fuel hose for cracks or damage. Replace if necessary
Brakes — Check operation/fluid leakage. Correct if necessary
Brake fluid — Replace2 years
Brake hoses — Replace4 years
Clutch — Check operation. Adjust if necessary
Rear arm pivot — Check rear arm assembly for looseness. Tighten if necessary. Moderately repack
Wheels — Check balance, damage, runout and spoke tightness. Replace if necessary
Wheel bearings — Check bearing assemblies for looseness/damage. Replace if damaged
Steering bearings — Check bearing assemblies for looseness. Correct if necessary.Replace every 2 years
Front forks — Check operation/oil leakage. Repair if necessary
Rear shock absorber — Check operation/oil leakage. Repair if necessary
Fittings/Fasteners — Check all chassis fitting and fasteners. Correct if necessary
Nuts and bolts — Check all nuts and bolts. Re-tighten if necessary
Sidestand — Check operation. Lubricate / Repair if necessary
Yamaha TT-R225 maintenance schedule.

About the Yamaha TT-R225

Blue Yamaha TT-R225 RHS studio
Blue Yamaha TT-R225 RHS studio

The Yamaha TTR 225 is a dirt bike that was manufactured from 1999 to 2004 when it was replaced with the 2005+ Yamaha TT-R230.

The TT-R225 was well known for its excellent reliability. The 2000 model shares its mechanical specifications with all TT-R225 up to 2004 — save for a few minor cosmetic changes on the exterior.

The Yamaha TTR 225 is 81.5 inches in length, 32.3 inches wide, 45.3 inches high and has a 53.1-inch wheelbase, producing a dry weight of 260.1 lbs. It has a total fuel capacity of 2.64 gallons. The body material is made out of plastic, and is fitted with chassis protectors, exterior guards, fork guards, front and rear plastic fenders and skid plates.

The Yamaha TTR 225 has a single-cylinder, four-stroke, air-cooled engine in SOHC configuration with two valves per cylinder. A compression ratio of 9.5:1, coupled with a bore and stroke of 2.8 and 2.3 inches, producing a maximum torque of 13.1 foot-pounds at 6,500 rpm.

The engine is started with both an electric and kick-start mechanism. Fuel is delivered using a 40-mm Mikuni CV with a throttle position sensor. The motorcycle is equipped with a six-speed CDI manual transmission and has a chain-operated final drive.

The Yamaha TTR 225 is fitted with telescopic-fork suspension in the front and single-shock suspension in the rear. The suspension travel in the front and rear is nine and 7.6 inches respectively.

The front is fitted with 8.7-inch single-disc brakes and a 80/100 R21 tire. The rear is fitted with 5.1-inch drum brakes and a 100/100 R18 tire. The frame is made out of steel.

TTR225’s are known for being extremely reliable. The TTR225 is based on and nearly identical to its street legal sister bike, the XT 225, the only difference being the lights, passenger foot pegs, smaller rear sprocket, and other street legal accessories. Both bikes are equipped with electric start.

Manual for the Yamaha TT-R225

The above information was gleaned from the owner’s manual for the 1999-2004 Yamaha TT-R225.

Yamaha TT-R225 maintenance schedule screenshot from manual
Yamaha TT-R225 maintenance schedule screenshot from manual

You can download it from Yamaha’s website here.

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