Yamaha TT-R 230 adjust timing chain

SOURCE: Yamaha TTR 250, Idling Problem

you might have an air leak somewhere. chack to make sure you did not loose any o-rings from the diaphragm cap or the pilot screw. also check that there are no cracks on the intake boot. VERY LIGHT sprays of the either or carb cleaner can lead you to the source.

SOURCE: Yamaha TTR 230 When i pulled in the dealer they

take the plug out and see if theres a spark buddy get back to me

SOURCE: timing chain tensioner adjustment

all v twin engines are noisy, if you could totally silence the exhaust noise, you would be horrified how awful the motor sounds, it could probably do with the cam chain tensioner ADJUSTING. i wouldn't think it would need replacing. unfortunately the manual only recomends this being done by a qualified tech, i have a xvs 650 with same trouble. i would adjust myself if i could find out the correct tollerences.

SOURCE: Starting Problems Yamaha TTR 125

Remove the water trap bowl at the bottom of the petcock, (gas valve). Any water or trash in the bowl? Drain a cup of gas from the tank. Any water or trash in the cup? Dump it, clean it and re-mount it, ( not all bikes have a water trap bowl ).

Drain the carburetor. There should be a screw on the lower side of the carb float bowl. Remove the screw then replace it after the fuel drains. Turn the gas back on and wait a minute for the carb to fill with gas. Install a new stock NGK spark plug and try to start the engine. If the bike doesn't start and run properly then shut off the gas and remove the carburetor from the engine.

Remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray into all the little airways and fittings in the carb. Remove the two screws on the outside throat of the carb and spray into the screw holes as well.
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Be sure to put these two screws back in the same hole they came out of. IMPORTANT > do not tighten these two screws down. Only screw these in until they LIGHTLY seat. Now turn each screw one and one half turns outward. Put the rest of the carb back together, clean the air filter and install the carb. Be sure the bolts are tight. Let the float bowl fill then start the engine. Set the idle speed with the idle screw. This process should get you back on the road.

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SOURCE: ttr 230 high RPM's looses power sputters / new

lOSE OFF POWER ON TOP END,IS A GOOD INDICATION OF NOT ENOUGH FUEL..TRY AQ BIGGER MAIN JET