20 Most Recent 2002 Yamaha TT-R 125 - Page 3 Questions & Answers

try ajustin clutch 1st--or u may hav internal problems and they get complex with bottom end-buy a clymer manual--is the case to the rite oil or level?

You likely have a bad float valve or a stuck float.

The cables are prone to seizing up on this bike, you can try lubricating it but you will have to remove it do do this effectivley, feed oil in from the carb end, and work cable untill it moves freely, then re fit to bike

Regards

Jim

the idle set screw located left side center of the carburetor brass slotted screw

Yamalube or equivalent10\40,

Just insert in the hole,very few machines require threading dip stick back in...Have a great memorial weekend...

sounds like the rev limiter kicking in to me..not sure

Yes you can if the engine is cool,but don;t use a pressure washer it will force water past seals and could damage bearings

without taking apart the whole motor, you can take a chain link apart, and break the chain apart, then tie the the new chain to the old one and pull it back through.

Could be a host of things from poor valve tolerances, wrong jets in carburetor, wrong range sparkplug, type of fuel used or a loose stator assembly. Has the top end been maintained? Is compression good? Correct oil type and level? Using the muffler or not? Header dented? Is it serviced regularly?
Retarded timing will run the exhaust hotter than normal and backfire easily, will also ruin valves, piston, rings and cylinder bore.
Take generator cover off and check stator housing and pick-up coil are not loose or show signs of movement in any way.
Check condition of carby jets and replace with stock # or one size larger. Check inlet manifold for air leaks or cracks as too lean a motor will burn valves/piston crown. If this is not the cure, your problem should be left to a mechanic with 4 stroke experience.
http://www.yamahaownershandbook.com.au/index.php
Your bikes manual can be downloaded free at this site.
Cheers.

wen you stall a yammy the gears wont budge until u rock your bike back and forth whilst kicking it into gear

10 - 40 synthetic 2 stroke

You can do that but getting the correct heat range plug might be trouble. The better soluition is to use a Heli-Coil thread repair kit, this will restore the threads to the factory size. A kit comes with a special tap, several heli-coil inserts and the installation tool. Follow the instructions and you will be fine, one tip that I do not know if it is in the instructions or not, pack the flutes on the tap with heavy grease, this will catch and hold the cuttings keeping them from falling down in the cylinder. Also make sure the piston is at the bottom of the stroke when tapping the hole, this will keep the tap from running in to it.

I am in ausralia so I do not know if there is an altitude difference between were you bought the machine & where you are now if there is you will need to alter your jetting before you try anything else remove the float bowl & make sure that the needle & seat are not obstructed you can try altering the mixture you will find the mixture screw on the right side of the carby turn it in or out no more than a quarter of a turn at a time this may give you a satisfactory result if not Im afraid it wil be necessary to experiment with the jetting

SAE 10/40W

Remove wheel / axle / punch out bearing from opposite side with slim punch.

here you go

http://www.thumpertalk.com/forum/archive/index.php/t-204190.html

http://www.southbayriders.com/forums/showthread.php?t=36823

That is a sign of carb problems! You will need to remove it and disasembel it and clean every nook and cranny. Use carb cleaner and a air compresser.

Howdy: Not enough line to explain - Get a factory manual if you can or
just a aftermarket one. It will really help

If you want to see what the service manual says about it
You can download a free one at
http://www.yamaha-motor-europe.com/community/service/manuals.jsp
Good luck!