Question about 2000 Yamaha TDR 125

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No pick up on trottle starts ok ticks over ok lacking revs not sure what carb should be on the bike as it is a import

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A service manual is a valuable tool with an aging bike. I suggest the dealer/mfr. or Clymer books. In the meantime, go to the library reference section...646 stacks should have what you need.

Posted on Oct 13, 2009

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Hi i brought this bike in the summer and its never run right,its fine on tick over but when the revs get up it starts jumping like its lacking fuel, ive cleaned all the jets but it didnt help, it has k and...


Hi... if you have vacuum cabs... Have you checked to see if the vacuum on the fuel tap is working correctly.. Take the fuel pipe of the carbs, put the fuel tap to on.. If its a vacuum tap there should be no fuel coming out. Put the pipe in your mouth and suck on the pipe, if fuel comes out then stops it seems to be working. Also check the diaphragms in the top of the carbs are not split or have any pin holes in them. You can do this but holding the diaphragm up to the light.. (If they are vacuum carbs).. You can aso check to see if the carb rubbers are leaking between the carbs and the engine.. You can do this by starting the bike up and leave it ticking over. Get some carb cleaner or WD40 and spray it onto the rubbers between the carbs and engine. If the engine pics up speed (revs go higher) then the rubbers need to be changed.. Hope this helps you out...

Good luck.. Tony.

Nov 18, 2013 | 1988 Yamaha XJ 600

1 Answer

Carburator cleaning


I dont know what you mean by tick, but the lack of the engine revving is most likely the throttle cable is broken or has became discontented at one end or the other.

Jan 05, 2013 | 2007 Yamaha Majesty 125

2 Answers

Idols then starts to rev up all by its self


OK, there should be a warmed up idle adjustment on this bike on the carbs under the tank (like my 1985 Honda Interceptor). Maybe it's set too high. On my bike the screw has a knob on it for easy adjustment.

On the Kawasaki motorcycles I'm ot sure if they had this feature.
But, if they don't, then a screwdriver should be enough to turn the idle adjustment screw.

Also, check for kinked cables for the throttle.

Happy biking!

Jul 21, 2010 | 1993 kawasaki ZXR 750

1 Answer

ERRATIC TICK OVER SOMETIMES HIGH REVS AND SOMETIMES STALLS - LUMPY TICK OVER AND LACK OF POWER


dear friend-i do not believe that the problem lies with the gearbox.please find a friend with the same car and swop the TPS(trottle body sensor)and try your car if you cannot fiend a friend then go to a dealership,beware of what they will tell you but insist on there help with trying another TPSsensor

Oct 30, 2009 | 2002 Hyundai Santa Fe

1 Answer

Suzuki GSF400 Bandit problems with tick over.


as you have replaced carbs you will need to retune for fuel intake also check its getting enough air ie.. air filter has been changed or is clogged

Jun 16, 2009 | 1992 Suzuki GSF 400 Bandit

1 Answer

Starts O.K. Lacks pulling power. Will not rev to full power.


check for a clogged exhaust look at catalytic converter it could be stop up.

May 24, 2009 | 1999 Suzuki Vitara

1 Answer

Starts easy wont rev at all


hi m8y,, soundz to me the float heights are wrong,,have u tried that at all, u can only check that when the carbs are taken out and turned upside down,, all four floats should be the same height,, check wot the measurements should be in the manual,,if u have one,, if u havent try these guyz 4 a downloadable manual,,, www.repairmanual.com ,, if all is cool and correct,come back in m8 and il take u threw the next step,, cheers

Apr 28, 2009 | 1981 Yamaha XJ 650

2 Answers

No problem just done top end rebuild


Just ride it normally. Avoid super high revs when the bike is not in gear and using the power.

Please rate this solution. Thanks bookerm!

Apr 02, 2009 | 2003 Yamaha YZ 125

2 Answers

1976 Gran Torino motorcraft 2150 2bbl carb. Starts and runs ok at high revs but as choke eases off and revs decrease, engine stalls. Fuel pump OK. Float levels and choke pull off OK. No obvious vacuum...


Are you sure your idle ports ( size of pinhole) in carb aren't plugged with something? What happens if it starts to die, and you give it a quick squirt of WD-40 , down throat of carb?

Oct 17, 2008 | Ford LTD Cars & Trucks

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