Big Woody Posted October 8, 2010 Share Posted October 8, 2010 I have recently acquired an 2000 Yamaha TW125 Trailway, I was told it needed the carb setting up when I bought it and duly booked it in for the work. When I got it back I was told "he has done his best with it but it really needs a new carb" now it does run a lot better and seems to run up to around 40/50mph fine but when I put it into top gear it slowly starts to slow down (as if fuel is getting restricted) until I have to drop it down gear to build the revs up again. A. Does this sound like a carb problem ? would hate to track one down and find it does not fix the problem. B. What carb should I look for to fix it ? Cheers for reading this and sorry if it's a dumb question but I have very limited knowledge of mechanics. Link to comment Share on other sites More sharing options...
blackhat250 Posted October 8, 2010 Share Posted October 8, 2010 to run up to around 40/50mph fine but when I put it into top gear it slowly starts to slow down A. Does this sound like a carb problem ? What milage has the bike done ,,? new carb , , has it a inline fuel filtre,? or petcock filter , ? i know it seems silly but some garages dont give a fk, and take the easy way out , and say you need a New carb , i doubt this ,, Link to comment Share on other sites More sharing options...
Guest CardBoardDave Posted October 8, 2010 Share Posted October 8, 2010 I read that they top out at 55-60 anyway maybe its giving you its all now? Link to comment Share on other sites More sharing options...
Big Woody Posted October 8, 2010 Author Share Posted October 8, 2010 15000 miles and sorry how do i tell which filter it has? Link to comment Share on other sites More sharing options...
Moderator Airhead Posted October 8, 2010 Moderator Share Posted October 8, 2010 Needing a new carb is a drastic remedy to say the least! Did you ask him why he said that? Link to comment Share on other sites More sharing options...
Big Woody Posted October 8, 2010 Author Share Posted October 8, 2010 Cardboard dave that may be the case but why should it slow down, so much so i need to change down to build speed and revs back up? Link to comment Share on other sites More sharing options...
Big Woody Posted October 8, 2010 Author Share Posted October 8, 2010 Oldgitonabike no like i say i have very little knowledge about mechanics so just to his word on it Link to comment Share on other sites More sharing options...
Guest CardBoardDave Posted October 8, 2010 Share Posted October 8, 2010 Cause its a bike made for sand and bogs so it would have low down power more than top end. Like 3k revs max torque or close too. Not a screamer Link to comment Share on other sites More sharing options...
Moderator Airhead Posted October 8, 2010 Moderator Share Posted October 8, 2010 Oldgitonabike no like i say i have very little knowledge about mechanics so just to his word on it Ask them anyway, like i said thats a drastic remedy and an expensive one too. maybe the carb just wants a good clean. If youre not confident get some professional help with that Link to comment Share on other sites More sharing options...
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