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View Full Version : Tri moto 125 need carb help!



gcoxon2000
07-06-2017, 05:27 PM
I have a Yamaha tri moto 1982 125 and i have taken the carb apart about 3 times i have cleaned it and blowen compressed air through every hole i can see i have made sure theres nothing plugged but it just wont run.. i have spark and if i spray gas right through the carb and into the cylinder it will run then rev really high (witch i know means its just leaning out from lack of fuel) and then dies nothing i do to this carb seems to make it work can anyone help me?

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125Mmadness
07-06-2017, 07:25 PM
Maybe the float is stuck shut and not letting fuel into the carb

gcoxon2000
07-06-2017, 07:41 PM
Where are you mix screws set and can you shoot carb cleaner through the pilot jet and see it come out of the circuit on the other side
Yes i can shoot carb cleaner through the pilot jet and see it come through and the idle mix screw is set at 1 and a half turns out (thats what the manual says to have it at)

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gcoxon2000
07-06-2017, 08:16 PM
How do i see if there is gas in the bowl?

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gcoxon2000
07-06-2017, 08:47 PM
Okay then it does have gas filling the bowl because it spills everywhere when i take it apart

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Rob Canadian
07-06-2017, 09:09 PM
I don't know much about your trike. But supply more details.

Did you just get it? Did this all of a sudden happen? Yes it sounds like a fuel issue for sure. Or to the best of my knowledge.

gcoxon2000
07-06-2017, 09:14 PM
I don't know much about your trike. But supply more details.

Did you just get it? Did this all of a sudden happen? Yes it sounds like a fuel issue for sure. Or to the best of my knowledge.
I just got it a week or so ago and when i got it. it didnt run also the fuel cock thing lets fuel come from the tank and i put a new feul line on it aswell the only thing i dont have hooked up to it is the exhaust and the air box and i dont have and air filter could that have something to do with it?

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