I recently bought this bike from a friend due to a float bowl problem in the carb I have since fixed that and cleaned the carb at least 4 times. The bike runs good with the choke pulled out except for a slight throttle hesitation on the bottom end other than that it cranks fine even in the cold. the bike will not run at all with the choke pressed in. I know there is something wrong still,maybe timing issues i just dont know. someone please give me a tip its drivin me crazy, thanx.
Possibly water in your fuel.... it's a small tank so just put about a quarter bottle of gas line antifreeze in the tank... it's alcohol so it will **** up the water. there is also the possibility the fuel is somewhat dirty... change the fuel filter as well
Robert
Hi jjewel,
Theres seems to be some kind of restriction of gas flowing into the inlet valve at suction, have you set the mixture screw right?
Are the pilot and main jet free of obstruction?
Can you please let me know what was the original problem with the float bowl?
I may be able to post you more on the issue.
cheers!.
Knight. (Yamaha seca XJ750 '81)
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i have a yamha 250F and the timing is out 23 deg can this be adjusted???
Thanx knight007 the original problem with the float bowl was that the rubber in the gas valve had *** apart and had stuck above the float needle and was causing the bowl to overflow i have since cleaned twice and I am pretttty sure its clean im not sure were the mixture screw is though that may be a good idea to find
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