yamaha 60, Carb leaking

[glennb]

3rd carb on bottom, Leaking gas from overflow valve at top. pulled airfilter cover and bottom carb after starting and running for 3 seconds+ gas starts coming out of one of the valve holes at top. Changed and gapped all new plugs this moring and now also bottom plug clean as when I put it in. Other 2 plugs show a little oil and gas. This tells me I am not getting any gas thru to that plug. Have checked evrything and it sounds like it is running on 2 plugs.
Any help out there? At witts end!
Thanks ahead for any help you can offer.

 

[cousinabe]

Re: yamaha 60, Carb leaking

gunked up carbs.
what is the full model number?

Sounds like a stuck float or leaking needle valve in the carb bowls. They can get gummed up pretty easily with todays E10 fuels.
The float is what limits the amount of fuel getting to the carb. Your float is probably stuck open and won't shut off when the bowl is full.

What did you use to stablize your fuel?

 

[glennb]

Re: yamaha 60, Carb leaking

I used nothing for a stablizer. What can I do now?
Thanks in advance.

 

[cousinabe]

Re: yamaha 60, Carb leaking

give us a little more history of the problem.
when was it running right last?
are you just starting it coming out of winter layup?

most likely you're gonna need to clean out the carbs and replace filters.

 

[glennb]

Re: yamaha 60, Carb leaking

Model 2004 60TLRC , Serial no. 6H2Kl1002278
Yes, coming out of winter In Tampa. Been inside garage for last 8 Months.
Put New gas & new plugs, 3rd plug is like brand new
after it was started and repulled along with others which showed gas and oil on them. Bottom Carb of the 3 has the problem.

Could it be electrical related to that carb?

Thanks cousinabe

 

[Dunaruna]

Re: yamaha 60, Carb leaking

............Could it be electrical related to that carb?...............

Thanks cousinabe

No. You have a stuck needle/seat. The carb needs overhauling. Do all 3.

 

[cousinabe]

Re: yamaha 60, Carb leaking

not electrical. just gummed up carbs.