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2007 Yamaha 50TLR 2 Stroke runs fine till warms up

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wwerickson

New member
I have this 2007 Yamaha 50TLR 2 Stroke starts up fine when cold then when it gets warm it just dies like it has no gas
there is plenty of gas, bulb is hard.
after several restart attempts like 30 or 40 tries, it will start again
does not want to idle.
if we keep it WOT after restart it will run but pulses slower to faster.
I found that if I play with the fuel enrichment setting changing from normal to on, it will run but does smoke more.
this seems to tell me that the fuel pump is pumping enough fuel.

I have rebuilt all three carbs.
these carbs do not have the low idle screw.
changed out the fuel lines.
I am using the pure 95 octane gas.

any help out there that can point me in the right direction?

Thanks.
 
after the electronic choke starts to release / gets warmed up, it just dies like it has no gas
there is plenty of gas, bulb is hard.
It sounds like to me a vacuum leak.
got new parts on order, hope to seal leak if that is my issue.
 
wwerickson said:
after the electronic choke starts to release / gets warmed up, it just dies like it has no gas
there is plenty of gas, bulb is hard.
It sounds like to me a vacuum leak.
got new parts on order, hope to seal leak if that is my issue.
Click to expand...
Dude,is that one minute or one hour?
 
Rwbutler said:
Dude,is that one minute or one hour?
Click to expand...
If I was able to get an hour before the issue started, I don't think I would be complaining due to this being a lake boat and never takes more than 15 minutes to get to my destination.
there is an electronic choke that starts to disengage after about 3 to 5 minutes and that is when it starts to act like it is running out of gas.
if I turn on fuel enrichment, then it is fine.
 
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