The piston hit the valves they were bent compression test after seating new exhaust valves was 150 without decompression disabled
it fires up and races idles,at like 4000

Took carb apart and the mix screw was missing the washer and the oring was jammed, removed that it ran normal for 5 seconds then started racing again

Plus goes white when idle through the roof
exhaust drivers side glowing in 30 seconds

So i assume its lean

Is it jet problem
Air leak
air fuel mix???
carb boot looks good throttle kills it when it running

The throttle cable is not stretched or caught with carb off seems to,do nornal operation

The oil/temp light is always on

Pulled oil return and cranked engine oil was,pumping,out,there

Motor doesnt sputter runs good but,just,like full throttlejus

 

Carb was spotless
Like brand new
temp and oil sensors are both hooked up
we switched temp two wires didnt know if,they were right
can empty bowl cause this sympton if it uses all the available fuel


So about double message hit send too soon
Thanks

 

The only way an engine can RPM is an air leak. That is flat out the only way.

Where is your air leak is the question? Is the slide hanging up? Do you have a manifold leak at the head? At the carb?

Only you can find out. But start looking for an air leak because you have one somewhere.

 

Thanks for help btw

How do I find it
Can't let it run too much just screams

Boot look new
Can it be clogged fuel jet?
Bowl not filling enough

It's a cv carb

Slide isn't stuck
Throttle closes space
Can I try to cover carb with hand to see if it chokes out to see if leak in on motor side or carb?


Boot on top sealed properly

Timing marks lined up

The hole for the pilot jet is very very small a piece of small thin wire won't fit through it