[dollarbill333]

foreman 450 when riding coming off wide open throtle will make a loud pop through exhaust like unburnt fuel ingniting starts normal and is responsive dont think this is normal any possable cause and fix



Thanks
Bill

 

[mud99]

Welcome to the forums. I cant remember were I read the cause of this but some one will be along to help.

 

[tomgodd]

I heard it was normal off of a full throttle burst. My 400 does it.
But in some situations it could be a jetting issue. When exactly does it do it?

 

[Helmut]

Sounds like it's running a little lean. It could be an exhaust leak. Check your pipe where it bolts to the head and make sure it's not loose. Also, check the whole pipe for cracks. I have had them crack before, especially around the curve in the pipe where it comes off the head.