Kentsib
Forum Newbie
- Joined
- Apr 4, 2020
- Threads
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- 1
Hey Im hoping someone can point me in the right direction.
FC55 bogs down when revving up but only after running for a few mins, for the 1st 2-4 mins it runs spot on!
I’ve done the following:
- New carb was fitted before this issue
- Tweaked H mix, doesn’t make a difference.
- new fuel with correct mix
- compression is good around 120psi
- new fuel lines
- tested with exhaust removed incase spark arrestor was blocked (my model doesn’t have a removable spark arrestor)
- new spark plug
- I've checked all engine bolts are tightened properly to prevent air leaks
I guess the fact it runs sweet when cold must be a big clue but I’m not sure what to look for and haven’t been successful finding anyone addressing this exact issue on any forums/ youtube vids.
any ideas would be much appreciated!
Cheers,
FC55 bogs down when revving up but only after running for a few mins, for the 1st 2-4 mins it runs spot on!
I’ve done the following:
- New carb was fitted before this issue
- Tweaked H mix, doesn’t make a difference.
- new fuel with correct mix
- compression is good around 120psi
- new fuel lines
- tested with exhaust removed incase spark arrestor was blocked (my model doesn’t have a removable spark arrestor)
- new spark plug
- I've checked all engine bolts are tightened properly to prevent air leaks
I guess the fact it runs sweet when cold must be a big clue but I’m not sure what to look for and haven’t been successful finding anyone addressing this exact issue on any forums/ youtube vids.
any ideas would be much appreciated!
Cheers,