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Specifically Honda.
my trx 450er has been sitting for a while, and needs a little love. It had a high rpm miss when i put it away, and was getting REALLY tough to start. The valves have been checked, and re- shimmed to spec, still no luck.
I'm looking for some advice, or someone to work on it.
lmk
A coworker of mine has a fairly new one that had the same type issues. Eventually had to pull the head off and do a valve job.
I'd do a compression and leakdown test if it's a 4 stroke.
Otherwise look at plug, coil, charging system.
Plug is new, coil has been swapped, we've tried different ignition boxes as well.
I just need to have someone come over with a case of beer and go to town on it.
The base gasket does leak a little, which almost makes me think that it could be pushing past the rings, and causing excessive crank case pressure.
I haven't done a leak down test. good call.
Do a compression test
I just might do this tomorrow. sick of having a garage ornament i can't ride.