ive got a 650sx with a 44mm carb, west coast pipe, westcoast exhaust manifold, mainer high comp head, drilled water box. Compression on the ski with with out the high comp head is 130psi on each cylinder, compression the with high comp head is 150 on each cylinder. shouldn't the compression with the stock head be atleast 150psi, and with the high comp head be around 175??? if the compression was 175 instead of 150 would I be able to tell a noticeable difference???
650 sx compression quesions, just needin some advice
- Thread starter Cody
- Start date
Mike W
Infidel
- Location
- North Florida
Check it with another compression tester. The one you are using may be off.
Ok well here's the next thing. I've got a new top end and cylinders, but the motor I've been using had the stuck cylinder, so I'll have to put the top end in a another motor that's been sitting for a while, how can I clean the bottom end out and makes sure it's free of debris with out splittin cases
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Sent from my iPhone using Tapatalk
- Location
- St Charles IL
stock they are roughly 150psi
they can run till about 125psi but anything less will most likely need a top end.
Sounds like your top end is just a little worn
my daily driver waveblaster has had 125/135 psi compression for years n runs better then any other ski i own ha.
they can run till about 125psi but anything less will most likely need a top end.
Sounds like your top end is just a little worn
my daily driver waveblaster has had 125/135 psi compression for years n runs better then any other ski i own ha.
