Motorcycle Repair: 1996 ZX750F, compression test, falcon


Question
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Followup To
Question -
CHRIS I DID A COMPRESSION TEST AND GOT 150psi 135psi 145psi 115psi does it sound like there is a problem with # 4 and is the rest of the cyl. where they should be. Good luck and ride safe.
FALCON

Answer
Hi Jayson.

It sounds like you have a problem.

All four cylinders should have the same compression, or be very close to each other.
 #1 and #3 are close and likely within specs.  Refer to the repair manual for the accurate specs.

 #2 and #4 are definitely well below the others and are likely out of or near to out of specs.

Like I said, all of the cylinders should be the same (in an ideal world), but as long as they are all within 5psi of each other, then the bike will run.

Good luck and ride safe.
FALCON