Try squirting some oil in the cylinder and take the compression test again. If the compression goes up at all it’s the rings, if the compression stays the same it’s the valves
thanx, That was a Fear of mine. I did my first stage 2 on my 103 with 20k. kind why i was curious about the runout. I read .03 and tehshoes where just showing tracks. replaced w/ Dual Fuelings. Nervous as all hell once complete.Replaced items: S&S lifters, Smith Bros adjustable pushrods and there " covers " , Star Racing 577 cams w/ koyo bearings. So far so good... read 200 psi both cylinder an I installed a T-Max ECU The most challenging part was TDC starting off seeing the cam chest marks was great. BUT leaking pushrod covers and retaining nut slips caused me to struggle madley to readjust correctly. Various videos where only partially helpful for the process. i know you could produce a better presentation. Thanx again@@socalmotorcycleservices2876"
AFAIK, compression testing is supposed to be done on an engine at operating temperature. Also, sometimes a blast of compressed air around the plug, prior to removal, keeps possible crud falling in. No, bud. YOU make sure the wrench says "off" to remove the plug? Guy's a hack! 88 likes?
We always do compression tests first and since the compression was so low there was no need to do the leak down test. Either way the head has to come off so we Just popped the head and the damage was very obvious.
Try squirting some oil in the cylinder and take the compression test again. If the compression goes up at all it’s the rings, if the compression stays the same it’s the valves
@@beespoon Thanks, it was a bent valve,
what is the crank runout? And what did you find?
Bent exhaust valve.
thanx, That was a Fear of mine. I did my first stage 2 on my 103 with 20k. kind why i was curious about the runout. I read .03 and tehshoes where just showing tracks. replaced w/ Dual Fuelings. Nervous as all hell once complete.Replaced items: S&S lifters, Smith Bros adjustable pushrods and there " covers " , Star Racing 577 cams w/ koyo bearings. So far so good... read 200 psi both cylinder an I installed a T-Max ECU The most challenging part was TDC starting off seeing the cam chest marks was great. BUT leaking pushrod covers and retaining nut slips caused me to struggle madley to readjust correctly. Various videos where only partially helpful for the process. i know you could produce a better presentation. Thanx again@@socalmotorcycleservices2876"
I have the same bike but my is clean and run better and it's stock
Cool
AFAIK, compression testing is supposed to be done on an engine at operating temperature. Also, sometimes a blast of compressed air around the plug, prior to removal, keeps possible crud falling in. No, bud. YOU make sure the wrench says "off" to remove the plug? Guy's a hack!
88 likes?
@@lucky8003 Thank you for your comment.
Why not do a cylinder leak down test? Will tell you way more than a compression test. Just sayin! Lol.
We always do compression tests first and since the compression was so low there was no need to do the leak down test. Either way the head has to come off so we Just popped the head and the damage was very obvious.
Very good! @@socalmotorcycleservices2876
Did you say that bike has 6k miles in it!?
The bike has 60,000 miles on it.