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What compression reading should i be seeing?
Posted: Mon Jul 06, 2009 11:20 pm
by j_brawner
Bike isn't running and did a compression test and it was showing aound 35 PSI. Is that about right or what should it be?
85' Honda Aero 50
Re: What compression reading should i be seeing?
Posted: Mon Jul 06, 2009 11:31 pm
by devenex
It should be 90+ PSI.
Re: What compression reading should i be seeing?
Posted: Thu Jul 09, 2009 11:38 am
by burnt_toast
j_brawner wrote:Bike isn't running and did a compression test and it was showing aound 35 PSI. Is that about right or what should it be?
85' Honda Aero 50
top end is dead at 35psi
get new rings at minimum, or rings and piston
check condition of cyl, if no major scoring or scratches can reuse
Re: What compression reading should i be seeing?
Posted: Thu Jul 09, 2009 11:49 am
by eliteguy50
The lowest compression I have seen on a running unit is 60 psi but it would barely go anywhere, honda specs compression to be 114 to 172 psi as good but I agree with devonex, 90 psi is just fine.
Re: What compression reading should i be seeing?
Posted: Fri Jul 10, 2009 8:07 pm
by Lunytune
35 is about what I got on last two overhauls I've done, both had broken rings.