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Re: Compression test DOHC

Posted by FastCletus on May 04, 2013; 11:24pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Compression-test-DOHC-tp4038499p4040251.html

Just redid this test.  compared my gauge to my air compressor.  90 on the compressor was 80 on the gauge.  1-85
2-92
3-75
4-72

The bike runs and is ok to drive, starts easy, plugs look normal, but the bike just seems slow.  Engine loses pull at around 5K rpms.

BAsed on what I have read these numbers are way low and probably dumbfound alot of you that it runs.  

What do you think?  Head gasket?  Rings?  Valves? or all of the above.  

@FastCletus552 aka Jimmy C, buildin' rides out of Napa CA
Current Build 1980 CB 750 F
Finished Build 1975 CB 500T Cafe Racer - SOLD
2002 Ducati 998 Biposto
2005 Rossi #46 Scooter