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compression deppression
Posted: Sun Jun 01, 2008 9:29 am
Author: kwaka
Hi fellas, after rebuilding the motor on the Z1B we noticed a bit of smoke out the exhaust on a recent run. The bike has only 200 miles on the engine, it had the heads recond. new rings, but the bore was only honed. I did a compression test and got a reading of only 90 PSI per cylinder, squirt of oil made no difference. The local mech. says it still needs time to bed in. What do you think??
Posted: Sun Jun 01, 2008 10:12 am
Author: Pigford
Just rebuilt mine, and it does smoke a tad first 30 seconds.....
Don't panic until its done a few 100 miles.... unless it gets worse & worse
Give it time to
bed in and hopefully it'll be OK.
Posted: Sun Jun 01, 2008 10:46 am
Author: Hack
Did you remember to hold the throttle fully open when carrying out the compression test?
Scared myself with that one on more than one occassion!
Posted: Sun Jun 01, 2008 12:39 pm
Author: kwaka
errr thanks hack, i'll try a second time
. That's why i love this forum
Posted: Sun Jun 01, 2008 1:09 pm
Author: chrisu
warm engine as well..................
Posted: Mon Jun 02, 2008 9:27 am
Author: kwaka
All's well, 1&4 150 PSI, 2&3 140 PSI.