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compression specs
Posted: 09:50 pm Sep 29 2010
by frankenschwinn
What should compression test yield. mine is at 155.
Got the bike running though
Posted: 09:58 pm Sep 29 2010
by Indawoods
155 is real good!. . . . . proceed!
Posted: 10:05 pm Sep 29 2010
by rbates9
My book says 95-150 is good.
Posted: 10:51 pm Sep 29 2010
by bmiller
95-150 seems to be a massive range in "acceptable".
I'm assuming this is a scale with 'wear-n-tear' in mind.
would a 95 mean "you'll need a new top-end soon"
and
a 150 mean "it's pretty fresh?"
Posted: 11:01 pm Sep 29 2010
by Indawoods
That's the way I would interpet it...
Posted: 11:34 pm Sep 29 2010
by bmiller
Indawoods wrote:That's the way I would interpet it...
Sounds like a good "sticky"....
Posted: 02:53 pm Sep 30 2010
by rbates9
Personally, I would probably do a top end when it got down around 120 but to each there own. And the wide spec is probably just a range that it will still run at?
Posted: 06:05 am Oct 01 2010
by Julien D
My 89 manual says 119 - 185psi. I had about 170 immediately after my last top end.
Posted: 05:41 pm Oct 01 2010
by rbates9
>|<
>QBB<rbates9 wrote:My book says 95-150 is good.
That is from a 97 kdx 200 book.
Posted: 08:17 am Oct 02 2010
by Julien D
Yeah, for some reason the H series had lower compression specs than the E's.
Posted: 03:38 pm Oct 04 2010
by rbates9
What is the lowest anybody has had on a "running" bike? How low can you get and still have it run?
Posted: 09:14 am Oct 05 2010
by fuzzy
They will continue to run for a long time...to the point that the bike is unrideable because the engine will only run in the upper 50% of it's range, and be down on power at that (of course).
Posted: 04:01 pm Oct 05 2010
by Mr. Wibbens
I think mine was still around 155 around the time I did the topend. +6 years and thousands of miles
Posted: 05:01 pm Oct 05 2010
by Julien D
Not sure what mine was when i tore it down. But from a visual of the piston and cylinder, it couldn't have been much. Still ran good though, lol.