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post #1 of (permalink) Old 12-05-2002, 03:39 PM
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compression for a yz125

is 130psi good for a 85 yz125? if not what should i be looking for i have seen lots of diff reading's around the web and most r for 250 and up.

thanks
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post #2 of (permalink) Old 12-06-2002, 01:25 PM
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Re: compression for a yz125

If it runs.... then yes it's good . Remember that 130psi is way too much for your tires.

Why do you ask?
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post #3 of (permalink) Old 12-06-2002, 03:21 PM
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Re: compression for a yz125

well i know that they r all top end power for most part but i do ride on trails an i starting to get the bog's i mean it is to the point where it feels like a car in 4th gear going up a hill. [img]images/graemlins/frown.gif[/img]
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post #4 of (permalink) Old 12-06-2002, 05:33 PM
 
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Re: compression for a yz125

it's called clutch it, hit the pipe, clutch it, hit the pipe, clutch it, hit the pipe, it's how u ride a 125, try it, next time click down to third, fan the clutch with the gas pegged and once i feel it starting to jerk let out a bit faster on the clutch till ur wheels light up a bit, release it all the way, get a little weight towards the back, don't flip, and ride that out, click into 4th, give it a bit of clutch/gas all the way open and see how it works
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post #5 of (permalink) Old 12-06-2002, 07:34 PM
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Re: compression for a yz125

yeah i kinda got that going now it's realy the only way to ride it on trails. but running dunes and messiing around on jumps it's not a problem being im on the pipe most gears.

it's just like from what i have seen posted if your power valve is junk or gumed up you will have a bug problem.

but bike r new i work for a ford dealer as a tech so cars r my thing and i tend to try and relate the running problems to a car [img]images/graemlins/grin.gif[/img]
post #6 of (permalink) Old 12-06-2002, 07:47 PM
 
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Re: compression for a yz125

just saying as long as your hammerin the gas and clutchin it you should be alright..maybe their is something wrong with it though, checking couldn't hurt
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post #7 of (permalink) Old 12-08-2002, 06:00 PM
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Re: compression for a yz125

130 is really low. u want like 150-190psi on a 125 but im not sure if thats on an 85, but i know my 91 had 180pis w/ a new top end.
post #8 of (permalink) Old 12-09-2002, 03:10 PM
 
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Re: compression for a yz125

I'm with Kyron, that's way too much for your tires.
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post #9 of (permalink) Old 12-10-2002, 09:26 AM
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Re: compression for a yz125

could be the tranny bladder or your torque seals

check your jetting and powervalve
post #10 of (permalink) Old 12-12-2002, 11:54 AM
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Re: compression for a yz125

A full tranny bladder could blow your torque seals and make a mess of the case. Make sure you drain at regular intervals to avoid this.
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