I need some help!? - Wrist Twisters
 
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post #1 of 9 Old 06-17-2012, 01:20 AM Thread Starter
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I need some help!?

The last couple of rides my DRZ has given what I would call a couple heavy coughes at high rpm, it's never done this before so I was thinking maybe crappy fuel?

Well being that I was going to change the fire cork, I figured I'd check the valves too, on the exhaust valves I got .006 on one and .011 other, intake .006 and .008, I don't really think this would cause the coughing and I know someone will say "check TT" just want to run it by you guys first

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post #2 of 9 Old 06-17-2012, 01:32 AM
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check the vacuum petcock.... if it starts happening more, turn the fuel to prime as to bypass the vacuum switch and have it always on.

Also check the kickstand kill switch... those have been known to vibrate and cut the motor.

What are specs spost to be on the valves? i wouldnt worry too much above loose valves (one or two notches out of the loose side of a spec) especially on the exhaust side.... but i would have concern for the valves that are tight and watch them closely.

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post #3 of 9 Old 06-17-2012, 01:42 AM Thread Starter
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Thanks! Specs are 10mm-20mm intake and 20mm-30mm exhaust

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post #4 of 9 Old 06-17-2012, 04:11 AM
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Quote:
Originally Posted by Whiplash97 View Post
Thanks! Specs are 10mm-20mm intake and 20mm-30mm exhaust
? If you mean .010 to .020 and .020 to .030 then your a little tight no?

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post #5 of 9 Old 06-17-2012, 04:58 AM Thread Starter
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Quote:
Originally Posted by rmb

? If you mean .010 to .020 and .020 to .030 then your a little tight no?
Ok specs say intake .006-.008, exhaust .010-.015....about?

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post #6 of 9 Old 06-17-2012, 05:06 AM
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Looks like one exhaust is tight then at .006.

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post #7 of 9 Old 06-17-2012, 05:26 AM Thread Starter
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Quote:
Originally Posted by rmb
Looks like one exhaust is tight then at .006.
So do ya think that could cause the fore mentioned?

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post #8 of 9 Old 06-17-2012, 05:57 AM
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Honestly I don't know but regardless the one valve needs to be adjusted to be within spec.

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post #9 of 9 Old 06-17-2012, 06:36 AM Thread Starter
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Quote:
Originally Posted by rmb
Honestly I don't know but regardless the one valve needs to be adjusted to be within spec.
Ok, well I'll be gettin that adjusted ASAP, and checkin the kick stand safety, thanks!

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