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GX120 TierIII Question
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Topic: GX120 TierIII Question (Read 8474 times)
odogracing
Veteran
Posts: 60
GX120 TierIII Question
«
on:
March 23, 2009, 08:52:10 PM »
I have a question maybe someone can help. I upgraded my 120 with a TierIII flywheel. While doing it I had to loosen the magnedo and slide it over to install the new fly wheel. After installing I set the gap clearence using a match book (old flat head trick), well after bolting the motor back in place, I now have a slight miss on throttle. My question is, would the timing have to be reset as a result of the adjustment? I've heard of people just bolting on and going. I also replaced valve springs, but double and tripple check the valve lash and it's fine. Any help? Note, the motor was responsive before changing the flywheel.
Thanks,
Tim
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joeblow
Rookie
Posts: 5
Re: GX120 TierIII Question
«
Reply #1 on:
March 23, 2009, 10:12:20 PM »
use a filler gauge set top and bottom at about .010 thanks
www.maxhp.net
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odogracing
Veteran
Posts: 60
Re: GX120 TierIII Question
«
Reply #2 on:
March 24, 2009, 08:25:43 AM »
Thank you. Would this cause my hesitation problem?
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heimboyz89
Rookie
Posts: 8
Re: GX120 TierIII Question
«
Reply #3 on:
March 24, 2009, 09:59:03 AM »
Whas the motor at the old timing before (24/26 degree)? And is it a restricted motor? Most of the restricted motors I have seen with the 20 degree timing have a definate bog when you crack the throttle on the pit cart but seem to be fine on the track when they get wound up to speed.
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