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Engine ping
I have a 1981 gs 1100 dyno coil and ingnition.I replaced right hand crankseal and check valve clearence.The bike has some kind of v@h cams.I now have ping in motor when I just let at clutch,only does it for a second at low rpm.In neutral revs up just fine.The timing is at stock setting should I play around with timing or look else where Any adviseTags: None
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kyscootertrash
Pinging
If you're already running 93 octane gas, you can try replacing the springs on the spark advance. when they get weak, the spark advances too early, causing a ping. you can test this with a timing light. You should not reach full advance before 2000 RPM, at a minimum. Before tunable ignitions, we would put stiffer springs on the advance of hotter motors to bring in the advance later.
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Zooks
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SqDancerLynn1
WHat they said + My 850 had a habit of pinging when I first got it. replacement of intake boots fixed the problem. Check the boots too!
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Air leaks and lean tuning cause pinging - those symptoms are more common in the GS than bad timing1978 GS 1000 (since new)
1979 GS 1000 (The Fridge, superbike replica project)
1978 GS 1000 (parts)
1981 GS 850 (anyone want a project?)
1981 GPZ 550 (backroad screamer)
1970 450 Mk IIID (THUMP!)
2007 DRz 400S
1999 ATK 490ES
1994 DR 350SES
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I sprayed carb cleaner around carb boots with no change in rpm.Done best I could with lean rich adjustment, have coulor tune have not used yet.Is there better way to check for leaks.What do any gsers do to adjust there carbs.Mine were about 3 turn out, after carb cleaning I started with that, than adjusted tell it seemed to be running right.This was last summer and did not notice [ ping] until lately.Last edited by tlg1100; 03-20-2009, 09:13 PM.
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Forum LongTimerGSResource Superstar
Past Site Supporter
Super Site Supporter- Mar 2006
- 35598
- Torrance, CA
Check to see if your mechanical advance mechanism turns smoothly as well.
If you have air leaks the idle will creep up when the engine is warm and the idle will be very inconsistent in general and will hang when blipping the throttle.Ed
To measure is to know.
Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182
Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846
Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf
KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection
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