Venom Ghost loud pinging from valves after adjustment (video)

Jeshmont · 06-02-2021, 08:31 PM

so I did the standard valve adjustment I took both the covers off instead of the whole valve cover I spun the engine till I saw the T on the flywheel and adjusted both valves to .004 as per recommendation from Jerry but now I'm getting a very loud pinging that wasn't there before I know "tappy happy" valves but this seems excessive? I even took out the spark plug to feel for the air pressure so I'm pretty sure everything is normal and there was drag on the feeler gauge for both and the nuts were tightened down I was able to actually physically tap both of the valves down with my finger.

**JerryHawk250** · 06-03-2021, 07:36 AM

Did you adjust them while the engine was cold? If done while the engine is warm or hot the valve gaps will be more when the engine cools down.

ChillRider · 06-03-2021, 07:43 AM

Did you turn the crankshaft a couple of times after setting the valves, to verify that they stayed at the intended setting? On my Zongshen Sierra, I had to repeat the setting procedure a couple of times, and actually had to use a smaller gauge than my target setting (e.g. I had to use the 0.05mm for getting an effective 0.08mm, and an 0.08mm to get an effective 0.10 mm).

If I set with the appropriate feeler right away, then after turning the crankshaft a couple of times I found that the clearances increased after the first valve open-close cycle, but no more after that.

06-02-2021, 08:31 PM	#1
Jeshmont Join Date: Mar 2021 Location: Baltimore, Maryland Posts: 75	Venom Ghost loud pinging from valves after adjustment (video) so I did the standard valve adjustment I took both the covers off instead of the whole valve cover I spun the engine till I saw the T on the flywheel and adjusted both valves to .004 as per recommendation from Jerry but now I'm getting a very loud pinging that wasn't there before I know "tappy happy" valves but this seems excessive? I even took out the spark plug to feel for the air pressure so I'm pretty sure everything is normal and there was drag on the feeler gauge for both and the nuts were tightened down I was able to actually physically tap both of the valves down with my finger.
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06-03-2021, 07:36 AM	#2
JerryHawk250 Moderator Join Date: Oct 2016 Location: Houma, La. Posts: 11,578	Did you adjust them while the engine was cold? If done while the engine is warm or hot the valve gaps will be more when the engine cools down. __________________ 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel
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06-03-2021, 07:43 AM	#3
ChillRider Join Date: Jun 2020 Location: A small country with a funny name Posts: 164	Did you turn the crankshaft a couple of times after setting the valves, to verify that they stayed at the intended setting? On my Zongshen Sierra, I had to repeat the setting procedure a couple of times, and actually had to use a smaller gauge than my target setting (e.g. I had to use the 0.05mm for getting an effective 0.08mm, and an 0.08mm to get an effective 0.10 mm). If I set with the appropriate feeler right away, then after turning the crankshaft a couple of times I found that the clearances increased after the first valve open-close cycle, but no more after that.
	2