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Posts: 71
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Joined: Mar 30, 2013 15:09:16 GMT -5
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Post by played1 on Jul 1, 2015 22:43:08 GMT -5
So I gots me one of the monster gy6 kits that came with a new clutch and a 1500 rpm spring. It hangs up when I let off the throttle and holds on as I slow and releases at a low speed. Makes. Me backfire a bit, just wondering if anyone has an idea for a fix
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Post by steve on Jul 2, 2015 7:30:33 GMT -5
All the clutches do that, that's why you don't go back to idle RPM when you let off of the throttle. The new spring just has you at a "lower gear". It just is creating a little more vacuum during decel. It's not malfunctioning, that is normal clutch behavior.
Raise your idle a bit with the idle screw. Not the A/F screw, the idle screw. You may have to adjust it so you idle at about 2500 RPM, or so. Mine did the exact same thing, and this fixed it.
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Post by geh3333 on Jul 2, 2015 20:58:25 GMT -5
It is true , they all do this . however the stiffer the clutch springs the sooner the clutch will release. The clutch cannot release any sooner then about 4000 rpms. That's about when the clutch engages with 2000 rpms springs. Also a stiffer main spring will slow you down quicker. What main spring are you running ? Try the stock main spring and see what happens.
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Post by hillbillybob on Jul 3, 2015 5:47:36 GMT -5
Backfiring on decel has nothing to do with your clutch, but is a symptom of a lean operating condition. Check for vacuum leak in the hose that attaches to the right side of your carb. The valve it connects to is there to prevent backfiring during deceleration. Also check exhaust system near the head for loose connection, or missing gasket. A leak there will also cause this.
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Post by geh3333 on Jul 3, 2015 18:20:05 GMT -5
Backfiring on decel has nothing to do with your clutch, but is a symptom of a lean operating condition. Check for vacuum leak in the hose that attaches to the right side of your carb. The valve it connects to is there to prevent backfiring during deceleration. Also check exhaust system near the head for loose connection, or missing gasket. A leak there will also cause this. Actually you are correct , but a sudden down shift will also Enhance the lean condition. A sudden down shift will raise the rpms , so if he is running lean on decel this will enhance the popping. This is the thing. Running lean on decel , means you are not getting enough fuel on decel. As the rpms drop the popping slows or lessens. If you have a stiff main spring. The rpms do not drop as quick. They really don't rise , but they stay up longer causing more popping. So when it comes down to it. You need to fix the lean issue to get rid of the popping completely, but yes a stiffer main spring can enhance the popping. |
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Freshman Rider
Currently Offline
Posts: 71
Likes: 4
Joined: Mar 30, 2013 15:09:16 GMT -5
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Post by played1 on Jul 4, 2015 9:19:39 GMT -5
Cool guys. I'm going to turn off the fuel cut off in the ecotrons edu kit and see if it fixes my problem today. I'm also working on a Bluetooth adapter work around for the kit without spending $50 on the stupid one from ecotrons. Once I'm done with that, I'll post the complete how to here.
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Post by carasdad on Jul 7, 2015 6:25:57 GMT -5
As he said..a heavy aftermarket torque/contra spring will cause this to happen as well. My scoot does the same with a 2k torque spring...slightly with a 1.k torque spring..and not at all with a 1k torque spring.  ... Glenn |
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