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Gas Yamaha Gas Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles |
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04-11-2013, 09:16 PM | #31 | |
Gone Wild
Join Date: Nov 2012
Location: Southeastern Pa.
Posts: 319
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Re: Clutch question on an '07 "Drive"
Quote:
And here are the old vs.new shots: |
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04-13-2013, 05:04 AM | #32 |
Gone Wild
Join Date: Oct 2012
Posts: 1,733
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Re: Clutch question on an '07 "Drive"
im interested to see how the jet kit,airfilter, and the air box mod does for your before i order from plowmans..if there is very little difference with the new jets, filter and airbox mod then i will just get the clutch rebuilt, spring and the belt from him.
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04-13-2013, 06:28 AM | #33 |
Gone Wild
Join Date: Oct 2012
Posts: 1,733
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Re: Clutch question on an '07 "Drive"
Ok did some measuring of my current clutches and belt. The wide section if the belt is a tad less than 1" and the narrow section of the belt is 3/4" wide. Looks as if my belt is about shot. The secondary clutch the belt is 3/8" from making it to the top if the clutch. Just my pinching each side of the secondary sheeves they feel thin. Don't know how much material plowman mills off each but they feel very thin to mill down. The primary clutch when at full throttle the belt is about 1/2" from ever getting to the top of the primary. Looks like either a new secondary like you got or send him my secondary to see if it can be machined properly and a new belt would be the ticket.
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04-13-2013, 06:31 AM | #34 |
Gone Wild
Join Date: Oct 2012
Posts: 1,733
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Re: Clutch question on an '07 "Drive"
My belt isn't quite as low in the sheeves as your first pic but its not far off though.
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04-13-2013, 09:06 AM | #35 |
Gone Wild
Join Date: Oct 2012
Posts: 1,733
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Re: Clutch question on an '07 "Drive"
Update..called cart parts plus and spoke to the owner..he said the belt should be at least 1.25" wide which means my belt is trashed. ordered a severe duty erlandson(EPI) belt and the speed spring with new bushings.. he says this should be a huge difference in what my cart performs at now. Ill see how the new belt does first and decide to go forth having plowman machine my secondary and a new clutch spring later.
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04-13-2013, 11:14 AM | #36 |
Gone Wild
Join Date: Nov 2012
Location: Southeastern Pa.
Posts: 319
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Re: Clutch question on an '07 "Drive"
I'm in the process of installing the new jets and airbox mods today. I don't expect much difference in top end speed since my governor is still functioning, but the acceleration may get better. Here's hoping!
Yes, your belt is shot. Anything under 1" is considered worn. A new belt should be 1 3/16ths" for new, or 1 1/4" for a worn set of clutches so that you can make it to the tops of the pulleys. My new belt sits exactly at the top of the secondary at rest. It's also slight shorter than the stock Yamaha part (I had a little trouble getting it on because of that), which Don explained takes up some of the excessive slack and eliminates the "jerky" shifting problems that the Drive carts sometimes have. One thing you have to be careful of is simply replacing the secondary clutch spring. There are other factors that affect back shifting other than just the tension of the spring. When Don sets up a clutch he also machines the ramps so that they work the best for your application. I had him do mine for low end grunt power, and I have to say, he hit the target on that one. |
04-13-2013, 03:17 PM | #37 |
Gone Wild
Join Date: Jan 2011
Location: Las Vegas, Nevada
Posts: 1,942
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Re: Clutch question on an '07 "Drive"
I wanna see what the jets and air box do. I want a drive pretty bad.
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04-13-2013, 10:04 PM | #38 |
Gone Wild
Join Date: Nov 2012
Location: Southeastern Pa.
Posts: 319
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Re: Clutch question on an '07 "Drive"
Well, I installed the fatter jets and did the airbox mods to improve flow. My carb was pretty well crudded up and needed a good cleaning anyway. After it was all said and done, I really didn't notice much difference. Again, that's mostly due to my governor still working, so my top speed is still limited by that. But one thing I did notice is that the engine sounds "throatier". Don't know if it's in the exhaust note or from the airbox, but it sounds different, and (to my ear) way cooler. I did manage to crank down the governor a bit more and I'm now running at 18 MPH.
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04-14-2013, 01:48 AM | #39 |
Gone Wild
Join Date: Oct 2012
Posts: 1,733
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Re: Clutch question on an '07 "Drive"
the throatier noise is most likely the added holes sucking in my air
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04-14-2013, 02:59 AM | #40 |
Gone Wild
Join Date: Jan 2011
Location: Las Vegas, Nevada
Posts: 1,942
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Re: Clutch question on an '07 "Drive"
I would believe so. Most shop compressors make more noise from the intake then the exhaust. Intake noise is usually more then most people realize. I do like a bit of throaty noise.
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