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03-06-2011, 01:17 PM | #1 |
Not Yet Wild
Join Date: Mar 2011
Posts: 17
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Questions On Power Kits-G2
i have a g2 with 22 inch tires that im looking to get more power out of. on buggiesunlimited there are two kits with the spring and the washer and one includes the clutch sheave.
what does this clutch sheave do? whats different? and will i still keep my top speed with these power kits? |
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03-06-2011, 02:30 PM | #2 |
maintaining a low profile
Join Date: Oct 2009
Location: SW Virginia USA
Posts: 6,316
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Re: Questions On Power Kits-G2
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03-06-2011, 11:14 PM | #3 |
G8 Club Founding Member
Join Date: Sep 2010
Location: Middle of Virginia, USA
Posts: 4,265
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Re: Questions On Power Kits-G2
tcoe, I installed the Yamaha power kit on my cart last week. (the one from carts plus as mentioned above). Before, I had to be moving quite fast to get the cart to pull up steep slopes. Once I installed this kit, I can pull up to any slope and stop at the bottom. Hit the gas, and it'll drive up anything now. It didn't affect my top end speed either. I think the sheave is just machined, to allow the belt smoother action as it tightens down.
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04-02-2011, 04:15 PM | #4 |
Not Yet Wild
Join Date: Feb 2011
Location: Onekama, Michigan
Posts: 62
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Re: Questions On Power Kits-G2
The kit says its new Machined yamaha sheave, does anyone know for a fact where its machined? It also says it lowers the gear ratio, not just keeps it in low gear longer. Thanks
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04-03-2011, 12:40 AM | #5 |
Gone Wild
Join Date: Sep 2010
Location: Erie, Pennsylvania
Posts: 989
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Re: Questions On Power Kits-G2
The machining of the sliding sheave is actually done near the center/inside of the sheave. (If you look closely at the ad pictures, you can see where this machining is done). The purpose of this machining is to allow the two sheaves to be closer together at start up. With the sheaves closer together, the drive belt will be up higher on the driven pulley, which will effectively increase the sheave diameter, giving a lower ratio at start up. The heavier spring causes the driven clutch to shift to a higher ratio at a higher engine rpm than with the original spring. Sort of like having a lower "low" gear and also staying there just a bit longer. Hope this helps to clarify things a bit. RAY
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04-03-2011, 05:13 AM | #6 |
Not Yet Wild
Join Date: Feb 2011
Location: Onekama, Michigan
Posts: 62
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Re: Questions On Power Kits-G2
Thanks, that's exactly how I thought they would machine the part. It seems like tho if they machined 1 side they would have to machine the other to keep everything balanced???
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04-03-2011, 07:27 AM | #7 |
Gone Wild
Join Date: Sep 2010
Location: Erie, Pennsylvania
Posts: 989
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Re: Questions On Power Kits-G2
I'm not 100% sure here, but I think because the inner (non-movable) sheaves of both the primary and secondary clutches are lined up, this will not be a problem. RAY
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04-03-2011, 08:00 AM | #8 |
Smoov az a gravy sammich
Join Date: Oct 2008
Location: Limestone, Illinois
Posts: 3,462
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Re: Questions On Power Kits-G2
No, It is only for torque during startup... Once the belt override's this part, it is normal clutch action. More torque for climbing hills and stock motors with lifts
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