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Gas Yamaha Gas Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles



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Old 02-15-2007, 03:43 PM   #1
iamnatman
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Default Gonna need more speed

I don't really get it but, I installed a power kit for my yami and it lost a whole lot of speed. :( Serously, its hitting about 7 mph at top speed. I even bypassed the gov. The engine is revving pretty fast but it doesn't go nearly as fast as it used to go. Its almost like a car stuck in 1st gear, I've got plenty of power, just not speed.

What's up with that?



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Old 02-15-2007, 03:54 PM   #2
NO NO NO E-Z-GO!
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Do you have a new belt? Is the drive clutch sticking?
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Old 02-15-2007, 04:25 PM   #3
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Nat, can you post some pics of your clutches and belt area?? That might
help us determine what's going on. You should be faster than that!!

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Old 02-15-2007, 04:46 PM   #4
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Check your motor mounts and see if they are wore out and allowing the engine to move back to far (especially the front mounts). The driver's side is under the air filter box. More than likely the inside rubber piece is broken or wore out. Let me know. It's either this or a problem with a clutch more than likely: rear clutch not opening up or front clutch not pulling belt to the top.

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Old 02-15-2007, 04:51 PM   #5
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tension cable might be broken....
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Old 02-16-2007, 08:36 AM   #6
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Ok, I think I figured it out. The belt is new, the clutch is gripping, and I just bought new engine mounts. The only thing I don't have is a tensinor cable, but, as a substitute I have a dog leash where the cable is. Believe it or not, the leash is holding and I haven't had any problems with it, yet. I will buy a replacement when I can. Anyway, I think the problem was the bolt on the secondary sheave. It came loose and when I retightend it, the cart's speed increased. The bolt keeps unscrewing itself but I ordered a new one from TNT G-cart. If that doesn't solve the problem, I can just put two bolts on the shaft and re install a pin where the slot is.
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Old 02-16-2007, 08:45 AM   #7
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Quote:
Originally Posted by iamnatman
Ok, I think I figured it out. The belt is new, the clutch is gripping, and I just bought new engine mounts. The only thing I don't have is a tensinor cable, but, as a substitute I have a dog leash where the cable is. Believe it or not, the leash is holding and I haven't had any problems with it, yet. I will buy a replacement when I can. Anyway, I think the problem was the bolt on the secondary sheave. It came loose and when I retightend it, the cart's speed increased. The bolt keeps unscrewing itself but I ordered a new one from TNT G-cart. If that doesn't solve the problem, I can just put two bolts on the shaft and re install a pin where the slot is.
Make sure your half moon key is installed correctly on the shaft. That locks the outer sheave in place. You should also have small hole in the end of the shaft where a cotter pin will go to keep the nut from backing all the way off.

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