Originally Posted by tjdmlhw (Post 2462785)

This is a question for those of you who have gas powered golf carts that are set to go over the legal 20 mph limit. Our cart was capable of doing up to 25 mph on a flat roadway, so we decided to have the governor set to 20 mph. But the cart now will only go about 16 going up hills. Is this what the rest of you are experiencing with your 20 mph carts?

Another issue is going down those same hills, it is almost impossible to keep it from going over 25 (if I give it half throttle, it will easily go up to 30), which by definition makes it an illegal vehicle. Our mechanic says there is nothing he can do about this.

I would just like to know if this is normal for a golf cart.

Originally Posted by CoachKandSportsguy (Post 2462862)

that's faulty logic. . .

the torque/power created go 20 Mph over flat land cannot maintain speed when climbing a hill, because more torque/power is needed to over come the additional gravitational pull. More torque/power is needed than the engine can provide.

simple. .

the governor on a gas engine is not the same as auto pilot on a car, where the computer uses the speedometer to increase or decrease power to maintain a constant speed. .

Originally Posted by Topspinmo (Post 2462932)

I tried heavy duty belt made by gates. It was hard to get on due to the stiff beefed up design, it had extended delay when you stopped and started back up. I didn’t like that even though it would lasted very long time, the down side IMO would be extra wear on clutch face disks IMO due to harder material. did I mention it extremely hard to get off. Nearly impossible. I thought i was going to have remove mount bolt on secondary clutch just get it off.

I buy OEM belts they last about two to three years and I’m careful with jackrabbit starts and taking off in steep grade. I also clean belt and clutch faces every 6 month or so. Even after 2 years or more on the belt starting to separate. I can feel when my belt starting to go bad, feel slight vibration during acceleration knowing it’s either needs cleaned or getting bad enough to change soon.

If you happen to be on MMP and your really old drive belt separates and falls off. Maybe you’ll be lucky if I’m traveling by? I carry extra good used belt, take about 4 mins to install.

Originally Posted by Topspinmo (Post 2462932)

I tried heavy duty belt made by gates. It was hard to get on due to the stiff beefed up design, it had extended delay when you stopped and started back up. I didn’t like that even though it would lasted very long time, the down side IMO would be extra wear on clutch face disks IMO due to harder material. did I mention it extremely hard to get off. Nearly impossible. I thought i was going to have remove mount bolt on secondary clutch just get it off.

I buy OEM belts they last about two to three years and I’m careful with jackrabbit starts and taking off in steep grade. I also clean belt and clutch faces every 6 month or so. Even after 2 years or more on the belt starting to separate. I can feel when my belt starting to go bad, feel slight vibration during acceleration knowing it’s either needs cleaned or getting bad enough to change soon.

If you happen to be on MMP and your really old drive belt separates and falls off. Maybe you’ll be lucky if I’m traveling by? I carry extra good used belt, take about 4 mins to install.

Originally Posted by tophcfa (Post 2462866)

The OEM spring in the secondary clutch of gas Yamahas is optimized for golf course usage, without high speed gears. Yamaha’s Personal Transportation Vehicle line of golf carts (the carts used in the Villages) have high speed gears, allowing them to travel at 20 MPH without stressing the engine, but still come with the softer secondary clutch spring found in their line of Fleet Carts. An easy fix is to swap out the spring in the secondary clutch with a stiffer spring and replace the OEM drive belt with a heavy duty belt (G Boost and Kingzilla both make excellent belts). The fix doesn’t increase speed, just torque, which helps with hill climbing. I swapped out the secondary clutch spring in our Quiet Tech last winter, with a green spring from power equipment man .com, and have noticed a significant improvement in hill climbing.

Originally Posted by tjdmlhw (Post 2462785)

This is a question for those of you who have gas powered golf carts that are set to go over the legal 20 mph limit. Our cart was capable of doing up to 25 mph on a flat roadway, so we decided to have the governor set to 20 mph. But the cart now will only go about 16 going up hills. Is this what the rest of you are experiencing with your 20 mph carts?

Another issue is going down those same hills, it is almost impossible to keep it from going over 25 (if I give it half throttle, it will easily go up to 30), which by definition makes it an illegal vehicle. Our mechanic says there is nothing he can do about this.

I would just like to know if this is normal for a golf cart.

Originally Posted by midiwiz (Post 2463076)

let's try some logic.

1) most gas carts are 1 cylinder.
2) most carts with 1 cyl. has low HP
3) body weight is part of the physics equation for max potential speed
4) hill, degree of incline as that pertains to resistance

5) finally - any 1 cyl. engine has little ability to haul a ton of pounds up a hill without slowing down.

Originally Posted by Nordhagen (Post 2463006)

After reading all this, I’m sure glad I have an electric cart😎

Originally Posted by biker1 (Post 2463011)

My drive belt is 9 years old with 33K miles and is still in spec. Part Number JC0-G6241-01. This is not the OEM belt from Yamaha in 2014. Carts and Clubs replaced the OEM belt with the current belt in 2016 because of less than smooth starts from a stop.

Originally Posted by Topspinmo (Post 2463087)

Look at belt it will be separated for age and heat friction. Yep, I could made my original belt last that long but I didn’t like slipping and vibration during acceleration. I could still have ordinal tires on my car even it tread worn off, but I don’t like living on edge… :D