Daaaa...I did watch this but forgot...Thanks for the heads up here in a previous request.........Will give it a try as my throttle travels about two thirds of the way before anything even happens....Again, you are my go to guy for info and even parts (have bought stuff already) for my newly purchased 2019 gas Yamaha cart.....Will be upgrading it this fall with a whole bunch of your additions....lights, three way switch, etc.
Turning the governor down that much guarantees future problems such as oil blow by in the air filter system, valves blown out of adjustment and generally poor performance in the future. I own a shop, and we get more gas carts that have had the governor screwed with and run like crap than almost any other customer complaint on gas carts. Sure, it'll go faster. But the price for that speed is premature wear and failure. These gas carts are not designed to run 20+ mph. But hey, I guess as long as people keep doing it I'll keep getting paid to fix it. I have three in the shop right now with this problem.
Interesting. I've been building carts for over 20 years and have turned the governor up on every single one of the thousands of carts I have built and never had 1 single issue. Adjusting the governor to where we show in this video will cause the engine to rev to approximately 3900 rpm (depending on throttle cable adjustment). We have ran these engines on the dyno with no governor to over 6000 rpm and they hold up just fine. 3900 rpm is nothing for these engines. On the newer EFI engines, the electronic rev limiter is set at 4250 rpm from the factory. If it wasn't safe to rev them that high, Yamaha wouldn't have set the rev limiter that high.
@@PowerEquipmentMan like I said, one of the most common issues gas carts come into the shop for. The starter/generator on these engines are also not designed for extended hi rev action and those will literally implode from being over revved to long. I should have taken a photo of the one last week I had. Starter/gen looked like someone put a grenade in it. Today's gas carts are not intended by the manufacturers to run over about 18mph. I was just like you for many years turning stuff up. But now that I am in the business I see the results of running those carts being turned up and while there are many who get away with it, there are many who get stuck with it down the road. I would simply advise that one take caution in messing with the governor system to much.
@@PowerEquipmentMan Absolutely correct. Remember, these are engineered in japan with all the quality you would expect. No Yamaha engineer is going to design a governor system that would allow it to be set at such a point that it would damage the engine. The governor is primarily there to limit liability of golf courses by allowing them to set it at a lower speed to avoid accidents to include rollovers and such. I've got the PTV with 8:1 high speed gears and wide open with the governor turned all the way down I'll hit 33 mph @ 2900 rpm which is nothing for these carts. Good video by the way.
@@ladyluck3096 I wish I could, but diagnosis over video is very hard. These engines were not designed to run that fast, regardless of what the people above post. Not to mention that a golf cart in the US is restricted by both state and federal law on it's speeds and if you are in an accident where someone is hurt the lawsuits will bankrupt you.
Great video! I bought a refurbished 2020 G29 Yamaha Quietech2 4 seat cart, I now have an issue I cannot find any info on, and was hoping to get some help here. Our cart developed a thumping/rumbling noise when it was under a light load/ light throttle situation. It is still under warranty, so I brought it in and the dealer installed a Stiffener Plate Kit (SPK), which did fix the noise problem nicely. However, in the process, it killed the performance of my cart! My top speed is now 2-3 mph less. While I could easily maintain 24-25 mph on level ground before, I struggle to stay at 22 mph now. Adjusting the governor does not seem to help much, either. While initial take off is good, once you get above 15 mph or so, the motor just flattens out and stops pulling properly. If I have 4 people aboard, I barely make it up hills sometimes that I had no trouble with before. I feel that something is not right with the clutching after the SPK kit install. I have not been able to find any info on what this SPK involves, or how installing it could have messed up the clutching. I do have an appt to it looked at again for this problem soon, but I am concerned the dealer is going to just say that there is no problem and that my performance is normal, even though I know it is truly much less than before. Any suggestions would be appreciated.
Interesting. I believe the SPK is a bracket that gets installed between the back of the engine and the transaxle. This plate ties the two together to make it more solid. I believe the 2021 and newer models come with this plate from the factory. This plate would keep the distance between the crankshaft and the transaxle input shaft at a set distance, so they can't pull towards each other under a load which would effect your clutching. I would think that this would improve your clutch performance, not hurt it. I would be interested to hear what the dealer says after looking at it again. Keep me posted - sales@powerequipmentman.com
@@PowerEquipmentMan Thank you! I have struggled to find out what the SPK actually entailed. I agree, not sure why the SPK kit hurt my performance...is it possible that the distance between the primary and secondary clutches are now at an improper distance apart, so the belt is not riding at the correct place within in the clutches? If so, is this distance something that can be checked or adjusted? Thanks so much, I have posted this question on several other sites, and you're the only one who has come through with some good info! Randy
@@randymoore774 My best guess is that before installing the SPK the clutches would pull closer together under a load. In theory, this would change the ratio of the clutches. The primary clutch would be shifting out at the different rate than the secondary clutch. While this may have improved performance, it's not how it is supposed to be and would likely cause excessive wear on belts, clutches, bushings, etc.. But that is just a guess, that is not something I have ran into before. How many hours does your cart have on it? I looked in the service manual and did not see any spec for the distance between those shafts.
@@PowerEquipmentMan Hello again, I do have an update, but not a fix! (FYI - I also wrote you directly on this issue to your Website, if you prefer to not fill up your RUclips comments with my issue) So I picked up my cart, and they replaced the muffler, an intake sensor and the fuel pump. All under warranty, that's great, but this has nothing to do at all with the PSK kit and/or clutching…so I was very skeptical. However, I must admit, it ran great. Started better, ran clean, better throttle response and top speed was about 24-25 just as before. I was a happy camper. However, I checked my governor, only to find out it was set to 100%, maxed out to the end! Hmm, not so good after all. I have watched your videos on this, and you strongly recommend against setting the governor to the stop. So, I think this new tech totally ignored the information I provided him regarding the SPK kit install, and approached this issue as a motor problem, replaced fuel pump, sensor, & muffler, and got the motor running clean, and in the process, fixed a rough running cold start issue I was also having. However, once he got the motor running clean, he just cranked the governor to the stops to get the top speed back, and did not fix the root cause of the clutch issue that was created by the SPK kit install. Not sure what to do here. I am sure if I bring it back and try to talk to them about the governor adjustment, they will likely tell me it’s ok and to just go away! Most customers would not even be aware of their incorrect governor adjustment, and would have drove away pleased. But I know it is still not right. I could just leave it adjusted to the stop, but am concerned about any long-term damage having the governor adjusted too far. I did back this off to your recommended setting, and my top speed dropped a couple mph, so the root cause of the SPK install issue is not fixed. Since the performance issue started immediately after the SPK install, I still feel it must be something that was altered when the plate was installed. Here are a couple things I want to try, but welcome your suggestions. 1-Since the plate mounts to the starter bolts, is it possible the started belt is now too tight? I did check it and it seems ok, but I may try loosening it a bit and see if that helps. 2-Could the belt be worn? I did mic it and it is 1.25 inches wide, so it is in within specs, and that is something that wears over time, and this was an instant change. 3-I may remove the SPK plate and see if my performance returns, then go from there. 4-Grease the clutches? Again, not something that goes bad instantly. 5-I was planning on installing a stage 1 clutch kit from you in the fall, but may consider it sooner now. Do you suspect that may help out? I am not sure on how to proceed with this, and appreciate anything you can suggest. Thanks so much, Randy
@@PowerEquipmentMan at :39 there are no threads at the back of governor arm. At :44 it looks like 1/2” threads behind governor arm. So do you mean 1/2” threads remaining behind the nut or 1/2” threads remaining behind the back of governor arm?
A little oil is no big deal. If it is quite a bit of oil, then your rings are most likely getting worn out and you have excessive blow by. Running the engine at a higher RPM (tightening the governor) just makes more blow by (crankcase pressure).
Backfires are usually caused by the butterfly valve not fully closing when the throttle pedal is released due to the throttle cable not be properly adjusted or a dirty carb.
@@PowerEquipmentMan new cart owner and was told it’s from fuel being left over in the carb. Mines does not back fire but it does kinda bog down when on a hill. Was told it’s the secondary clutch but ???
@@victoryous1709 When the throttle cable is adjusted too tight it will hold the throttle blade in the carb slightly open. This allows air to continue flowing threw the carb (pulling fuel along with it) while the spark plug isn't sparking but the engine is still turning over while coasting. Then when you hit the pedal again and the spark plug fires the first time it ignites all that fuel and you get a big bang. This is why the throttle blade must be able to fully close in the carb when the pedal is released. If you need more hill climbing power, a clutch kit will be the best upgrade to do. We are currently developing a couple different clutch kits for the drive1 and drive2 that we hope to release in the next couple months that will solve your problem. Keep an eye on our website - www.powerequipmentman.com
I do not recommend running your cart at wide open throttle for extended periods of time (more then a couple blocks at a time) after turning the governor up. That being said, I have turned the governor up on hundreds of Yamahas and have yet to see one get damaged because of it.
Daaaa...I did watch this but forgot...Thanks for the heads up here in a previous request.........Will give it a try as my throttle travels about two thirds of the way before anything even happens....Again, you are my go to guy for info and even parts (have bought stuff already) for my newly purchased 2019 gas Yamaha cart.....Will be upgrading it this fall with a whole bunch of your additions....lights, three way switch, etc.
Amazing!! Went from having the slowest cart on campus to the fastest!
Awesome! Thanks for watching!
A ziptie will work as well.
Turning the governor down that much guarantees future problems such as oil blow by in the air filter system, valves blown out of adjustment and generally poor performance in the future. I own a shop, and we get more gas carts that have had the governor screwed with and run like crap than almost any other customer complaint on gas carts. Sure, it'll go faster. But the price for that speed is premature wear and failure. These gas carts are not designed to run 20+ mph. But hey, I guess as long as people keep doing it I'll keep getting paid to fix it. I have three in the shop right now with this problem.
Interesting. I've been building carts for over 20 years and have turned the governor up on every single one of the thousands of carts I have built and never had 1 single issue. Adjusting the governor to where we show in this video will cause the engine to rev to approximately 3900 rpm (depending on throttle cable adjustment). We have ran these engines on the dyno with no governor to over 6000 rpm and they hold up just fine. 3900 rpm is nothing for these engines. On the newer EFI engines, the electronic rev limiter is set at 4250 rpm from the factory. If it wasn't safe to rev them that high, Yamaha wouldn't have set the rev limiter that high.
@@PowerEquipmentMan like I said, one of the most common issues gas carts come into the shop for. The starter/generator on these engines are also not designed for extended hi rev action and those will literally implode from being over revved to long. I should have taken a photo of the one last week I had. Starter/gen looked like someone put a grenade in it. Today's gas carts are not intended by the manufacturers to run over about 18mph. I was just like you for many years turning stuff up. But now that I am in the business I see the results of running those carts being turned up and while there are many who get away with it, there are many who get stuck with it down the road. I would simply advise that one take caution in messing with the governor system to much.
@@PowerEquipmentMan Absolutely correct. Remember, these are engineered in japan with all the quality you would expect. No Yamaha engineer is going to design a governor system that would allow it to be set at such a point that it would damage the engine. The governor is primarily there to limit liability of golf courses by allowing them to set it at a lower speed to avoid accidents to include rollovers and such. I've got the PTV with 8:1 high speed gears and wide open with the governor turned all the way down I'll hit 33 mph @ 2900 rpm which is nothing for these carts. Good video by the way.
Just bought a 2017 drive 2 and it's clanking loud.i adjusted the valves and still loud.could you diagnose it over video and I can pay you
@@ladyluck3096 I wish I could, but diagnosis over video is very hard. These engines were not designed to run that fast, regardless of what the people above post. Not to mention that a golf cart in the US is restricted by both state and federal law on it's speeds and if you are in an accident where someone is hurt the lawsuits will bankrupt you.
Great video! I bought a refurbished 2020 G29 Yamaha Quietech2 4 seat cart, I now have an issue I cannot find any info on, and was hoping to get some help here.
Our cart developed a thumping/rumbling noise when it was under a light load/ light throttle situation. It is still under warranty, so I brought it in and the dealer installed a Stiffener Plate Kit (SPK), which did fix the noise problem nicely. However, in the process, it killed the performance of my cart!
My top speed is now 2-3 mph less. While I could easily maintain 24-25 mph on level ground before, I struggle to stay at 22 mph now. Adjusting the governor does not seem to help much, either.
While initial take off is good, once you get above 15 mph or so, the motor just flattens out and stops pulling properly. If I have 4 people aboard, I barely make it up hills sometimes that I had no trouble with before. I feel that something is not right with the clutching after the SPK kit install.
I have not been able to find any info on what this SPK involves, or how installing it could have messed up the clutching. I do have an appt to it looked at again for this problem soon, but I am concerned the dealer is going to just say that there is no problem and that my performance is normal, even though I know it is truly much less than before.
Any suggestions would be appreciated.
Interesting. I believe the SPK is a bracket that gets installed between the back of the engine and the transaxle. This plate ties the two together to make it more solid. I believe the 2021 and newer models come with this plate from the factory. This plate would keep the distance between the crankshaft and the transaxle input shaft at a set distance, so they can't pull towards each other under a load which would effect your clutching. I would think that this would improve your clutch performance, not hurt it.
I would be interested to hear what the dealer says after looking at it again. Keep me posted - sales@powerequipmentman.com
@@PowerEquipmentMan Thank you! I have struggled to find out what the SPK actually entailed. I agree, not sure why the SPK kit hurt my performance...is it possible that the distance between the primary and secondary clutches are now at an improper distance apart, so the belt is not riding at the correct place within in the clutches? If so, is this distance something that can be checked or adjusted? Thanks so much, I have posted this question on several other sites, and you're the only one who has come through with some good info! Randy
@@randymoore774 My best guess is that before installing the SPK the clutches would pull closer together under a load. In theory, this would change the ratio of the clutches. The primary clutch would be shifting out at the different rate than the secondary clutch. While this may have improved performance, it's not how it is supposed to be and would likely cause excessive wear on belts, clutches, bushings, etc.. But that is just a guess, that is not something I have ran into before. How many hours does your cart have on it?
I looked in the service manual and did not see any spec for the distance between those shafts.
@@PowerEquipmentMan Hello again, I do have an update, but not a fix! (FYI - I also wrote you directly on this issue to your Website, if you prefer to not fill up your RUclips comments with my issue)
So I picked up my cart, and they replaced the muffler, an intake sensor and the fuel pump. All under warranty, that's great, but this has nothing to do at all with the PSK kit and/or clutching…so I was very skeptical. However, I must admit, it ran great. Started better, ran clean, better throttle response and top speed was about 24-25 just as before. I was a happy camper.
However, I checked my governor, only to find out it was set to 100%, maxed out to the end! Hmm, not so good after all. I have watched your videos on this, and you strongly recommend against setting the governor to the stop.
So, I think this new tech totally ignored the information I provided him regarding the SPK kit install, and approached this issue as a motor problem, replaced fuel pump, sensor, & muffler, and got the motor running clean, and in the process, fixed a rough running cold start issue I was also having. However, once he got the motor running clean, he just cranked the governor to the stops to get the top speed back, and did not fix the root cause of the clutch issue that was created by the SPK kit install.
Not sure what to do here. I am sure if I bring it back and try to talk to them about the governor adjustment, they will likely tell me it’s ok and to just go away! Most customers would not even be aware of their incorrect governor adjustment, and would have drove away pleased. But I know it is still not right. I could just leave it adjusted to the stop, but am concerned about any long-term damage having the governor adjusted too far. I did back this off to your recommended setting, and my top speed dropped a couple mph, so the root cause of the SPK install issue is not fixed. Since the performance issue started immediately after the SPK install, I still feel it must be something that was altered when the plate was installed. Here are a couple things I want to try, but welcome your suggestions.
1-Since the plate mounts to the starter bolts, is it possible the started belt is now too tight? I did check it and it seems ok, but I may try loosening it a bit and see if that helps.
2-Could the belt be worn? I did mic it and it is 1.25 inches wide, so it is in within specs, and that is something that wears over time, and this was an instant change.
3-I may remove the SPK plate and see if my performance returns, then go from there.
4-Grease the clutches? Again, not something that goes bad instantly.
5-I was planning on installing a stage 1 clutch kit from you in the fall, but may consider it sooner now. Do you suspect that may help out?
I am not sure on how to proceed with this, and appreciate anything you can suggest.
Thanks so much,
Randy
Mine did 25mph until I threw a 6 inch lift kit on it yesterday with 23 inch tires. Just clocked it at 30mph today.😁
Awesome! Thanks for watching
Have a g 29 yamaha 2011 is there a cheap way to make it ride alittle less rough bouncy 😮
Set tire pressure to 12 psi.
Do you happen to know if you can similar adjustments on an old school yahama G1?
Yahama G1 electric*
Sorry but we do not deal with older Yamahas, so I do not have any info on them.
How do you get to the one under the starter without taking apart the starter
Getting to that adjuster is a pain. That is why we usually try to just make adjustments at the pedal if possible.
So is there a governor on an EFI Yamaha? I'm considering buying a new 21' or 22' Yamaha. Great info
Yes the EFI carts use the same type of governor. Here is the video on turning up a new EFI - ruclips.net/video/T8a0gV3Q_bg/видео.html
another great video
I’m confused. Should it be set at :39 or :44 in the video without harming engine? They look like different settings.
Its the same setting. You can see it better at :39.
@@PowerEquipmentMan at :39 there are no threads at the back of governor arm. At :44 it looks like 1/2” threads behind governor arm. So do you mean 1/2” threads remaining behind the nut or 1/2” threads remaining behind the back of governor arm?
@@adamallworth8915 About 1/2" of threads from the backside of the nut.
Is it ok if some oil is going into the intake after adjusting the governor?
A little oil is no big deal. If it is quite a bit of oil, then your rings are most likely getting worn out and you have excessive blow by. Running the engine at a higher RPM (tightening the governor) just makes more blow by (crankcase pressure).
Wont this cause back fire also?
Backfires are usually caused by the butterfly valve not fully closing when the throttle pedal is released due to the throttle cable not be properly adjusted or a dirty carb.
@@PowerEquipmentMan new cart owner and was told it’s from fuel being left over in the carb. Mines does not back fire but it does kinda bog down when on a hill. Was told it’s the secondary clutch but ???
@@victoryous1709 When the throttle cable is adjusted too tight it will hold the throttle blade in the carb slightly open. This allows air to continue flowing threw the carb (pulling fuel along with it) while the spark plug isn't sparking but the engine is still turning over while coasting. Then when you hit the pedal again and the spark plug fires the first time it ignites all that fuel and you get a big bang. This is why the throttle blade must be able to fully close in the carb when the pedal is released.
If you need more hill climbing power, a clutch kit will be the best upgrade to do. We are currently developing a couple different clutch kits for the drive1 and drive2 that we hope to release in the next couple months that will solve your problem. Keep an eye on our website - www.powerequipmentman.com
Only works on gas drive motors….
Yes this is only for gas engine carts.
Will this wreak my cart over time
I do not recommend running your cart at wide open throttle for extended periods of time (more then a couple blocks at a time) after turning the governor up. That being said, I have turned the governor up on hundreds of Yamahas and have yet to see one get damaged because of it.
Good video.
Thanks for watching!
👍