lifted club cars - lifted ezgo
Home FAQDonate Who's Online
Go Back   Buggies Gone Wild Golf Cart Forum > Golf Cart Repair and Troubleshooting > Gas Yamaha
Gas Yamaha Gas Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles



Post New Thread  Reply
Thread Tools Display Modes
Unread 03-20-2017, 02:02 PM   #1
Not Yet Wild
 
Join Date: Mar 2017
Posts: 13
Default G2/G9 speed increase

Hello....I am new to the forum & I have been lurking around the forum recently trying to find out as much as I could about golf carts. I just purchased my first golf cart (1992 Yamaha) & I was looking at increasing the speed. The seller says it is a G2, but with a search of the Serial number, it appears to be a G9. All the reading has helped me, but it gets so overwhelming that it starts to become confusing & was looking for a little help to make sure I do it correctly, since I am by far not the best mechanic out there!

The cart is already lifted (5or 6"?) & has 20" tires on it. I am going to keep the stock engine (which was rebuilt a couple of years ago), but like to get a little more speed out of the cart. From what I have read, the quickest & easiest way would be an adjustment of the governor by turning the 10mm nut on the threaded rod. Do I turn it clockwise & how much do I want to turn it without over-doing it? I also read that replacing the governor speed spring to also gain a few more mph? If I do one or the other or both, what kind of mph increase could I expect? If I did these smaller modifications, would I have to do any others?
Thanks for the help!

Last edited by 7lazy77; 03-20-2017 at 02:03 PM.. Reason: spelling
7lazy77 is offline   Reply With Quote
Alt Today
BGW

Golf car forum Sponsored Links

__________________
This advertising will not be shown in this way to registered members.
Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum
   
Unread 03-20-2017, 02:15 PM   #2
Not Yet Wild
Yamaha
 
Join Date: Jul 2013
Location: hatfield pa.
Posts: 56
Default Re: G2/G9 speed increase

eliminate the governor , and run the throttle pedal cable right to the carb ..its in the stickies above
bpaskill is offline   Reply With Quote
Unread 03-20-2017, 02:24 PM   #3
Not Yet Wild
 
Join Date: Mar 2017
Posts: 13
Default Re: G2/G9 speed increase

Quote:
Originally Posted by bpaskill View Post
eliminate the governor , and run the throttle pedal cable right to the carb ..its in the stickies above
Is there any risks to the engine by doing it this way by completely bypassing the governor that I should be aware of "if" I choose this direction?
7lazy77 is offline   Reply With Quote
Unread 03-20-2017, 02:31 PM   #4
Over This Interview Is...
 
cgtech's Avatar
Yamaha
 
Join Date: Jun 2012
Location: AZ
Posts: 9,120
Default Re: G2/G9 speed increase

Of course, just don't go full throttle down long hills
cgtech is offline   Reply With Quote
Unread 03-20-2017, 04:00 PM   #5
Not Yet Wild
 
Join Date: Mar 2017
Posts: 13
Default Re: G2/G9 speed increase

What are some of the pros/cons of doing the governor mod (zip tie spring or drilling out bracket so shaft spins freely) compared to completely bypassing governor with a new throttle cable straight to the carb?
7lazy77 is offline   Reply With Quote
Unread 03-20-2017, 05:36 PM   #6
Gone Wild
Yamaha
 
Join Date: Jun 2015
Location: NW Iowa
Posts: 770
Default Re: G2/G9 speed increase

drilling out the arm and connecting throttle straight to carb would essentially the same thing crank the 10mm nut all the way down this will increase speed a by a good amount hard to tell how much mph gain you will get your taller tires will give you more top end speed tightening the nut is safer than just bypassing the governor but still have to watch what youre doing down hills
Spicyunicorn is offline   Reply With Quote
Unread 03-20-2017, 06:11 PM   #7
Gone Wild
 
CAMPERCART2013's Avatar
Yamaha
 
Join Date: Nov 2013
Posts: 900
Default Re: G2/G9 speed increase

Quote:
Originally Posted by Spicyunicorn View Post
drilling out the arm and connecting throttle straight to carb would essentially the same thing crank the 10mm nut all the way down this will increase speed a by a good amount hard to tell how much mph gain you will get your taller tires will give you more top end speed tightening the nut is safer than just bypassing the governor but still have to watch what youre doing down hills
Just my two cents again but. As Cgtech and spicy said watch the down hills what ever you decide to do!!!!! I would not recommend straight to the carburetor,if you are going to bypass then drill the bracket this allows FULL THROW of the throttle cable for in my opinion the best driveability you can zip tie the spring or crank the nut down,if that doesn't get what you are looking for then drill arm. good luck, have fun and keep us posted
CAMPERCART2013 is offline   Reply With Quote
Unread 03-20-2017, 06:49 PM   #8
Over This Interview Is...
 
cgtech's Avatar
Yamaha
 
Join Date: Jun 2012
Location: AZ
Posts: 9,120
Default Re: G2/G9 speed increase

If you crank the nut down or zip tie trick, the governor is still functional. Just gives you more speed with governor still operational. You can do the spring flip trick, governor still works, and 1 or 2 more mph than cranked/zip tied. Notice how spring lever is "flipped" around to the other side where the carb cable is, that's max speed while retaining governor function.
Attached Images
File Type: jpg IM000249.jpg (89.3 KB, 0 views)
File Type: jpg 1490053494857-802581145.jpg (136.9 KB, 0 views)
cgtech is offline   Reply With Quote
Unread 03-20-2017, 10:09 PM   #9
Not Yet Wild
 
Join Date: Mar 2017
Posts: 13
Default Re: G2/G9 speed increase

ok...I took the cart for a spin tonight before I did anything & the GPS clocked 12.2 mph. So I tightened the governor nut (clockwise) all the way & took it for another run. I didn't gain any speed (12.2 mph still) & it even ran a little rougher. Why wouldn't I have an increase in speed after doing the governor modification?
7lazy77 is offline   Reply With Quote
Unread 03-23-2017, 11:08 PM   #10
Not Yet Wild
 
Join Date: Mar 2017
Posts: 13
Default Re: G2/G9 speed increase

Any ideas/suggestions?

I did a little more digging on several things after reading some old posts & this is what I found:
Belt only measures 1 1/16, so I will definately get a new belt. Was looking at the Severe Duty double cog.
Took off cover of the primary clutch & inspected. No broken weights or links & everything is clean & tight. Lubed the grease fitting.
Primary clutch sheave has a little wear, but NO holes. Secondary clutch sheave has no wear.
Inspected the backside of the secondary clutch, one of the plastic pads is missing on the ramp. Not sure if this effects anything?

Hoping to find my problem so I can get a little more speed. Once I can figure this out, I would like to get the umax spring to install on it.

Last edited by 7lazy77; 03-24-2017 at 12:12 AM.. Reason: updated info
7lazy77 is offline   Reply With Quote
Reply
Go Back   Buggies Gone Wild Golf Cart Forum > Golf Cart Repair and Troubleshooting > Gas Yamaha


Thread Tools
Display Modes


Similar Threads
Thread Forum
Increase Speed Electric golf carts
G-29 speed increase help Gas Yamaha
how to increase speed in the car Electric Club Car
'99 DS Speed Increase Electric Club Car
Speed increase on a '99 Gas EZGO


All times are GMT -5. The time now is 07:55 PM.


Club Car Electric | EZGO Electric | Lifted Golf Carts | Gas EZGO | Used Golf Carts and Parts

Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.