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Big Block Talk! Everything about swapping a big block engine into your cart! |
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06-04-2018, 06:50 PM | #1 |
Not Yet Wild
Join Date: Feb 2007
Posts: 12
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GX630 governor
I am so tired of my Club car Honda Big block set up in my eyes not running fast enough. Most rpms I can get out of it is 3500. Want them closer to 3700/3800. I can get them up in the 3800 but when I do that the rpms are to high at a stop and have to stand of the brakes to keep it from moving on its own when being stopped, and can’t get it in forward or reverse with out Turing it off.. So my BIG question does Anyone know how to adjust these rev limiters on the newer Honda Engines?
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06-04-2018, 09:25 PM | #2 |
Crazy Ole Man
Join Date: Jan 2016
Location: Owego NY
Posts: 2,758
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Re: GX630 governor
Depending on how new your engine is -- the rev limiter is electronic and built into the coils. There is no adjustment. You may have to replace the coils with ones that have no limiter built in. This is why most builders stay away from Honda v twins plus no aftermarket parts.
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06-05-2018, 11:31 PM | #3 |
Not Yet Wild
Join Date: Apr 2016
Location: Florida,JAX
Posts: 27
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Re: GX630 governor
Is the cable too short to keep it from returning to idle when tighten to get more rpm? The electrical governor is 3950-4050 rpm limit it will bounce when you hit that limot you want to set your mechanical governer just below this. There is a screw that ajusts the max rpm limit of the mechanical governer back it out till it turns the rpm where you want it to when the lever is pulled against it then there is a small spring that connects to the governer arm that sticks out the side opposite the oil filter remove the smallest spring it’s tiny. This will let it fall back to idle when the governed throttle arm is released. You may need to adjust the idle stop on the carb to get it to idle low enough 7-800 rpm usually. I can post pics if it would help.
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06-06-2018, 07:31 AM | #4 | |
Not Yet Wild
Join Date: Feb 2007
Posts: 12
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Re: GX630 governor
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06-06-2018, 07:32 AM | #5 | |
Not Yet Wild
Join Date: Feb 2007
Posts: 12
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Re: GX630 governor
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06-06-2018, 09:22 AM | #6 |
Crazy Ole Man
Join Date: Jan 2016
Location: Owego NY
Posts: 2,758
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Re: GX630 governor
If your able to do the work -- I would remove all the throttle linkage and hook the throttle cable directly to the carburetor. I've bought bicycle brake cable kits from like K Mart for 8-9 dollars. They have 4-5 cables in the pack. I've made 2 throttle cable setups from one kit. Use a spring to return the throttle to an idle. The setup would be like a car. It would eliminate half of the problem. Then the next stage would be to replace the coils if you can't get the rpm you want.
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06-06-2018, 02:59 PM | #7 |
Not Yet Wild
Join Date: Apr 2016
Location: Florida,JAX
Posts: 27
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Re: GX630 governor
The electronics in the ignition coils will ground out intermittently when you trace the max rpm just as newer cars do when redlined. This electronic governer will stop you from increasing rpm past 4000 regardless of throttle position and or mechanical governer. So the “Honda rev limiter” has no effect on the problem unless exceeding 4000 rpm.
I include a pic of the side of the motor where the mechanical governer and throttle linkage all connects. On top where the carb is should be as it came factory. Can post pics of that too if you have modified the linkages. |
06-06-2018, 03:25 PM | #8 | |
Crazy Ole Man
Join Date: Jan 2016
Location: Owego NY
Posts: 2,758
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Re: GX630 governor
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06-06-2018, 05:59 PM | #9 | |
Gone Wild
Join Date: Sep 2011
Location: ARIZONA
Posts: 476
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Re: GX630 governor
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Part number is: 30500-Z5K-801 This is the newer coil same as the GX630 that require 12v to run. Oem Honda part. Should fit and work as normal. I have used newer GX390 coils on the GX690, but had to replace the plug wire with a longer one. Technical manuals for both engines below. https://drive.google.com/open?id=14D...G4RfjplRMhj3kh https://drive.google.com/open?id=1Q2...LNmOtocbgtGYj_ |
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06-06-2018, 06:48 PM | #10 | |
Not Yet Wild
Join Date: Feb 2007
Posts: 12
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Re: GX630 governor
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