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Old 08-14-2009, 02:07 PM   #21
sabercat
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Default Re: Yamaha G9 build

Quote:
Originally Posted by dirtysouth View Post
Check the voltage across the entire pack.
lol
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Old 08-14-2009, 02:36 PM   #22
Alpo
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Default Re: Yamaha G9 build

I only cleaned the carb bowl, that's all. My uncle has a spark plug tester that clamps to the top of the plug and the wire plugs in the back end. NO SPARK! I also clamped it to the engine block. No fire is getting to the spark plug.

My uncle has a compression test kit and the compression is 170 psi.

Where do I go from here?
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Old 08-14-2009, 05:50 PM   #23
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Default Re: Yamaha G9 build

FOUND IT!!!

I got back out there this afternoon and put a voltage tester on the orange lead going to the ignition coil. I had 12 volts there when cranking, but no voltage to the spark plug. I started tracing wires backward and came across an unplugged wiring harness under the ignitor. Plugged it in and it fired right up!!

The cart hadn't ran in a few years and I haven't messed with the carb too much so it ran terrible for the first 10 minutes or so. After that, it started running better and better. I plan on getting the carb clean now.

The next step is new filters and a spark plug. I zip tied the govenor, but I think I'm going to bypass it.

Then, maybe, the fun stuff will begin.

Thank you very much for the help sabercat!
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Old 08-14-2009, 09:15 PM   #24
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Default Re: Yamaha G9 build

no problem! glad you found the issue. 170psi is great compression,only 5 psi off brand new. that means your engine has very little wear and tear on it which is good
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Old 08-17-2009, 11:58 AM   #25
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Default Re: Yamaha G9 build

Looks good
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Old 08-19-2009, 02:57 PM   #26
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Default Re: Yamaha G9 build

A little more progress as I wait on parts from 3R and CPP.

I did the governor bypass. It took about 15 - 20 minutes and I didn't hurry. After I rerouted the cable, I noticed that it was rubbing on the starter / generator belt. A tiny drilled hole and a zip tie fixed that.


I also rotated the accelerator pedal back toward the seat.


Lift kit and tires, HD shock springs and torque kit on order. I took off the stock rear strut springs too. Thankfully, they were removable! I wonder if anything I ordered will be here by Saturday?
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Old 08-19-2009, 04:07 PM   #27
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Default Re: Yamaha G9 build

Alpo nice pics and good tips, keep it up we love learning new tips.
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Old 08-19-2009, 08:07 PM   #28
sabercat
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Default Re: Yamaha G9 build

nice work! i also had to play with the petal position while bypassing my gov. the cable only has so much adjustment
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Old 08-20-2009, 07:14 AM   #29
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Default Re: Yamaha G9 build

Good job!! Keep the pics coming.

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Old 08-20-2009, 07:20 AM   #30
Alpo
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Default Re: Yamaha G9 build

Hey guys, I have a question. In the "Yamaha governor bypass" sticky thread a $30 tach is mentioned. Is there a brand of Analog tach for a single cylinder engine that I can buy for $30?? I've seen the Tiny Tach, but would rather have something Analog.
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