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05-05-2017, 07:39 PM
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#1 |
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Gone Wild
Join Date: Jul 2016
Location: West Salem, Ohio
Posts: 511
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G9 help
Okay my Yamaha buddies here, I need some help with this G9 cart I'm working on for a friend from the campgrounds. The cart was dead, it wouldn't even turn over.. he had hooked up a newer/different battery backwards.. I found that issue was the 10 amp fuse was blown. Cart still wouldn't start but was at least turning over. Things I have done so far are.. took out the fuel filter from the tank and put in an inline filter. I took carburetor to work and ran it through our ultrasonic cleaner and put back on.. I put in a new spark plug.. reset the valves, exhaust was pretty loose.. I have about 12.5 volts at the battery, cranking it doesn't drop below 11 volts.. I borrowed a compression tester from my buddy.. it only has 90 pounds of compression.. I am getting fuel, the plug is wet.. I have spark.. low compression, it acts like it wants to start but just won't hit and fire. Anyone got anything for me to try? Been thinking about swapping parts from my G2 until I get lucky, but really don't want to go to that extreme..
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05-06-2017, 05:47 AM
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#2 |
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Gone Wild
Join Date: Jul 2016
Location: West Salem, Ohio
Posts: 511
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Re: G9 help
cgtech..sho305..smallblock Dave.. you guys got anything for me? is there a min. amount of compression needed to fire a 4 stroke engine? I have read in here where people have 150# or more, I'm wondering if the ole girl is tired and worn out with just 90#
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05-06-2017, 06:50 AM
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#3 |
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Admin/Moderator
 Join Date: Dec 2006
Location: Ohio
Posts: 18,045
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Re: G9 help
I would check....oh wait, I'm not on the list...
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Ron
 PLEASE VISIT Our Sponsors * BGW GEAR The Store The G2 Project * Swing Arm Drop & Repair * Geep1 Project |
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05-06-2017, 06:51 AM
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#4 |
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Gone Wild
Join Date: Jul 2016
Location: West Salem, Ohio
Posts: 511
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Re: G9 help
Adding Ron thenewguy to the list..
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05-06-2017, 06:54 AM
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#5 |
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Admin/Moderator
Join Date: Dec 2006
Location: Ohio
Posts: 18,045
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Re: G9 help
  Check the battery ground cable, clean and good condition both ends. |
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Ron
PLEASE VISIT Our Sponsors * BGW GEAR The Store The G2 Project * Swing Arm Drop & Repair * Geep1 Project |
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05-06-2017, 07:15 AM
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#6 |
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Gone Wild
Join Date: Jul 2016
Location: West Salem, Ohio
Posts: 511
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Re: G9 help
Both cables have been removed and cleaned at both ends..
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05-06-2017, 09:13 AM
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#7 |
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Sometime's............
Join Date: Oct 2007
Location: Tacoma Washington
Posts: 11,874
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Re: G9 help
Did you do the compression check at wide open throttle? Crank the engine over while choking, then pull the spark plug and see if it's wet. Get a dynamic spark tester and check for spark. Then let us know what you found.
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05-06-2017, 10:51 AM
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#8 |
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Gone Wild
Join Date: Jul 2016
Location: West Salem, Ohio
Posts: 511
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Re: G9 help
Hopefully I don't need the one from Yamaha for over $300
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05-06-2017, 10:52 AM
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#9 |
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Gone Wild
Join Date: Jul 2016
Location: West Salem, Ohio
Posts: 511
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Re: G9 help
My post didn't post.. Yes did the compression check wide open.. and the plug is wet for sure..
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05-06-2017, 10:56 AM
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#10 | |
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Sometime's............
Join Date: Oct 2007
Location: Tacoma Washington
Posts: 11,874
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Re: G9 help
Quote:
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Linear Mode
