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| Gas Yamaha Gas Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles |
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07-15-2019, 03:47 PM
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#1 |
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Not Yet Wild
Join Date: Jul 2019
Posts: 2
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2003 G22 has "0" compression??
Hi Everyone,
I have a Gas 2003 yamaha G22 that i bought a few years back. It didn't run well at all when I first got (died out while driving intermitently) it. I replaced the fuel pump, some of the fuel/vac lines that were dryrotted and replaced the carb.. After this it ran really well for about an hour, Hasn't started since and that was about a year ago. I realized I wasn't getting any fuel to the carb. I pulled the vac. line off the fuel pump and hit gas pedal so it would spin over, doesn't feel like theres any vac. I then tried a cylinder compression test and it didn't even move the needle on gauge. I will also say the oil level is/was low (barely into the crosshatching on dipstick). Any help or advice greatly appreciated. I have a video of what its doing also If that may help anyone determine the cause. Thanks, Paul Osipoff |
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07-15-2019, 04:16 PM
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#2 |
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maintaining a low profile
 Join Date: Oct 2009
Location: SW Virginia USA
Posts: 6,314
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Re: 2003 G22 has "0" compression??
Did you check compression with wide open throttle?
Blow backwards thru the pulse line--it may be clogged. |
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07-15-2019, 05:40 PM
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#3 |
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Not Yet Wild
Join Date: Jul 2019
Posts: 2
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Re: 2003 G22 has "0" compression??
yes sir on the "wide open throttle". where is the pulse line, im not familiar? thanks for your help
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07-15-2019, 05:59 PM
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#4 |
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VC 460 CLONE GONE WILD
Join Date: Oct 2014
Location: Ray BY The Bay NJ
Posts: 10,633
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Re: 2003 G22 has "0" compression??
Certainly the next thing is to pull the valve cover and check lash and proper valve movement.
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07-15-2019, 08:30 PM
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#5 |
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Nincompoop village idiot
Join Date: Apr 2018
Location: Michigan
Posts: 9,673
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Re: 2003 G22 has "0" compression??
Make sure a rocker arm didnt fall out. Or make sure valve lash isn't excessively tight. If the valves are too tight, they don't close all the way and you'll have no compression.
I would put it at TDC and do a leak down test. |
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07-16-2019, 06:03 AM
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#6 | |
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maintaining a low profile
Join Date: Oct 2009
Location: SW Virginia USA
Posts: 6,314
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Re: 2003 G22 has "0" compression??
Quote:
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