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Gas Yamaha Gas Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles |
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10-15-2015, 07:03 PM | #1 |
Not Yet Wild
Join Date: Oct 2015
Posts: 3
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G1 first startup questions (runs a little rough)
I just got the Yamaha G1 back from the rebuilder and threw it in the boys cart. it fired right up and runs pretty well but I don't think it sounds right. Im not a 2 stroke guy but it sounds like its missing every couple rounds when its not loaded or when its going slow for sure. it does not have a butterfly in the exhaust, that's been removed. I cooked the exhaust today as well to make sure it was clean. I just don't want to damage anything and the rebuilder (Burington)is out of town till the first of the week.
Questions: I cant get the carb adjustment screw to make any difference. took it apart and cleaned everything but it just does not seem to change anything running on the stand. I read that the butterfly was for low speed torque and sound, since that is gone does it make it sound a little more like a snow mobile? Not 100% sure anything is really wrong, never heard it run before the rebuild and its my first 2 stroke cart so who knows? I may try to take a video of it tonight and post it to see if it sounds ok. The kids are dying to ride it around and I hate to turn them loose until I know its right. I took the plug out after about 5 min running and its dry and dark-ish side of brown so I don't think its too lean. Any thoughts? |
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10-16-2015, 06:58 AM | #2 |
Not Yet Wild
Join Date: Oct 2015
Posts: 3
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Re: G1 first startup questions (runs a little rough)
s133.photobucket.com/user/Bigblockbandit/media/VID_20151015_201643597_zpsgvmwgeou.mp4.html?o=0
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10-16-2015, 12:42 PM | #3 |
It's Beer Time!
Join Date: Sep 2010
Location: Vineland, NJ
Posts: 1,462
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Re: G1 first startup questions (runs a little rough)
Although I've never owned a G1 I have had many 2 strokes in my collection. To me that sounds perfect. At low rpm's that's just how 2 strokes sound. Once you wind them up is when they develop power and the engine sounds very smooth at higher rpm's. In any of my 2 strokes I would be concerned if it (1) wouldn't idle and (2) if it would break up at high rpm's and you don't have any of that. So I think that engine sounds right on.
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10-18-2015, 10:42 AM | #4 |
Searching for The Way
Join Date: Oct 2009
Location: Medina, Ohio (NEOHIO)
Posts: 11,441
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Re: G1 first startup questions (runs a little rough)
Are you premixing the fuel? If so at what ratio? Too much oil will make it run lean....not enough fuel. I recommend disconnecting the oil pump and premix at 100:1 with a good high quality air cooled 2 cycle oil like Echo from Home Depot.
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