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Gas Yamaha Gas Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles |
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03-03-2015, 02:33 PM | #1 |
Not Yet Wild
Join Date: Oct 2014
Posts: 4
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Yamaha g1 takes to long to start
I have a yamaha g1 utility cart that I recently got running by replacing the fuel pump but the problem is that I have to choke it for about 30-45 seconds to get it started. I have read on here that muffler back can cause slow starting so I am planning a muffler bbq so I have the muffler off and I weighed it and is 25 pounds so I was wondering if that is a normal weight for it? I also hear that this could be the crank seals I was wondering what is the best way to test this? Also if you have any other thoughts on why this slow starting could be happening I would love to hear it! Thanks
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03-03-2015, 04:59 PM | #2 |
Gone Wild
Join Date: Jul 2008
Location: Reddick IL
Posts: 11,220
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Re: Yamaha g1 takes to long to start
Dirty low speed jets in the carb can cause hard starting.
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03-04-2015, 12:11 PM | #3 |
Gone Wild
Join Date: Aug 2012
Location: NE Ohio
Posts: 197
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Re: Yamaha g1 takes to long to start
My advice is do the crank seals. Ours ran well, but didn't want to start easily. Crank seals fixed it to the point the thing will now idle. Crank seals certainly won't hurt the performance, and likely need done anyway.
Also, a BBQ may help, along with the obvious tune up. |
03-05-2015, 08:21 AM | #4 |
Searching for The Way
Join Date: Oct 2009
Location: Medina, Ohio (NEOHIO)
Posts: 11,436
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Re: Yamaha g1 takes to long to start
The G1 is one of the simplest engines out there. The WILL run with low compression, just might be hard to start and low power. The best thing to do with a 2 stroke engine is remove it from the cart and rebuild it. If it's a cart that you want to be around for a long time, you'll be much happier. At that point you may also want to buy a new carb. The carb butterfly shaft is notorious for wearing out on these and will cause extra air to enter the carb, causing a lean condition, and hard starts and poor performance. It's not a cheap project, but if you want that baby to run properly, sometimes you have to pony up. I had two engines for mine, both ran, both ran poorly and started slow with low power. I decided to rebuild one, and man what a difference! Just a set of rings, a quick hone to deglaze the cylinder, a set of gaskets, new seals, and a new carb will go a long way for you. It's possible that just the seals will remedy the starting condition, but it also could be partly from the carb. But if you spend a couple hundred bucks on the rebuild parts you'll be glad you did.
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03-07-2015, 12:24 PM | #5 |
Vegas modded 420
Join Date: Jun 2009
Location: West MI
Posts: 15,443
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Re: Yamaha g1 takes to long to start
You can look for oil seeping from the crank seals first, you can spray carb cleaner/wd40 on them while running and see if it changes rpm. Have to take the shroud off to get to the flywheel side. 2 stroke only has compression half the stroke so good ring sealing is very important and why a rebuild of the top end is more important. It tends to be cheaper to rebuild than a 4 stroke. Cut the head some to make it run a little better than stock as stock compression is very low for substandard golf course fuel. G1 have good power but most are worn out, they run very nice when in proper order. Can also be piston damage and/or bad reeds causing this.
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