Hard starting Yamaha G1

hotbike · 11-28-2011, 06:03 PM

Hey all
I have a yamaha G1 that is hard to start and have to run it with choke barly
pulled out and if you choke it by hand it kinda feels like it is pushing air out carb any ideas on what the problem could be

Field6565 · 11-28-2011, 06:51 PM

How old are the crank seals? Having to run it with the choke pulled is a good indication they are leaking. Welcome to the site!

hotbike · 11-28-2011, 08:47 PM

thanks
i have no idea how old the seals are is there anyway to check them

Field6565 · 11-28-2011, 09:56 PM

Check and see if there is any oil leaking behind the clutch or below the flywheel. It could be minor and look like a build up of oily sludge or dampness. This is a common problem with these motors.

ME2008 · 11-30-2011, 09:19 AM

My G1 took a while to start with the choke all the way out. It would run ok after it warmed up without using the choke. I decided to go ahead and have the seals replaced and now it starts right up.

ic746 · 12-03-2011, 04:23 AM

Here is a web page of mine that I made with plenty of pics to maybe help you figure out how to replace the oil seal on the clutch side, sorry the other side of my engine was good so I didn't take any pics of that. Hope this helps.
http://home.comcast.net/~calvinsworld/G1%204.html

GMB74 · 12-03-2011, 07:41 PM

Link to fan side seal replacement:

http://www.buggiesgonewild.com/gas-y...-fan-side.html

11-28-2011, 06:03 PM	#1
hotbike Not Yet Wild Join Date: Aug 2011 Posts: 11	Hard starting Yamaha G1 Hey all I have a yamaha G1 that is hard to start and have to run it with choke barly pulled out and if you choke it by hand it kinda feels like it is pushing air out carb any ideas on what the problem could be
hotbike Not Yet Wild Join Date: Aug 2011 Posts: 11

11-28-2011, 06:51 PM	#2
Field6565 Gone Wild Join Date: Oct 2010 Location: Pittsburgh Pa Posts: 1,551	Re: Hard starting Yamaha G1 How old are the crank seals? Having to run it with the choke pulled is a good indication they are leaking. Welcome to the site!

11-28-2011, 08:47 PM	#3
hotbike Not Yet Wild Join Date: Aug 2011 Posts: 11	Re: Hard starting Yamaha G1 thanks i have no idea how old the seals are is there anyway to check them
hotbike Not Yet Wild Join Date: Aug 2011 Posts: 11

11-28-2011, 09:56 PM	#4
Field6565 Gone Wild Join Date: Oct 2010 Location: Pittsburgh Pa Posts: 1,551	Re: Hard starting Yamaha G1 Check and see if there is any oil leaking behind the clutch or below the flywheel. It could be minor and look like a build up of oily sludge or dampness. This is a common problem with these motors.

11-30-2011, 09:19 AM	#5
ME2008 Not Yet Wild Join Date: Aug 2011 Location: Lebanon, Missouri Posts: 38	Re: Hard starting Yamaha G1 My G1 took a while to start with the choke all the way out. It would run ok after it warmed up without using the choke. I decided to go ahead and have the seals replaced and now it starts right up.

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12-03-2011, 04:23 AM	#6
ic746 Gone Wild Join Date: Nov 2007 Location: Martinsburg, WV Posts: 651	Re: Hard starting Yamaha G1 Here is a web page of mine that I made with plenty of pics to maybe help you figure out how to replace the oil seal on the clutch side, sorry the other side of my engine was good so I didn't take any pics of that. Hope this helps. http://home.comcast.net/~calvinsworld/G1%204.html

12-03-2011, 07:41 PM	#7
GMB74 Gone Wild Join Date: Jun 2009 Location: Heluvabump,VT Posts: 623	Re: Hard starting Yamaha G1 Link to fan side seal replacement: http://www.buggiesgonewild.com/gas-y...-fan-side.html

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