g-1 hard to start when warm

suchner · 08-11-2011, 10:21 AM

Hey anybody in the mood for a little trouble shooting? I have a G-1 that will start and run great when I first start her up but once she is warm(after driving around 10minutes) has a real hard time starting. I step on the gas and she just put puts for about 10-20 seconds and then gets going and runs great at full speed. But if you stop, it's put put time again. I checked the plug and it is black and furry. Compresion is 85 psi. Never have changed the fuel filter. I have a foam air cleaner, not original equipment. I think maybe she is running too rich. I sure would appreciate any thoughts, and how to test them out. Thanks Bill from Michigan.

DOOmsman · 08-11-2011, 10:48 AM

Compresion is 85 psi. Time to freshen up the engine.

caddylac camper · 08-14-2011, 09:00 PM

Black and furry means unburnt fuel. Normally this would mean a carb adjustment but with only 85 psi compression i agree with doomsman. You could try to lean out the carb to get you by for a while but in the end you will have to rebuild the engine.

bigstik40 · 08-14-2011, 09:21 PM

In the meantime, you could give it a new spark plug and clean the air cleaner and see how it goes. Might turn out to be the best $5 you ever spent

. Good luck - RAY

suchner · 08-15-2011, 07:39 AM

Hey , thanks for the great advice. I hate to think of putting new crankshaft seals in since I just finished doing it last year. I guess i didn' t do such a good job. I agree that the 80 psi is too low. I didn't ever check it after my first rebuild. It still is a mystery to me why it runs so good for the first 10 minutes but I will follow everyones advice and if the new plug, air cleaner and carb adjustment doesn't fix things guess I will have to rebuild her over the winter. Thanks again for your time and input.

rbahri5206 · 08-18-2011, 01:59 AM

i have the same problem ill drive around for a will and then its hard to start but i have good compression any ideas?

caddylac camper · 08-19-2011, 11:20 AM

If you have good compression i would look at carb adjustment and wear on the throttle shaft and crankshaft seals. One area that is harder to check is the float, if it is set too high it can cause flooding when the engine gets hot. A build up of dryed gas on the float can also cause a high fuel level in the float bowel.

08-11-2011, 10:21 AM	#1
suchner Not Yet Wild Join Date: Nov 2008 Location: michigan on a horse farm Posts: 25	g-1 hard to start when warm Hey anybody in the mood for a little trouble shooting? I have a G-1 that will start and run great when I first start her up but once she is warm(after driving around 10minutes) has a real hard time starting. I step on the gas and she just put puts for about 10-20 seconds and then gets going and runs great at full speed. But if you stop, it's put put time again. I checked the plug and it is black and furry. Compresion is 85 psi. Never have changed the fuel filter. I have a foam air cleaner, not original equipment. I think maybe she is running too rich. I sure would appreciate any thoughts, and how to test them out. Thanks Bill from Michigan.

08-11-2011, 10:48 AM	#2
DOOmsman Gone Wild Join Date: Jul 2008 Location: Reddick IL Posts: 11,220	Re: g-1 hard to start when warm Compresion is 85 psi. Time to freshen up the engine.

08-14-2011, 09:00 PM	#3
caddylac camper Gone Wild Join Date: Feb 2011 Location: Winnipeg, Manitoba Posts: 177	Re: g-1 hard to start when warm Black and furry means unburnt fuel. Normally this would mean a carb adjustment but with only 85 psi compression i agree with doomsman. You could try to lean out the carb to get you by for a while but in the end you will have to rebuild the engine.

08-14-2011, 09:21 PM	#4
bigstik40 Gone Wild Join Date: Sep 2010 Location: Erie, Pennsylvania Posts: 989	Re: g-1 hard to start when warm In the meantime, you could give it a new spark plug and clean the air cleaner and see how it goes. Might turn out to be the best $5 you ever spent. Good luck - RAY

08-15-2011, 07:39 AM	#5
suchner Not Yet Wild Join Date: Nov 2008 Location: michigan on a horse farm Posts: 25	Re: g-1 hard to start when warm Hey , thanks for the great advice. I hate to think of putting new crankshaft seals in since I just finished doing it last year. I guess i didn' t do such a good job. I agree that the 80 psi is too low. I didn't ever check it after my first rebuild. It still is a mystery to me why it runs so good for the first 10 minutes but I will follow everyones advice and if the new plug, air cleaner and carb adjustment doesn't fix things guess I will have to rebuild her over the winter. Thanks again for your time and input.

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08-18-2011, 01:59 AM	#6
rbahri5206 Not Yet Wild Join Date: Jul 2011 Posts: 36	Re: g-1 hard to start when warm i have the same problem ill drive around for a will and then its hard to start but i have good compression any ideas?
rbahri5206 Not Yet Wild Join Date: Jul 2011 Posts: 36

08-19-2011, 11:20 AM	#7
caddylac camper Gone Wild Join Date: Feb 2011 Location: Winnipeg, Manitoba Posts: 177	Re: g-1 hard to start when warm If you have good compression i would look at carb adjustment and wear on the throttle shaft and crankshaft seals. One area that is harder to check is the float, if it is set too high it can cause flooding when the engine gets hot. A build up of dryed gas on the float can also cause a high fuel level in the float bowel.

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