runs good cold but slower when hot

Jeff07 · 11-11-2013, 12:30 AM

Hello all, this is my first post but I've learned a ton from you all on this forum. here's my problem, my 97 EZGO runs great when I first start it (21MPH), but after 10 minutes or so I see a noticeable difference in the karts power (16MPH and a dog on inclines). I have a 352cc Robin, each cylinder has 150 psi (is that okay?) And, a white puff of smoke happens each time I first take off but no smoke afterwards. Not sure what that's about? Any advise here would be greatly appreciated!
Thanks,
Jeff

COURTESYCART · 11-12-2013, 09:18 AM

checked for clogged muffler.
valves adjusted correctly

rvkersh · 11-12-2013, 07:05 PM

Check the coil, you may be losing 1 cylinder when the coil gets hot. Tough to feel the cylinder miss because of the internal balance shaft. I also agree with valve adjustment, lash may be to little on a fully warmed up motor.

kgsc · 11-12-2013, 09:28 PM

Ditto on the valves. May be too tight when it warms up.

Jeff07 · 11-12-2013, 10:51 PM

Thanks everyone. I set the valves on a cold motor at.005, no change. How do diagnos a clogged muffler, and how would you fix it?

11-11-2013, 12:30 AM	#1
Jeff07 Not Yet Wild Join Date: Nov 2013 Location: So. Cal. Posts: 8	runs good cold but slower when hot Hello all, this is my first post but I've learned a ton from you all on this forum. here's my problem, my 97 EZGO runs great when I first start it (21MPH), but after 10 minutes or so I see a noticeable difference in the karts power (16MPH and a dog on inclines). I have a 352cc Robin, each cylinder has 150 psi (is that okay?) And, a white puff of smoke happens each time I first take off but no smoke afterwards. Not sure what that's about? Any advise here would be greatly appreciated! Thanks, Jeff

11-12-2013, 09:18 AM	#2
COURTESYCART Gone Wild Join Date: Nov 2008 Location: Montgomery, AL Posts: 1,463	Re: runs good cold but slower when hot checked for clogged muffler. valves adjusted correctly

11-12-2013, 07:05 PM	#3
rvkersh Gone Wild Join Date: Apr 2012 Location: Dansville, NY Posts: 396	Re: runs good cold but slower when hot Check the coil, you may be losing 1 cylinder when the coil gets hot. Tough to feel the cylinder miss because of the internal balance shaft. I also agree with valve adjustment, lash may be to little on a fully warmed up motor.

11-12-2013, 09:28 PM	#4
kgsc Gone Wild Join Date: Dec 2009 Location: Aiken, SC Posts: 13,188	Re: runs good cold but slower when hot Ditto on the valves. May be too tight when it warms up.

11-12-2013, 10:51 PM	#5
Jeff07 Not Yet Wild Join Date: Nov 2013 Location: So. Cal. Posts: 8	Re: runs good cold but slower when hot Thanks everyone. I set the valves on a cold motor at.005, no change. How do diagnos a clogged muffler, and how would you fix it?

Today
BGW	Sponsored Links __________________ This advertising will not be shown in this way to registered members. Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum

Similar Threads
Thread	Forum
97 ez gas occasionally lights get bright and runs slower	Gas EZGO
g14 runs slow when cold	Gas Yamaha
g16 runs good cold but not when hot	Gas Yamaha
runs good cold runs bad hot?	Gas EZGO
Runs great cold / Not so good Hot ?	Gas EZGO