yamaha g1 runs weird

ken edgar · 12-18-2014, 04:51 PM

Gas g1 90 pounds compression-new crank seals both sides=good fuel pump-starts hard with choke. runs ok 100ft then craps out. hard start then ANOTHER 100 FT. when it quits it seems to want to start. Had carb apart seems ok needle and seat fine,Reed valve seems ok. Any thoughts?

slonomo · 12-18-2014, 05:42 PM

Compression is low, but if it starts it should run. Sounds like it's running out of fuel. I'd take the fuel pump apart and clean it out, or replace it. If it's old, it's likely the culprit, they have a habit of getting clogged too. See the stickies at the top of the page.

Field6565 · 12-19-2014, 06:58 PM

What year is the cart? If it's an 82 then 90psi is fine. 82 was the oddball motor.

golfcartcare · 12-19-2014, 07:27 PM

Compression is low and the '82 was different(the cylinder used a smaller sized reed plate) but the specs are the same. Make sure there is no leak between the motor and the pump. If ok, I'd replace or rebuild the fuel pump. The gas should spurt out a good 3 to 4 inches. Just because a cart starts doesn't mean it's going to run properly. As you have found out. And as the other poster has remarked, bad crankcase seals allow junk to get into the motor, which find their way into the pump.

12-18-2014, 04:51 PM	#1
ken edgar Not Yet Wild Join Date: Dec 2014 Posts: 1	yamaha g1 runs weird Gas g1 90 pounds compression-new crank seals both sides=good fuel pump-starts hard with choke. runs ok 100ft then craps out. hard start then ANOTHER 100 FT. when it quits it seems to want to start. Had carb apart seems ok needle and seat fine,Reed valve seems ok. Any thoughts?
ken edgar Not Yet Wild Join Date: Dec 2014 Posts: 1

12-18-2014, 05:42 PM	#2
slonomo Searching for The Way Join Date: Oct 2009 Location: Medina, Ohio (NEOHIO) Posts: 11,432	Re: yamaha g1 runs weird Compression is low, but if it starts it should run. Sounds like it's running out of fuel. I'd take the fuel pump apart and clean it out, or replace it. If it's old, it's likely the culprit, they have a habit of getting clogged too. See the stickies at the top of the page.

12-19-2014, 06:58 PM	#3
Field6565 Gone Wild Join Date: Oct 2010 Location: Pittsburgh Pa Posts: 1,551	Re: yamaha g1 runs weird What year is the cart? If it's an 82 then 90psi is fine. 82 was the oddball motor.

12-19-2014, 07:27 PM	#4
golfcartcare Not Yet Wild Join Date: Dec 2014 Posts: 8	Re: yamaha g1 runs weird Compression is low and the '82 was different(the cylinder used a smaller sized reed plate) but the specs are the same. Make sure there is no leak between the motor and the pump. If ok, I'd replace or rebuild the fuel pump. The gas should spurt out a good 3 to 4 inches. Just because a cart starts doesn't mean it's going to run properly. As you have found out. And as the other poster has remarked, bad crankcase seals allow junk to get into the motor, which find their way into the pump.
golfcartcare Not Yet Wild Join Date: Dec 2014 Posts: 8

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

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
Yamaha g9 runs great for 18 then...	Gas Yamaha
Yamaha G16 runs then doesn't run	Gas Yamaha
o1 yamaha runs intermently	Electric Yamaha
Turns over weird, runs for 100yds then dies	Gas EZGO
g5 gas yamaha runs rough	Gas Yamaha