98 Yamaha G16 smoking

Nighthawk42472 · 07-24-2018, 09:24 PM

98 Yamaha G16 fuel pump went out and filled crank case with gas. I replaced pump drained everything and put fresh oil in it and ran it for a while and changed oil again. No problems for a while now it runs good but starts smoking as soon as it starts I checked compression and have 170lbs. Does anyone have ideas on what I need to do

cgtech · 07-25-2018, 10:00 PM

Check the airbox for any oil/gas mix. Drive the hell out of it for 15 minutes. Give it the "Italian tune up". If it doesn't clear up, one or more of your rings were destroyed when the fuel was washing the oil off the cylinder walls.

Nighthawk42472 · 07-26-2018, 10:11 AM

There is no oil in the air box and I ran the cart for about a month after the gas getting in the crank case before it started smoking. Could it possibly be the valve guides or a valve seal cause with the compression being at 170lbs I can’t imagine that the rings are bad unless it’s just the oil ring

Spicyunicorn · 07-26-2018, 01:06 PM

Oil rings are notorious for going before you loose compression on golf carts

cgtech · 07-26-2018, 07:02 PM

The top end on a Yamaha gets very minimal oil anyway, there isn't much oil up there to get eaten by the motor.

Nighthawk42472 · 07-26-2018, 11:38 PM

Ok thx does anyone happen to know the torque specs or any other specs I might need for when I tear apart the motor to replace the rings

07-24-2018, 09:24 PM	#1
Nighthawk42472 Not Yet Wild Join Date: Mar 2014 Posts: 5	98 Yamaha G16 smoking 98 Yamaha G16 fuel pump went out and filled crank case with gas. I replaced pump drained everything and put fresh oil in it and ran it for a while and changed oil again. No problems for a while now it runs good but starts smoking as soon as it starts I checked compression and have 170lbs. Does anyone have ideas on what I need to do
Nighthawk42472 Not Yet Wild Join Date: Mar 2014 Posts: 5

07-25-2018, 10:00 PM	#2
cgtech Over This Interview Is... Join Date: Jun 2012 Location: AZ Posts: 17,449	Re: 98 Yamaha G16 smoking Check the airbox for any oil/gas mix. Drive the hell out of it for 15 minutes. Give it the "Italian tune up". If it doesn't clear up, one or more of your rings were destroyed when the fuel was washing the oil off the cylinder walls.

07-26-2018, 10:11 AM	#3
Nighthawk42472 Not Yet Wild Join Date: Mar 2014 Posts: 5	Re: 98 Yamaha G16 smoking There is no oil in the air box and I ran the cart for about a month after the gas getting in the crank case before it started smoking. Could it possibly be the valve guides or a valve seal cause with the compression being at 170lbs I can’t imagine that the rings are bad unless it’s just the oil ring
Nighthawk42472 Not Yet Wild Join Date: Mar 2014 Posts: 5

07-26-2018, 01:06 PM	#4
Spicyunicorn Gone Wild Join Date: Jun 2015 Location: NW Iowa Posts: 1,669	Re: 98 Yamaha G16 smoking Oil rings are notorious for going before you loose compression on golf carts

07-26-2018, 07:02 PM	#5
cgtech Over This Interview Is... Join Date: Jun 2012 Location: AZ Posts: 17,449	Re: 98 Yamaha G16 smoking The top end on a Yamaha gets very minimal oil anyway, there isn't much oil up there to get eaten by the motor.

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

07-26-2018, 11:38 PM	#6
Nighthawk42472 Not Yet Wild Join Date: Mar 2014 Posts: 5	Re: 98 Yamaha G16 smoking Ok thx does anyone happen to know the torque specs or any other specs I might need for when I tear apart the motor to replace the rings
Nighthawk42472 Not Yet Wild Join Date: Mar 2014 Posts: 5

Similar Threads
Thread	Forum
G1 yamaha smoking	Gas Yamaha
yamaha g9 smoking	Gas Yamaha
03 yamaha smoking	Gas Yamaha
96 yamaha gas smoking	Gas Yamaha
smoking yamaha	Gas Yamaha