g16 yamaha issues when engine gets hot

teee · 10-02-2017, 03:24 PM

Hello I have a 1996 g16 runs for 20 minutes or so then once it gets hot it will lose power, and by that I mean it will studder with pedal all the way down and hardly move this will come and go. If it sits for a while it will be ok but then the cycle starts again. I put spark tester on and ran it and once it started studdering i checked for spark and there was none so I put a new coil on and it still does it.

I have since:

Removed and cleaned choke

Replaced all fuel hoses

Replaced plug

Replaced fuel filter

Checked all wiring

Checked coil

Siphoned all gas from the tank and cleaned it.

Still having start stop issues

ANY THING ELSE THAT COULD BE CONTRIBUTING TO THIS ISSUE.

Thanks

Golf cart guy · 10-02-2017, 06:23 PM

Did you put an aftermarket coil on it? Those can be bad right out of the box.

If you put aftermarket, buy an OEM one and that will fix your problem

cgtech · 10-02-2017, 07:01 PM

Sounds alot like a TCI (coil) to me also.

teee · 10-02-2017, 07:07 PM

guy at camp ordered it. The price was 136.00 so i am would think it was OEM I Will find out for sure.

Golf cart guy · 10-02-2017, 08:55 PM

Quote:

Originally Posted by teee

guy at camp ordered it. The price was 136.00 so i am would think it was OEM I Will find out for sure.

Around me shady places buy the aftermarket part but sell it for close to OEM price

Dave in VA · 10-02-2017, 09:15 PM

OEM TCI is less than $80, plus shipping...

cgtech · 10-02-2017, 11:24 PM

Quote:

Originally Posted by Dave in VA

OEM TCI is less than $80, plus shipping...

Really, where? I need to be buying them where you are getting them.

Dave in VA · 10-03-2017, 09:49 AM

Boats.net, partzilla

sho305 · 10-03-2017, 08:51 PM

I thought G16 had a magneto coil and no ignitor? Sure sounds like ignition failure, maybe head gasket or something odd like that. Also get the shrouding off and make sure the cooling fins are not filled with dirt and such.

cgtech · 10-04-2017, 12:32 AM

Not for a G16 and newer (excluding FI). The whole ignition system is in the "coil" powered by the flywheel magnet. It always Sparks Everytime the flywheel passes by it. When working correctly, it will make spark no matter what, unless the blue and black wires are connected (to kill spark). It has no "ignition box" to set timing.

10-02-2017, 03:24 PM	#1
teee Not Yet Wild Join Date: Oct 2017 Posts: 9	g16 yamaha issues when engine gets hot Hello I have a 1996 g16 runs for 20 minutes or so then once it gets hot it will lose power, and by that I mean it will studder with pedal all the way down and hardly move this will come and go. If it sits for a while it will be ok but then the cycle starts again. I put spark tester on and ran it and once it started studdering i checked for spark and there was none so I put a new coil on and it still does it. I have since: Removed and cleaned choke Replaced all fuel hoses Replaced plug Replaced fuel filter Checked all wiring Checked coil Siphoned all gas from the tank and cleaned it. Still having start stop issues ANY THING ELSE THAT COULD BE CONTRIBUTING TO THIS ISSUE. Thanks
teee Not Yet Wild Join Date: Oct 2017 Posts: 9

10-02-2017, 06:23 PM	#2
Golf cart guy Gone Wild Join Date: May 2015 Location: Central Florida Posts: 2,114	Re: g16 yamaha issues when engine gets hot Did you put an aftermarket coil on it? Those can be bad right out of the box. If you put aftermarket, buy an OEM one and that will fix your problem

10-02-2017, 07:01 PM	#3
cgtech Over This Interview Is... Join Date: Jun 2012 Location: AZ Posts: 17,449	Re: g16 yamaha issues when engine gets hot Sounds alot like a TCI (coil) to me also.

10-02-2017, 07:07 PM	#4
teee Not Yet Wild Join Date: Oct 2017 Posts: 9	Re: g16 yamaha issues when engine gets hot guy at camp ordered it. The price was 136.00 so i am would think it was OEM I Will find out for sure.
teee Not Yet Wild Join Date: Oct 2017 Posts: 9

10-02-2017, 09:15 PM	#6
Dave in VA maintaining a low profile Join Date: Oct 2009 Location: SW Virginia USA Posts: 6,314	Re: g16 yamaha issues when engine gets hot OEM TCI is less than $80, plus shipping...

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

10-03-2017, 09:49 AM	#8
Dave in VA maintaining a low profile Join Date: Oct 2009 Location: SW Virginia USA Posts: 6,314	Re: g16 yamaha issues when engine gets hot Boats.net, partzilla

10-03-2017, 08:51 PM	#9
sho305 Vegas modded 420 Join Date: Jun 2009 Location: West MI Posts: 15,443	Re: g16 yamaha issues when engine gets hot I thought G16 had a magneto coil and no ignitor? Sure sounds like ignition failure, maybe head gasket or something odd like that. Also get the shrouding off and make sure the cooling fins are not filled with dirt and such.

10-04-2017, 12:32 AM	#10
cgtech Over This Interview Is... Join Date: Jun 2012 Location: AZ Posts: 17,449	Re: g16 yamaha issues when engine gets hot Not for a G16 and newer (excluding FI). The whole ignition system is in the "coil" powered by the flywheel magnet. It always Sparks Everytime the flywheel passes by it. When working correctly, it will make spark no matter what, unless the blue and black wires are connected (to kill spark). It has no "ignition box" to set timing.

Similar Threads
Thread	Forum
G1 w/ G16 Engine - Hot Starting Issues	Gas Yamaha
'85 Gas Club Car engine issues	Gas Club Car
Engine Issues	Gas EZGO
G2 engine issues	Gas Yamaha
G1 engine performance issues	Gas Yamaha