Purchased 90 marathon 2 stroke with ?s

stewmagoo · 04-28-2015, 07:04 PM

I purchased today an immaculate 90 marathon 2 stroke and I have some questions.

It has an aftermarket comet clutch and the oil has been bypassed and mixed directly in the fuel tank. What is the proper mix for this motor? The owner I think has it running way too rich. I would bet he has it weed eater mixed. 32 or 50 to 1. I pick this up tomorrow and want to drain out the existing and add new

Dave Box · 04-28-2015, 07:20 PM

128:1 which for your convenience is one gallon of gasoline to one ounce of oil. In addition you should not just pour the oil into the gas tank as strangely enough the oil does not readily mix with the gasoline. It is better to pour them into a gas can and shake vigorously to mix and then add to the gas tank.

Dave

stewmagoo · 04-28-2015, 07:54 PM

Dave thanks. That is the answer I was looking for. That fuel in there is almost black

stewmagoo · 04-29-2015, 07:04 PM

Well finally got it and mixed it the 100:1 way it should be but dang it's gonna take a while for all of that over richness to burn out and off. Good thing is I am killing the mosquitos early.

sccowboy · 04-30-2015, 07:31 AM

I heard that this oil could be helpful in lowering the amount of smoke:

http://www.redlineoil.com/Products.aspx?pcid=16

If that cart was run for a while with the mix that rich, you may want to consider a muffler BBQ.

stewmagoo · 04-30-2015, 10:33 AM

I have heard of the muffler BBQ procedure. Does anyone have a link on the procedure?

sccowboy · 04-30-2015, 11:06 AM

The basic procedure is to remove the muffler and build yourself a charcoal fire in a pit. Once you have a good bed of coals, put the muffler in it and cover it up. Let it cook until its glowing red and remove. After it cools off then you can bang on the sides and dump out all the cooked gunk that was inside. The idea is that the 2 stroke smoke over time leaves a buildup that clogs the exhaust flow thereby killing the performance, no power, etc. Cooking that crap out of there restores the flow.

alwhite00 · 04-30-2015, 11:09 AM

Nice looking cart.

stewmagoo · 05-01-2015, 05:14 AM

I may try this BBQ procedure. Or if I can stumble on a new muffler or aftermarket one I may replace it. Not a ton of aftermarket items for the motor that I can find. It does have a comet duster clutch on it. What exact motor is this and horsepower?

sccowboy · 05-01-2015, 06:46 AM

Should be the 3pg and I think 244cc.

04-28-2015, 07:04 PM	#1
stewmagoo Gone Wild Join Date: Oct 2009 Location: West Virginia Posts: 291	Purchased 90 marathon 2 stroke with ?s I purchased today an immaculate 90 marathon 2 stroke and I have some questions. It has an aftermarket comet clutch and the oil has been bypassed and mixed directly in the fuel tank. What is the proper mix for this motor? The owner I think has it running way too rich. I would bet he has it weed eater mixed. 32 or 50 to 1. I pick this up tomorrow and want to drain out the existing and add new

04-28-2015, 07:20 PM	#2
Dave Box Respect the Cart Join Date: May 2010 Location: Rocky Mount, Virginia Posts: 2,190	Re: Purchased 90 marathon 2 stroke with ?s 128:1 which for your convenience is one gallon of gasoline to one ounce of oil. In addition you should not just pour the oil into the gas tank as strangely enough the oil does not readily mix with the gasoline. It is better to pour them into a gas can and shake vigorously to mix and then add to the gas tank. Dave

04-30-2015, 07:31 AM	#5
sccowboy It ain't gonna be easy. Join Date: Apr 2008 Location: St. George, SC Posts: 1,480	Re: Purchased 90 marathon 2 stroke with ?s I heard that this oil could be helpful in lowering the amount of smoke: http://www.redlineoil.com/Products.aspx?pcid=16 If that cart was run for a while with the mix that rich, you may want to consider a muffler BBQ.

04-30-2015, 11:06 AM	#7
sccowboy It ain't gonna be easy. Join Date: Apr 2008 Location: St. George, SC Posts: 1,480	Re: Purchased 90 marathon 2 stroke with ?s The basic procedure is to remove the muffler and build yourself a charcoal fire in a pit. Once you have a good bed of coals, put the muffler in it and cover it up. Let it cook until its glowing red and remove. After it cools off then you can bang on the sides and dump out all the cooked gunk that was inside. The idea is that the 2 stroke smoke over time leaves a buildup that clogs the exhaust flow thereby killing the performance, no power, etc. Cooking that crap out of there restores the flow.

04-30-2015, 11:09 AM	#8
alwhite00 Gone Wild Join Date: Feb 2015 Location: Mi Posts: 492	Re: Purchased 90 marathon 2 stroke with ?s Nice looking cart.

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

04-28-2015, 07:54 PM	#3
stewmagoo Gone Wild Join Date: Oct 2009 Location: West Virginia Posts: 291	Dave thanks. That is the answer I was looking for. That fuel in there is almost black

04-29-2015, 07:04 PM	#4
stewmagoo Gone Wild Join Date: Oct 2009 Location: West Virginia Posts: 291	Well finally got it and mixed it the 100:1 way it should be but dang it's gonna take a while for all of that over richness to burn out and off. Good thing is I am killing the mosquitos early.

04-30-2015, 10:33 AM	#6
stewmagoo Gone Wild Join Date: Oct 2009 Location: West Virginia Posts: 291	I have heard of the muffler BBQ procedure. Does anyone have a link on the procedure?

05-01-2015, 05:14 AM	#9
stewmagoo Gone Wild Join Date: Oct 2009 Location: West Virginia Posts: 291	I may try this BBQ procedure. Or if I can stumble on a new muffler or aftermarket one I may replace it. Not a ton of aftermarket items for the motor that I can find. It does have a comet duster clutch on it. What exact motor is this and horsepower?

05-01-2015, 06:46 AM	#10
sccowboy It ain't gonna be easy. Join Date: Apr 2008 Location: St. George, SC Posts: 1,480	Re: Purchased 90 marathon 2 stroke with ?s Should be the 3pg and I think 244cc.

Similar Threads
Thread	Forum
EZGO Marathon - 4 stroke	Golf Carts and Parts
86 2 stroke marathon for sale	Golf Carts and Parts
Marathon 4 stroke	Gas EZGO
ez go marathon 4 stroke wont rev up	Gas EZGO
90 Marathon 2 Stroke	Gas EZGO