Marathon Engine Issues

CClark56 · 10-26-2011, 10:20 PM

Quote:

Originally Posted by 2strokesandsplat

One quick thing to do is pull of the exhaust and look up into the motor. If your piston looks like mine, you may as well forget the compression test and order your rebuild kit! Lol

Yeah no kiddin', I'll probably do that tomorrow. I'll have to lift up on the clutch too, see if it's got any play, hopefully not, that's a lot of money to get fixed. :(

2strokesandsplat · 10-26-2011, 10:31 PM

Well I hope you have better luck than me!

racin161 · 10-27-2011, 07:06 AM

2stroke your right ! the exhaust has to be removed to take the engine out so you've lost no time. By the way your piston SUCKS probably lack of oil at some point or a real lean mix and wide open throttle for a long period of time 3-4 miles

2strokesandsplat · 10-27-2011, 10:16 AM

Quote:

Originally Posted by racin161

2stroke your right ! the exhaust has to be removed to take the engine out so you've lost no time. By the way your piston SUCKS probably lack of oil at some point or a real lean mix and wide open throttle for a long period of time 3-4 miles

Sucks is right!! I'm guessing it was the oil injection system. That is why I plan to remove it when I do the rebuild. I do have a question about the drivetrain. (I'm sure the answer is on the forum somewhere but I can't locate it). The carb has 3 cables running to the throttle side of it. 1 is the gas pedal cable, one is the oil injection system, but what is the other device? I followed the cable down to the drivers side of the cart. It is connected to a lever that when the accelerator is push it extends the arm away from the drive system. When the accelerator is off, the arm goes back to touch the plastic cap on the drive system. Am I missing a part?

Grinds6 · 10-27-2011, 10:33 AM

Thats the governor. Sounds like yours has been disengaged, and by the sounds of it you are missing the button that holds the arm to the cap.

2strokesandsplat · 10-27-2011, 11:15 AM

So the cap is supposed to be attached to that arm in some form or fashion? I'll post pic in a few

ScooterMcTavish · 10-27-2011, 12:24 PM

Hey 2stroke,

Welcome here. I went through the same rebuild process on my '93 earlier this year and got some great help from members on the forum. My Thread is here:

http://www.buggiesgonewild.com/gas-e...s-rebuild.html

Possibly a read through might get you all prepped up for you're looking at.

Have fun. And BTW, BBQ the muffler when you have it off.

2strokesandsplat · 10-27-2011, 03:35 PM

Thank! I'll give it read!

My muffler is solid rust...I'm afraid if I bake it it will just fall apart. Probably going to have to get a new one.

2strokesandsplat · 10-27-2011, 10:45 PM

Got the motor pulled, tires repaired, and the body plastic pulled. Good work tonight!!!

racin161 · 10-28-2011, 06:47 AM

2 Stroke most of us has removed the governor but be careful not to let some one use it that is not aware of its potential 5000 rpms and below. That said I removed mine and made a simple throttle stop so when the granddaughter is riding she can press the throttle pedal as far as she can but can't over rev. She has no fear and now is in Quarter Midgets so maybe the cart will be spared

10-26-2011, 10:31 PM	#12
2strokesandsplat Not Yet Wild Join Date: Oct 2011 Location: OKC Posts: 16	Re: Marathon Engine Issues Well I hope you have better luck than me!

10-27-2011, 07:06 AM	#13
racin161 Gone Wild Join Date: Feb 2011 Posts: 1,515	Re: Marathon Engine Issues 2stroke your right ! the exhaust has to be removed to take the engine out so you've lost no time. By the way your piston SUCKS probably lack of oil at some point or a real lean mix and wide open throttle for a long period of time 3-4 miles
racin161 Gone Wild Join Date: Feb 2011 Posts: 1,515

10-27-2011, 10:33 AM	#15
Grinds6 Gone Wild Join Date: Sep 2011 Location: North Dakota Posts: 178	Re: Marathon Engine Issues Thats the governor. Sounds like yours has been disengaged, and by the sounds of it you are missing the button that holds the arm to the cap.

10-27-2011, 11:15 AM	#16
2strokesandsplat Not Yet Wild Join Date: Oct 2011 Location: OKC Posts: 16	Re: Marathon Engine Issues So the cap is supposed to be attached to that arm in some form or fashion? I'll post pic in a few

10-27-2011, 12:24 PM	#17
ScooterMcTavish Gone Wild Join Date: Oct 2009 Location: Manitoba, Canada Posts: 363	Re: Marathon Engine Issues Hey 2stroke, Welcome here. I went through the same rebuild process on my '93 earlier this year and got some great help from members on the forum. My Thread is here: http://www.buggiesgonewild.com/gas-e...s-rebuild.html Possibly a read through might get you all prepped up for you're looking at. Have fun. And BTW, BBQ the muffler when you have it off.

Today
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10-27-2011, 03:35 PM	#18
2strokesandsplat Not Yet Wild Join Date: Oct 2011 Location: OKC Posts: 16	Re: Marathon Engine Issues Thank! I'll give it read! My muffler is solid rust...I'm afraid if I bake it it will just fall apart. Probably going to have to get a new one.

10-28-2011, 06:47 AM	#20
racin161 Gone Wild Join Date: Feb 2011 Posts: 1,515	Re: Marathon Engine Issues 2 Stroke most of us has removed the governor but be careful not to let some one use it that is not aware of its potential 5000 rpms and below. That said I removed mine and made a simple throttle stop so when the granddaughter is riding she can press the throttle pedal as far as she can but can't over rev. She has no fear and now is in Quarter Midgets so maybe the cart will be spared
racin161 Gone Wild Join Date: Feb 2011 Posts: 1,515

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