88 Marathon service Manual

Pepper64 · 08-12-2021, 01:58 PM

Hey Everyone ,
just picked up 88 Marathon and looking for a service manual . i need to rebuild engine , it needs a new carb , missing . how to adjust throttle cable and governor cable. is there a online down load somewhere ?? Thanks for any support !!!
Pepper 64

cart around · 08-12-2021, 03:04 PM

Post number 22. https://buggiesgonewild.com/showthre...=105501&page=3

Do yourself a favor, and buy a good carburetor. You will go through several of the 20 dollar carbs before you find a good one. I have never been to their website, but several people recommend Country Cat.

The 88 carburetor is the only year that is different. It has a vertical choke shaft, and is larger than the other 2pg 2 strokes. It is a Mikuni BV-24. That is a 24MM throat instead of 18MM like the rest.
Your muffler should have the exhaust inlet pipe attached to the top of the can instead of the side. Those mufflers are like gold. They are no longer available.

When you rebuild, make sure you replace the crankshaft seals, and install the piston with the side port facing the intake not the exhaust. That will save us a lot of future troubleshooting.

You adjust the governor with a pair of wire cutters by cutting it into tiny pieces, and throwing it away. Do the same thing with the oil injection, and premix your gas.

The first tankful after rebuild is mixed 40:1. After that the mix is 128:1.

EDIT: I don't think you will have any luck at Country Cat. I just checked their website. Maybe you could call them, and talk to a real person.

Dabble Inn · 08-13-2021, 10:43 AM

Quote:

You adjust the governor with a pair of wire cutters by cutting it into tiny pieces, and throwing it away.

Bwaa haha

Too funny......

Pepper64 · 08-13-2021, 01:22 PM

Thanks for all the great info... were you serious about governor ? do not need ?

Pepper64

cart around · 08-13-2021, 01:40 PM

The governor limits you to 12 mph. Without it, you can do a rip roaring 18 mph.

It's also one less cable to jam up the carburetor.

Dabble Inn · 08-13-2021, 02:14 PM

Ooops, sorry if my post was misleading

. The tiny little pieces thing made me giggle lol, But yes most all of us remove them. Mine will do 22mph now......

Pepper64 · 08-14-2021, 08:03 AM

Ok thanks, I was just checking. Will do I was hoping for more speed out of it, Thanks again everyone!!

Pepper64 · 08-14-2021, 08:05 AM

Is there anything special to do when unhooking oil pump? Or just cap lines?

cart around · 08-14-2021, 09:08 AM

Remove it all. The intake behind the carburetor takes a 6mm screw to plug it. Make it airtight.

Pepper64 · 08-14-2021, 03:16 PM

Thanks, I will update after rebuild. Thanks everyone!!!

08-12-2021, 01:58 PM	#1
Pepper64 Not Yet Wild Join Date: Aug 2020 Posts: 18	88 Marathon service Manual Hey Everyone , just picked up 88 Marathon and looking for a service manual . i need to rebuild engine , it needs a new carb , missing . how to adjust throttle cable and governor cable. is there a online down load somewhere ?? Thanks for any support !!! Pepper 64
Pepper64 Not Yet Wild Join Date: Aug 2020 Posts: 18

08-12-2021, 03:04 PM	#2
cart around Test before replacing Join Date: Aug 2013 Location: Ohio side of the Pennsylvania border. Posts: 3,496	Re: 88 Marathon service Manual Post number 22. https://buggiesgonewild.com/showthre...=105501&page=3 Do yourself a favor, and buy a good carburetor. You will go through several of the 20 dollar carbs before you find a good one. I have never been to their website, but several people recommend Country Cat. The 88 carburetor is the only year that is different. It has a vertical choke shaft, and is larger than the other 2pg 2 strokes. It is a Mikuni BV-24. That is a 24MM throat instead of 18MM like the rest. Your muffler should have the exhaust inlet pipe attached to the top of the can instead of the side. Those mufflers are like gold. They are no longer available. When you rebuild, make sure you replace the crankshaft seals, and install the piston with the side port facing the intake not the exhaust. That will save us a lot of future troubleshooting. You adjust the governor with a pair of wire cutters by cutting it into tiny pieces, and throwing it away. Do the same thing with the oil injection, and premix your gas. The first tankful after rebuild is mixed 40:1. After that the mix is 128:1. EDIT: I don't think you will have any luck at Country Cat. I just checked their website. Maybe you could call them, and talk to a real person.

08-13-2021, 01:22 PM	#4
Pepper64 Not Yet Wild Join Date: Aug 2020 Posts: 18	Re: 88 Marathon service Manual Thanks for all the great info... were you serious about governor ? do not need ? Pepper64
Pepper64 Not Yet Wild Join Date: Aug 2020 Posts: 18

08-13-2021, 01:40 PM	#5
cart around Test before replacing Join Date: Aug 2013 Location: Ohio side of the Pennsylvania border. Posts: 3,496	Re: 88 Marathon service Manual The governor limits you to 12 mph. Without it, you can do a rip roaring 18 mph. It's also one less cable to jam up the carburetor.

08-13-2021, 02:14 PM	#6
Dabble Inn Nincompoop Club Member Join Date: Jun 2016 Location: Idaho Posts: 1,178	Re: 88 Marathon service Manual Ooops, sorry if my post was misleading. The tiny little pieces thing made me giggle lol, But yes most all of us remove them. Mine will do 22mph now......

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08-14-2021, 08:03 AM	#7
Pepper64 Not Yet Wild Join Date: Aug 2020 Posts: 18	Re: 88 Marathon service Manual Ok thanks, I was just checking. Will do I was hoping for more speed out of it, Thanks again everyone!!
Pepper64 Not Yet Wild Join Date: Aug 2020 Posts: 18

08-14-2021, 08:05 AM	#8
Pepper64 Not Yet Wild Join Date: Aug 2020 Posts: 18	Re: 88 Marathon service Manual Is there anything special to do when unhooking oil pump? Or just cap lines?
Pepper64 Not Yet Wild Join Date: Aug 2020 Posts: 18

08-14-2021, 09:08 AM	#9
cart around Test before replacing Join Date: Aug 2013 Location: Ohio side of the Pennsylvania border. Posts: 3,496	Re: 88 Marathon service Manual Remove it all. The intake behind the carburetor takes a 6mm screw to plug it. Make it airtight.

08-14-2021, 03:16 PM	#10
Pepper64 Not Yet Wild Join Date: Aug 2020 Posts: 18	Re: 88 Marathon service Manual Thanks, I will update after rebuild. Thanks everyone!!!
Pepper64 Not Yet Wild Join Date: Aug 2020 Posts: 18

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