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Gas EZGO Gas EZGO Marathon, Medalist, TXT and RXV. |
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02-21-2016, 02:47 PM | #1 |
Not Yet Wild
Join Date: Dec 2015
Posts: 4
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81 marathon engine choice
just need a simple solution here, i have a gutted 81 marathon that was a gas model and i have an 11hp vanguard motor i would like to put in reverse isn't a problem just need it to work for now. I have made a cradle plate that is 1/4 steel so bolting anything should not be an issue. just looking for a simple solution or am i in to far? just going for a camp runner on dirt roads only.
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02-21-2016, 03:03 PM | #2 |
nimda
Join Date: Jun 2007
Posts: 13,022
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Re: 81 marathon engine choice
People do that all the time....well...I say that but its usually the later 2 stroke with the clutch parallel with the frame. Theres no reason it wont work unless it physically wont fit. You'll need FAB skills. Like you said you'll have no reverse UNLESS you get a later model 4 stroke gas rear transaxle.
I have also seen folks use an electric motor for reverse. You could find a golf cart starter/generator to do that. Fab up the brakets etc and have reverse. |
02-21-2016, 03:34 PM | #3 |
Not Yet Wild
Join Date: Dec 2015
Posts: 4
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Re: 81 marathon engine choice
so a simple jackshaft could work for rotation
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02-21-2016, 04:19 PM | #4 |
Gone Wild
Join Date: Apr 2015
Posts: 256
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Re: 81 marathon engine choice
For the proper rotation The clutches need to face forward. Pull start to the rear.
They sell on ebay the comet 30 series tav2 clutch set with mount. These use a small belt and it will eat them but you can get replacements about anywhere. Also small and do not have as wide a gear range. Pretty much a bolt on solution. You will need a small shaft and 2 u joints and couplers to attach it to you pinion. It you play with the engine mount alot and get the crank at the same angle as the pinion you could use a chain coupler. http://www.ebay.com/itm/GO-KART-TORQ...0AAMXQhpdRu8ep If you dont mind spending a little more upgrade to bigger clutches and bigger belts. Or use your old ones and fab up a bearing carrier ect. Stock drive clutch get a tapered shaft adapter from Vegas carts. Or put all the stock clutches in the original spots and place the engine on the right side and run a jackshaft to hold the drive clutch with a chain on the engine to the jackshaft. |
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