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Old 10-21-2008, 05:18 PM   #1
mrfixitat
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Default robin 244cc engine spec's

1976 - 1988 244cc robin engine spec's
stock bore 72mm = 2.8350" to 2.8357" and piston dia. 2.8321" to 2.8327"
stock stroke 60mm = 2.3622" piston to bore clearance = .004" to .007"
ring end gap = .010" to .016" spark plug gap = .028" to .035"
points new = .015" used = .013" clyinder nuts = 24 to 28 ft. lbs.
head bolts = 20 to 22 ft lbs.
oil mix = 1.5 oz to 1 gal.
the bore and stroke came from vintage golf carts and the rest off of this forum so if there is a mistake i can blame it on you guys. mrfixitat
ps vintage carts was the only supplier out of about 5-7 that i asked that could give me the bore & stroke a few didn't even respond to my question. so much for the suppliers!!!!
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Old 07-31-2011, 07:31 PM   #2
83marathon
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Default Re: robin 244cc engine spec's

Does anyone know:
1. what hp this engine is
2. what compression would be "good" and what would be "bad" requiring rebuild?

THANKS for any help.
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Old 07-31-2011, 11:51 PM   #3
racin161
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Default Re: robin 244cc engine spec's

9hp. 120 is good below say 90 it's on its way out 2 cycles likes compression.
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Old 08-01-2011, 07:32 AM   #4
83marathon
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Talking Re: robin 244cc engine spec's

Thanks!! Pulling 110+ so looks good. Some
One unhooked the governor
And it won't go up hills, flies on flat
Ground. Should I try and figure out
Hooking up governor back for
Hill
Results???? Thanks again.
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Old 08-01-2011, 09:25 AM   #5
BrewCityMusic
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Default Re: robin 244cc engine spec's

the governor really only limits the top end RPM's, so if you're getting the RPM's to "fly" on level ground, then you need to look at your clutches as a potential trouble spot (IE not opening or closing - downshifting - correctly) when climbing hills ... Clutches are funny (or perhaps frustrating is a better word) in that they often still work in the directions needed to gear "up" for speed when they are weakening and won't do as well for power or gearing "down" - it has a lot to do with the associated RPM's that the driven (axle) clutch is subject to in either extreme of operation as a rule of thumb, but neither clutch can immediately be ruled out.

HOWEVER - before depression sets in, you may want to check your belt for undue wear or stretching, it's also a possibility that it's maintaining the required tension to go fast (which translates into a lighter load on it) but is slipping under load due to stretching or on the other extreme binding under load due to wear and not allowing your clutches to function properly.

Were it me, I'd pop $30 for a new belt if yours looks worn at the edges or if you can roll it off the clutches fairly easily (it should be a minor struggle but still fairly easy) - in many cases where clutches are going you can diagnose it by jacking the cart and watching them as you run it, but if they are doing fine on the flats and only failint to work correctly on the hills then confirming the diagnosis is a bit harder.

Perhaps Dave can jump in and shed some light here - he may have a trick up his sleeve to streamline the diagnostics
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Old 08-01-2011, 07:10 PM   #6
83marathon
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Default Re: robin 244cc engine spec's

Let's hope I can get lucky here. I rolled/pulled the belt off with 4 fingers! That being the case I'll opt for a new belt. Any place to BUY or a model # as since this thing is old I don't have a clue of part #, compatible parts ,etc. 83 Marathon 3 wheeler/trike. Gas, obviously.

While we're at it any models that a Canopy TOP and Brackets would cross refer on this unit. Thanks Guys. I really appreciate it.
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Old 01-29-2012, 01:21 PM   #7
michaeldeats
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Default Re: robin 244cc engine spec's

i looking for a rebuild kit for a 1988 ezgo robin 244cc and how would it cost
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Old 09-03-2017, 01:13 AM   #8
josephmbrandtii
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Default Re: robin 244cc engine spec's

Cant find any rebuilds for 1978 ezgo with robin ec25ds 244cc
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Old 09-03-2017, 03:53 PM   #9
astronaughtzi@yahoo.com
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Default Re: robin 244cc engine spec's

Quote:
Originally Posted by michaeldeats View Post
i looking for a rebuild kit for a 1988 ezgo robin 244cc and how would it cost
I just did the top and bottom end on mine for $370
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Old 02-13-2018, 03:01 PM   #10
jayp1017
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Default Re: robin 244cc engine spec's

^^^same $370 for top and bottom...thanks to EBAY! BAD NEWS...there was 29 available...I bought the last one!!! FYI everything was great except the jug...lots of slag in the exhaust ports (probably from china) No problem tho I used the dremmel and cleaned her up.
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