1994 Gas EZ GO with 2 Straoke 500CC Polaris Motor Need Exhaust Awnsers

osen007 · 02-19-2009, 06:12 PM

I new to this site as of 2/18/2009 I have a 1994 easy go with a liquid cooled 500 cc snowmobile engine, I have to add reverse so I bought a 4 stroke rear end. And adding electric start so I bought a clutch with a ring gear and a starter. So my question is exhaust.... Mine has a snowmobile tuned pipe on it now and It is way to loud because it dosn't start moving untill 4000 rpm.... What are your thoughts of taking that muffler off and adding a straight pipe to a car muffler with a smaller opening out the tail pipe to create back pressure?

rusty · 02-21-2009, 02:26 PM

Hello osen007 and Welcome to the forum.

groundpounder · 02-21-2009, 08:23 PM

not sure but if you do do this. let us know how it works because i would like to know to.

Subarumouse · 02-22-2009, 01:19 PM

Hello Osen,

A 2 stroke needs backpressure!
If you mess withe the standart exhoust, you almost for sure get a bad running engine!
Also don't change the header, the length is messured out to the engine.
Get a extra exhoust at the end off the standart exhoust like it is done one much racekartengines like a rotax max and shifters.

Your only concern than is: take one with at least the same opening as the end of the standart exhoust, so don't build up extra backpressure!

I have seen this problems on a racecart wit a Yamaha 350 YPVS with a 180 thegree turned cylinderblock!

Benno

02-19-2009, 06:12 PM	#1
osen007 Not Yet Wild Join Date: Feb 2009 Location: St Clair Shores Michigan Posts: 12	1994 Gas EZ GO with 2 Straoke 500CC Polaris Motor Need Exhaust Awnsers I new to this site as of 2/18/2009 I have a 1994 easy go with a liquid cooled 500 cc snowmobile engine, I have to add reverse so I bought a 4 stroke rear end. And adding electric start so I bought a clutch with a ring gear and a starter. So my question is exhaust.... Mine has a snowmobile tuned pipe on it now and It is way to loud because it dosn't start moving untill 4000 rpm.... What are your thoughts of taking that muffler off and adding a straight pipe to a car muffler with a smaller opening out the tail pipe to create back pressure?

02-21-2009, 02:26 PM	#2
rusty Golf Cart Photographer Join Date: Jan 2007 Location: Wichita Falls Texas - My Ride 2010 Club Car Posts: 6,236	Re: 1994 Gas EZ GO with 2 Straoke 500CC Polaris Motor Need Exhaust Awnsers Hello osen007 and Welcome to the forum.

02-21-2009, 08:23 PM	#3
groundpounder Gone Wild Join Date: Sep 2007 Location: maine Posts: 3,352	Re: 1994 Gas EZ GO with 2 Straoke 500CC Polaris Motor Need Exhaust Awnsers not sure but if you do do this. let us know how it works because i would like to know to.

02-22-2009, 01:19 PM	#4
Subarumouse Gone Wild Join Date: May 2008 Location: Netherlands (Europe) Posts: 170	Re: 1994 Gas EZ GO with 2 Straoke 500CC Polaris Motor Need Exhaust Awnsers Hello Osen, A 2 stroke needs backpressure! If you mess withe the standart exhoust, you almost for sure get a bad running engine! Also don't change the header, the length is messured out to the engine. Get a extra exhoust at the end off the standart exhoust like it is done one much racekartengines like a rotax max and shifters. Your only concern than is: take one with at least the same opening as the end of the standart exhoust, so don't build up extra backpressure! I have seen this problems on a racecart wit a Yamaha 350 YPVS with a 180 thegree turned cylinderblock! Benno

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