Polaris engine swap?

Tonka329 · 01-01-2011, 10:44 AM

Just dropping in to see if anyone has swapped out a Polaris engine into a Yammi cart? I have thought about doing this for the past couple weeks

Any ideas, mounting or engine size input would be great!

Tonka329 · 01-01-2011, 06:20 PM

DOOmsman · 01-02-2011, 12:05 PM

Happy new year Tonka, I think a 440/500 cc fan cooled
would make a great engine swap. keep in mind a sled engine
makes its peak horsepower at higher rpms.

Tonka329 · 01-02-2011, 01:18 PM

Heppy new year to you also! I should have clarified, I am going to look of a 4 stroke ATV engine... My fault!

AirJunky · 01-02-2011, 02:08 PM

You thinking of using the cart or ATV rear diff/suspension?

Tonka329 · 01-02-2011, 04:39 PM

That I have not decided... I think I will be going with the Allsports 7" lift or the Jakes long travel... Just looking for a motor and all electrical components for now

AirJunky · 01-03-2011, 01:20 AM

I think Allsports sells lift blocks for the rear in their lift kits. And Jakes may do that too. That type of lift definitely works. But it's not much of an improvement over the stock cart's ride..... just a bit higher. This is why you see guys in here building 3 & 4 link rear suspensions so often.

If you check the various build threads in here, most guys have to revise the engine mount &/or rear swingarm on their carts to accommodate the new engine. They have to buy & fit clutches in there. And they have to design it so the two clutches align correctly. Probably no exception when using a Polaris engine.

Many ATV engines will have their clutch assemblies protected inside a cover. Or they might be shaft drive. The rear suspension may be independent (which may be better for soaking up bumps than a swingarm).

I've been thinking that the engine, transaxle & swingarm assembly from an 80s Honda Big Red 3 wheeler might be a good setup in a cart. Their tough as nails, readily available for under $500. 250 cc engine that parts are easy to come by. 4 or 5 speed transmission. Automatic or manual available. Shaft drive so no clutches to deal with. Similar swingarm & rear diff as a cart. Looks like they are around 44" wide.... might be able to use spacers or a different offset wheel to get to the 48" - 50" these carts have.

I haven't gotten a chance to really look at a 3 wheeler. But saw someone ask about it in another thread & the more I dig into it online, the better it sounds. Plus they do almost 40 mph in stock condition.

jondeere_91 · 11-28-2011, 01:46 PM

i need some help with mounting my 440 in my cart i cant figure out the belt the motor turns one way an the axle turns the opisit way. anyone have a solution that will help me?

DOOmsman · 11-28-2011, 01:53 PM

Jondeere look in big block threads and a ton of information about ccw and cw engine swaps.

regalrcr · 01-21-2012, 10:39 PM

putting a 400 sportsman 2003 in my yammi g16 now.down to the harness now,and its a beast.cant get it to fire yet.

01-01-2011, 10:44 AM	#1
Tonka329 Smoov az a gravy sammich Join Date: Oct 2008 Location: Limestone, Illinois Posts: 3,462	Polaris engine swap? Just dropping in to see if anyone has swapped out a Polaris engine into a Yammi cart? I have thought about doing this for the past couple weeks Any ideas, mounting or engine size input would be great!

01-01-2011, 06:20 PM	#2
Tonka329 Smoov az a gravy sammich Join Date: Oct 2008 Location: Limestone, Illinois Posts: 3,462	Re: Polaris engine swap? TTT

01-02-2011, 12:05 PM	#3
DOOmsman Gone Wild Join Date: Jul 2008 Location: Reddick IL Posts: 11,220	Re: Polaris engine swap? Happy new year Tonka, I think a 440/500 cc fan cooled would make a great engine swap. keep in mind a sled engine makes its peak horsepower at higher rpms.

01-02-2011, 01:18 PM	#4
Tonka329 Smoov az a gravy sammich Join Date: Oct 2008 Location: Limestone, Illinois Posts: 3,462	Re: Polaris engine swap? Heppy new year to you also! I should have clarified, I am going to look of a 4 stroke ATV engine... My fault!

01-02-2011, 02:08 PM	#5
AirJunky Gone Wild Join Date: Jul 2009 Location: Liberty Lake, WA. Posts: 1,762	Re: Polaris engine swap? You thinking of using the cart or ATV rear diff/suspension?

Today
BGW	Sponsored Links __________________ This advertising will not be shown in this way to registered members. Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum

01-02-2011, 04:39 PM	#6
Tonka329 Smoov az a gravy sammich Join Date: Oct 2008 Location: Limestone, Illinois Posts: 3,462	Re: Polaris engine swap? That I have not decided... I think I will be going with the Allsports 7" lift or the Jakes long travel... Just looking for a motor and all electrical components for now

01-03-2011, 01:20 AM	#7
AirJunky Gone Wild Join Date: Jul 2009 Location: Liberty Lake, WA. Posts: 1,762	Re: Polaris engine swap? I think Allsports sells lift blocks for the rear in their lift kits. And Jakes may do that too. That type of lift definitely works. But it's not much of an improvement over the stock cart's ride..... just a bit higher. This is why you see guys in here building 3 & 4 link rear suspensions so often. If you check the various build threads in here, most guys have to revise the engine mount &/or rear swingarm on their carts to accommodate the new engine. They have to buy & fit clutches in there. And they have to design it so the two clutches align correctly. Probably no exception when using a Polaris engine. Many ATV engines will have their clutch assemblies protected inside a cover. Or they might be shaft drive. The rear suspension may be independent (which may be better for soaking up bumps than a swingarm). I've been thinking that the engine, transaxle & swingarm assembly from an 80s Honda Big Red 3 wheeler might be a good setup in a cart. Their tough as nails, readily available for under $500. 250 cc engine that parts are easy to come by. 4 or 5 speed transmission. Automatic or manual available. Shaft drive so no clutches to deal with. Similar swingarm & rear diff as a cart. Looks like they are around 44" wide.... might be able to use spacers or a different offset wheel to get to the 48" - 50" these carts have. I haven't gotten a chance to really look at a 3 wheeler. But saw someone ask about it in another thread & the more I dig into it online, the better it sounds. Plus they do almost 40 mph in stock condition.

11-28-2011, 01:46 PM	#8
jondeere_91 Not Yet Wild Join Date: Nov 2011 Posts: 1	Re: Polaris engine swap? i need some help with mounting my 440 in my cart i cant figure out the belt the motor turns one way an the axle turns the opisit way. anyone have a solution that will help me?
jondeere_91 Not Yet Wild Join Date: Nov 2011 Posts: 1

11-28-2011, 01:53 PM	#9
DOOmsman Gone Wild Join Date: Jul 2008 Location: Reddick IL Posts: 11,220	Re: Polaris engine swap? Jondeere look in big block threads and a ton of information about ccw and cw engine swaps.

01-21-2012, 10:39 PM	#10
regalrcr Not Yet Wild Join Date: Dec 2009 Location: florida Posts: 28	Re: Polaris engine swap? putting a 400 sportsman 2003 in my yammi g16 now.down to the harness now,and its a beast.cant get it to fire yet.

Similar Threads
Thread	Forum
mci engine swap	Gas EZGO
polaris 340cc motor everything included to swap	Golf Carts and Parts
CC to Polaris Sportsman swap	Big Block Talk!
engine swap	Gas EZGO