American Sportsworks 653cc

[Jim Kessell]

Hi All

2010 653cc

Need any information on a Subaru Robins EH65 engine. Particularly the carb vacuum line to the bottom of the carb. I think it’s disconnected internally in the engine. 
Thanks Jim

[W B]

Hi Jim,

I think what you believe to be a vacuum lne is just a drain line from the carb bowl. If you look closely from the backside of carb {flywheel side) you will see a small screw that is really a valve. What model do you have (UTV not engine) and where are you located?

bbirder

[Jim Kessell]

Not sure of model.  Don’t have a title yet.  How can you tell from VIN ??

Northeastern PA

[W B]

Not sure about Vin #. Didn't get a title with mine. You probably have an older model 700. Does it have single wheel drive , 2 wheel and 4 wheel also. That engine is no longer being made or sold and parts are hard to come by. If you need anything post on here or send me a message. I'll try to help. I'm in South Louisiana.

[Jim Kessell]

WB

Do you know of a valve adjustment process for a landmaster 653cc engine ??

Thanks Jim

[W B]

Jim,

Try this link to a service manual. It will cost you 5.95 but well worth it. I tried sending my copy but couldn't get it to load correctly. You should be able to get instructions and clearances. Is it running bad or you are just checking? Does your engine have the two barrel carb?

 

https://subaru-robin.servicemanualvault.com/Subaru-Robin-EH65-Engine-Service-Manual.html

[W B]

Jim

I'm going to attempt to post the valve adj portion of the manual only. hope it works. Watch closely to ID which cyl is #1 and which is #2. Also be very careful wiring up the coils. The wire coming out from them is the kill wire and the key switch connect it to grd to stop engine. *****IF 12V HITS THAT WIRE IT WILL FRY THE COILS . i know because my grandson was helping me and made that mistake. Took me forever to find two coils and they were used and expensive.

valve.adj.eh65.pdf

[Jim Kessell]

WB

Got the valve procedure Thanks !

Is there any option other than the OEM Nikki carburetor for the EH65. 

[W B]

Jim, I"ve only seen the double barrel. Saw the single in thge book but not sure if ASW ever used it. The Nikki double barrel is used by severa;l enginde mfg such as Briggs and Kohler. Simple to work on but the carbs are configured differently for other mfgs.Question.......Is your engine running? If it is, I would leave well enough alone until you need to get into it. Sometimes we want to take things apart and clean them and create a bigger problem than we had. Only go after troubles!

[Jim Kessell]

WB

It is running… thank god !!

Got it to idle but it won’t take a lot of throttle. Need to research the whole choke/throttle setup.  I appreciate all your help !! I’m a lot further along than I would have been and I’m thankful for your support !!

[W B]

Ooooh-kay. Video sheds a different light on things. Did you strip body panels or did you get it w/o the wrap? TGhose may not be avai;lab ler and if so yhou vcan probably buy a new u nit for what they will cost you. Sounds like trash in the carb `or possibly the governor sertting is off. When removing carb go easy on the four all thread rods that hold it in place. They strip easy in the manifold .I have a book on that carb, I'll find it and send to you. I've never had to change a jet but the orings may go bad. Did you get the repair manual ordered?

[Jim Kessell]

Haha

yea it looks like a pile for sure. 
I did buy it complete. I’ve done a few atv’s like this.  I buy junk and fix them. 
I really avoid buying parts new unless absolutely have to !! I’m retired so I do this to keep busy. 

[W B]

Jim, I'm going to attempt totake this the messaging

[Ryan Brown]

Hello I'm looking to see if anyone knows how to eliminate the governor on these machines.... ty

[W B]

Ryan

I don't see where it would be any different than any other engine. Ask Redbeard. Google him on youtube. I know he runs some and he likes to remove the governor.

[W B]

https://youtu.be/2i5F5Ena4nsRR

[EGY]

On 9/2/2023 at 5:12 PM, W B said:

Ooooh-kay. Video sheds a different light on things. Did you strip body panels or did you get it w/o the wrap? TGhose may not be avai;lab ler and if so yhou vcan probably buy a new u nit for what they will cost you. Sounds like trash in the carb `or possibly the governor sertting is off. When removing carb go easy on the four all thread rods that hold it in place. They strip easy in the manifold .I have a book on that carb, I'll find it and send to you. I've never had to change a jet but the orings may go bad. Did you get the repair manual ordered?

Could you send possibly send me the link for the book on this carb

[W B]

@EGY

Merry Christmas !

Couldn't find the one I was looking for but these should help you. One thing I can tell you is they are almost identical to the Nikki used on the Briggs engines.except if you can find one for the Subaru it might be 300 bucks and you can find Briggs Carbs in the aftermarket for 35 dollars. I have taken a briggs carb and drilled out the shafts to move to the opposite side to make it fit subaru linkage and moved the intake tube for fuel also. You can buy overhaul kits very reasonable for briggs that will work on the Sub. Mostly just gaskets and o-rings.

Try these links

https://www.partstree.com/models/eh650db8010-eh65-subaru-robin-engine/640-fuel-lubricant-6/

https://youtu.be/bjAjSrpouDc?si=ee0mHe5qP_tZBdJH

https://youtu.be/1K-dEik7Z-0?si=InduVX76UAfVDwZJ

 

WB

[W B]

@EGY

You can get a copy of the manual here. It might cost you a few bucks but it won't let me forward my copy.

https://subaru-robin.servicemanualvault.com/Subaru-Robin-EH65-Engine-Service-Manual.html

[EGY]

On 8/26/2023 at 7:05 PM, W B said:

Not sure about Vin #. Didn't get a title with mine. You probably have an older model 700. Does it have single wheel drive , 2 wheel and 4 wheel also. That engine is no longer being made or sold and parts are hard to come by. If you need anything post on here or send me a message. I'll try to help. I'm in South Louisiana.

Hello, looking for a needle or a float valve on the Subaru 653. Any help? Ty 

[EGY]

On 12/24/2024 at 10:04 PM, W B said:

@EGY

Merry Christmas !

Couldn't find the one I was looking for but these should help you. One thing I can tell you is they are almost identical to the Nikki used on the Briggs engines.except if you can find one for the Subaru it might be 300 bucks and you can find Briggs Carbs in the aftermarket for 35 dollars. I have taken a briggs carb and drilled out the shafts to move to the opposite side to make it fit subaru linkage and moved the intake tube for fuel also. You can buy overhaul kits very reasonable for briggs that will work on the Sub. Mostly just gaskets and o-rings.

Try these links

https://www.partstree.com/models/eh650db8010-eh65-subaru-robin-engine/640-fuel-lubricant-6/

https://youtu.be/bjAjSrpouDc?si=ee0mHe5qP_tZBdJH

https://youtu.be/1K-dEik7Z-0?si=InduVX76UAfVDwZJ

 

WB

Could you possibly send me pictures of your modified carburetor, please. I’m thinking I really only need the needle or the float valve. 

[W B]

7 hours ago, EGY said:

Could you possibly send me pictures of your modified carburetor, please. I’m thinking I really only need the needle or the float valve. 

Do you have the single throat or two barrel carb? What is it doing that makes you think it is the needle valve? I would have to tear into it more than I want to for pics of the detail. If you can't look at it and see what is required I don't recommend you attempting it. Again, what is it doing that makes you think it is the needle valve. You can get overhaul kit for briggs two barrel online relatively inexpensive and the internal parts should fit the Subaru carb. Another thing you can try is lapping your needle valve with a small amount of toothpaste. Sometimes that will fix it up.

[Jim Kessell]

hi All

looking for the front and rear differential wiring color code and connection information..

WB >> I am looking through your suggestions..

Thanks Jim

[Dabk759]

Late to the conversation. We have this engine but won’t keep running. Changed fuel pump, lines, filters. Choke on or off, it won’t stay running after using engine starter. WB, we are in south Louisiana,as well. Would love to find someone close to help us. Thanks