ST1136 getting a GX390 - Snowblower Forum : Snow Blower Forums
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post #1 of 18 Old 12-16-2018, 12:50 AM Thread Starter
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ST1136 getting a GX390

i recently picked up a ST1136 that had a bad motor on it. since ive got the blower torn down doing a complete build, i figured id just swap out motors rather than rebuild this one. i wanted more power anyways. 11hp seems too little for a 36" 2 stage.

which brings me to now.. im going to look at a bad honda generator tomorrow. it has a good GX390 on it, but the generator wont put out any power. the guys asking $125 for the whole thing.

i see this motor has been swapped onto quite a few blowers, is there a complete list of what needs to be replaced or modified to make it work on a snowblower? im seeing something about winterizing it, and i saw mention of swapping out a pulley or two.
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post #2 of 18 Old 12-16-2018, 01:03 AM
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Here's the Air Guide diagram... Link to the HSS1332 parts lists here: Honda Power Equipment - Parts Look Up - Official Site
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post #3 of 18 Old 12-16-2018, 01:48 AM
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That should make for a nice unit. If it doesn't already have it I'd sure install the dual belt drive for the impeller/auger.
Not sure if this is the correct kit for your machine should you need one but I'm sure someone would know.

https://www.jackssmallengines.com/ja...caaglyealw_wcb

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Make sure the windows are up before the snow plow goes by !!

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post #4 of 18 Old 12-16-2018, 04:06 AM Thread Starter
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to SBF another-user

That should make for a nice unit. If it doesn't already have it I'd sure install the dual belt drive for the impeller/auger.
Not sure if this is the correct kit for your machine should you need one but I'm sure someone would know.

https://www.jackssmallengines.com/ja...caaglyealw_wcb

.
looking at the pictures, im pretty sure ive got it already. ive got 2 belts on my blower as is, and the main shaft pulley has 2 belt grooves in it.
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post #5 of 18 Old 12-16-2018, 08:01 AM
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GMorning a/u,

If that truly is a Honda generator, it should have a tapered crankshaft. I'm not entirely sure of how much of it is tapered tho, so IDK if you can simply cut off the taper and have enough left to install a pulley. As to how I found out the hard way?? Let's just say, "Experience is what you get, when you Don't get what you want"......
I have seen tapered shaft adapters on eBay, to accomplish what you are trying to do, although I have no experience with them, I just know they exist. Again, not sure on pulley alignment. Just be aware that there may be more modification than expected. But when all said and done, I'm sure you will have created "The Kit" to make it happen.
Good Luck and hope to see a video soon!!!

Thanx, Jay
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post #6 of 18 Old 12-16-2018, 08:03 AM
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Quote:
Originally Posted by tabora View Post
Here's the Air Guide diagram... Link to the HSS1332 parts lists here: Honda Power Equipment - Parts Look Up - Official Site



+1 plus the recoil starter has to be different so it wont suck in snow as the regular coil starter has vents all around it.



IMO all you need is a plate/cover to stop snow from accumulating around the air guide and onto the throttle control linkage. You can either buy the plastic one or fabricate some out sheet metal, trying to buy all those above parts will set you back a pretty penny.
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post #7 of 18 Old 12-16-2018, 08:06 AM
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Originally Posted by another-user View Post
which brings me to now.. im going to look at a bad honda generator tomorrow. it has a good GX390 on it, but the generator wont put out any power. the guys asking $125 for the whole thing.

i see this motor has been swapped onto quite a few blowers, is there a complete list of what needs to be replaced or modified to make it work on a snowblower? im seeing something about winterizing it, and i saw mention of swapping out a pulley or two.

Every generator I have worked on has a tapered crankshaft for the rotor. I would plan on a new crank for it.


Edit: I see the Z beat me to it.

Last edited by DriverRider; 12-16-2018 at 08:30 AM.
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post #8 of 18 Old 12-16-2018, 09:48 AM
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Pressure washers are the usual go to source for engine donor projects. Usually always a straight keyed PTO.

I agree with the folks above. Generators are tapered shaft ptos. But you can probably make it work.

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post #9 of 18 Old 12-16-2018, 11:07 AM
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Pressure washers are the usual go to source for engine donor projects. Usually always a straight keyed PTO.

I agree with the folks above. Generators are tapered shaft ptos. But you can probably make it work.

+1 4"x1" shaft for most powerwashers,
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post #10 of 18 Old 12-16-2018, 11:27 AM
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Asking $125 for the gen, wave $75 an see if he bites. It could be a simple fix, sell it for profit and buy a new engine.

If I can't fix it, I can screw it up so bad that no one else can either!
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