Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

Ahh, at first I could not understand what you were saying about vertical center.  Then, as I kept reading I now understand you are referring to the crankshaft setting directly on top of the impeller shaft or slightly off to the side.  I have not had a chance to get a longer belt yet, but I was thinking of taking some measurements of the pulleys and making a trip to tractorsupply and getting some new belts and seeing what different size pulley ratios I can come up with.  I think I had the opposite problem with my belt.  When first installed it seemed to slip a bit so it was spinning slowly then it seemed like the belt got kind of gummy and started sticking more.  They are cheap belts from the hardware store down the street and might not be OPE rated so that could be part of my problem.  I will add that my 2 belts are definitely a bit tight, so when I get them replace I will report back on the problem.

Here some info I ran into about the charging system:

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Depends on which charging system you have. There are 3 different charging systems for GX390.

3 Amp with one charging coil under flywheel.

10 Amp with two charging coils.

18 Amp with four charging coils.

I have the 10 amp system, and I have headlights, running lights and turn signals on my UTV, and it keeps the battery fully charged. The 3 amp system will barely keep the battery charged. The Clone 3 amp systems have been suspect, as to whether they put out the needed power to charge the battery. If yours is a clone, you might consider changing to the OEM Honda coil.

If your motor is a 3 amp, you need more than the coils to upgrade to the 10 amp. The rectifier is different on the 10 amp. The wiring also is different on the 10 amp.

The rectifier and wiring on the 18 amp are different than the 3 and 10 amp systems as well.
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The parts diagram lists only 1 charge coil, and I believe I have heard these are 3 amp coils before so the information seems to fit.
The original thread was here: http://www.buggiesgonewild.com/clone-engine-swaps/38923-duromax-vs-carrollstream-engine.html
I just did a google search for "honda clone battery" and found some info.

I have not had much chance to get into the garage yet, but should have plenty of time next week.

chefwong wrote:
Give me a mailing address and I will mail the instructions to you.  I do not have a scanner on the computer.  In the case of my new HS928TAS the weld nuts are there, but the instructions say not to use them, and drill the holes the instructions require and install the commercial shoes using 'skid spacer', a heavy steel plate with two 11/32" holes in it that mate with the skid shoe itself.  What they seem to be ding by this arrangement is make for a reinforced auger casing wall to hold the skid shoes.  The spot welded nuts that were installed by the factory are not going to be as strong, and especially in an area prone to rust even more than the rest of the auger housing. 

jrtrebor, it was me who asked about the use of clone Hondas on snow blowers. Beautiful work on the various covers by the way, and thanks for all the pics and explanations about what to cover & how you did it. Also recognised the bicycle parts you used for the throttle control, good repurposing. Reminds me of the time many years ago when I was driving my 68 383 Roadrunner with my left leg in a cast. Hooked up a bicycle brake handle & cable to control the gas so I could brake & clutch with my right leg! (no accidents)
I also agree with Shryp, you can never have enough power!!! I have a worn out HM100 that I am rebuilding and I will try to wring a little more power from it by porting & polishing the intake & exhaust passages and maybe shaving the head cover a couple of thou. I am always on the lookout for an 11 or 13 horse clone to use on my 924050 8-24 that I am also rebuilding (tried to buy the 15 horse that HD had on sale on line, couldn't do it from Canada).
By the way, I notice that the front of the tractor section (where you attach the auger housing) on your machine has a solid plate (holes in it to pass the auger shaft), whereas the smaller machines like my 8-24 have nothing. Is that something you added or do all the larger models come with that extra beef?

Cheers