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MyOtherBrotherL
July 30th, 2008, 12:46 PM
All,

I'm looking for a good source (Shop or repair place) or a MORE member who is good at small engine repair. As some of you know, the club bought a mechanized wheel barrow last year. (A Canycom BFP602)

This unit has a Mitsubishi Engine (GM182LN-22K) on it. From the day we got it, this motor has always started on the first or second pull. Unfortunately this was not the case the day before the Wakefield workday. When I went to load the unit up and onto the truck it would not start. After messing around with some starter fluid I tracked the problem to the carburetor. I took it off, purged the fuel, cleaned the jet and reinstalled using fresh fuel. During the cleaning process I noticed that there was a screw on top of the carb tightened all the way down. (I looked the part up and it's referenced as being "Jet, Pilot"). I cleaned it and reinstalled (Not tightening all the way).

When I put everything back together the unit started right up, but it ran like POO. I adjusted the jet screw all the way in like it was and the unit turned off. I backed out the screw and it started again. Unfortunately the screw has no means of tension so leaving it in anything but the tightening down position causes it to turn from vibration. For the trail day I stuck some duct tape on it and we used it. But it ran BAD.

My small engine knowledge is 25 years old and limited. I need either a good shop to bring this thing to or somebody who can help me fix it.

Let me know.
philvw
July 30th, 2008, 12:50 PM
Most jet adjustment screws, especially on small engines, have a spring on them to retain tension and adjustments. I doubt it was all the way in before, and I suspect that you just lost the spring in disassembly and cleaning. I bet you can even fashion a workable one from a spring in a click type ball point pen. Steal one from starbucks.
MyOtherBrotherL
July 30th, 2008, 01:30 PM
Most jet adjustment screws, especially on small engines, have a spring on them to retain tension and adjustments. I doubt it was all the way in before, and I suspect that you just lost the spring in disassembly and cleaning. I bet you can even fashion a workable one from a spring in a click type ball point pen. Steal one from starbucks.

I thought so too, but I have the engine parts manual. No Spring..........

(I'd post a picture, but.........................)
wrench177
July 30th, 2008, 02:04 PM
L, sounds like you have clogged jets. The old gas that was in the tank was probably starting to varnish and the jets may have a little debris restricting flow through the carb. Best thing to do is get a carb re-build kit, take it all apart, clean with carb cleaner, blow out all jets with compressed air and put it all back together again. Some jets are made to be adjusted and use a spring as tension, however, there are some jets that are not adjustable. The jets on my outboard are like this. Set 'em and forget 'em. The jet on this engine sounds like it MAY be the same way. Screw it all the way in and that's it.

The other thing you should do it make sure you ALWAYS put Stabil in with the gas, especially if there is even a slight change that you won't use all the gas within 30 days.
wrench177
July 30th, 2008, 02:17 PM
Just out of curiosity, does the "jet pilot screw" look like a standard flat hex-head bolt or is it a thin needle type screw with a small slot for a thin screwdriver? If it is a hex-head bolt then it is just an access screw to access the jet within and needs to be tight to keep air out of that passage.
MyOtherBrotherL
July 30th, 2008, 03:37 PM
In case anyone is interested:

http://www.canycom.jp/recomment/9820gm182ln-22k/9820182ln-22k.pdf

PDF Page 11 (Manual Page 10)
Part Number 6
MyOtherBrotherL
July 30th, 2008, 03:52 PM
In case anyone is interested:

http://www.canycom.jp/recomment/9820gm182ln-22k/9820182ln-22k.pdf

PDF Page 11 (Manual Page 10)
Part Number 6

I'm so mad at myself. I typed that reply before 1 PM and forgot to POST it. It would have saved some explanation

Just out of curiosity, does the "jet pilot screw" look like a standard flat hex-head bolt or is it a thin needle type screw with a small slot for a thin screwdriver? If it is a hex-head bolt then it is just an access screw to access the jet within and needs to be tight to keep air out of that passage.

I figured that the jet and carb were clogged. I used some Fuel Injector cleaner on it but I wasn't in the mood to disassemble the entire carb. "The Jet Pilot Screw" is a small screw with a needle head. The head has two small holes in it at opposing angles.

L
wrench177
July 30th, 2008, 04:01 PM
From what I can see it has several components to the jet. The jet itself is a small orifice within the body of the carb, the jet pilot works in conjunction with the adjuster screw to control the amount of fuel that goes through the jet.

My original posts still stands and you need to over-haul the carb. If it used rubber o-ring gaskets, which I doubt, you could simply disassemble the unit, clean it out and reassemble without needing to buy new gaskets. My guess, however, is that is uses paper gaskets and when you tear the unit apart the gaskets will shred and you will need new ones. At the very least you will be the gasket that goes between the carb body and the lower bowl.

If you can remove the carb and get it to me I can try and clean/rebuild it for ya.

*****Edit**** Larry, it looks like it does use "o rings". I think you are in luck.