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Discussion in 'Mechanic and Repair' started by JRS Landscaping, Jan 28, 2014.
yes i believe that is it...it was in my case on a go cart I had to fix...
Rob is trouble shooting this engine one of the best techs here on lawnsite
This site is. Where we all can share info and who knows you could be right
Just because we disagree don't make us right.
restrorob... I removed the o ring like you said and re-seated it without it. It was originally seated all the way with the o ring on. so ruled that out. I'm really at a loss might just think its best to toss a new carb on it? I think some internal passage in the carb is gummed up? Are there any internal passages drilled in the carb body that can be clogged??
There are internal passages, I don't know how you are cleaning but...... A can of Walmart "SuperTech" brand carb & choke cleaner with the little straw shot through ALL ports and passages watching for it to exit other ports/passages followed with compressed air should yield a clean open carb.....
I say "SuperTech" because I KNOW it will cut varnish and dissolve gum unlike Gumout and some other brands that are nothing more than mineral spirits in a spray can (JUNK)......
Short of buying a new carb, Since it idles fine I'd buy a set of JET DRILLS and drill the main one size larger and see how it does. I've had to do this on a few brand new Honda clone engines after a new carb didn't solve the high speed surge.....
Funny you say that. I used gum out with compressed air. ill try again with the super tech.
Are you sure the fuel solenoid is working ok? I'm not familiar with that particular carb, but I had a case where the nylon? tip that was molded/pressed on the sol. pintle was loose on the pintle. The unit ran fine at low-mid speed, but would act up intermittently at high speeds. I had cleaned the carb, etc. and checked the operation of the solenoid, pintle was free, no gunk buildup. The only way I discovered it was when I blew solvent/ air into the solenoid to clean around the pintle, I saw the tip move. It never came completely off, just moved up a bit. Apparently the fuel flow at speed was enough to dislodge the tip and restrict/ shut off the fuel!
Anyways, check the solenoid and passages!
If the carburetor still doesn't work correctly, you may have to take it to someone who has an "Ultra-sonic" cleaning machine. This machine uses carb cleaner and ultrasonic vibrations to get the very small passageways clean when traditional methods fail.
I should add : You can usually hold the solenoid pintle in the retracted position by jamming a toothpick in it. Or remove the sol. and use a metric bolt to plug the carb.
Gave up going to buy a new carb tomorrow . Restro quick question to pick your brain, I Looked up the carb in the diagrams and there is an "A" and "B". Any clue on the difference? #11 in link. Thanks again!
On some items Honda buys parts from two different vendors, That's why you will see two different parts/numbers for the same application. Either part will work, If you notice they appear to have dropped one vendor and both now have the same part number......