If you are trying to clean the jets, you may find that the solvent is making it through the jet but is probably not fully cleaning them.
I use a set of welding torch cleaning files to clean the jets. Start small and work up. Mine was completely clogged shut. I had to be careful to feel for a change in the filing resistance as I went up in size. The jet I pointed out in the video is just for idle fuel mix. Almost all carbs have something like it. When it gets clogged up the engine starts to die causing the governor to open the butterfly. This sucks large surge of fuel through the main jets which momentarily over speeds the engine. And the cycle repeats.... Choking the engine reduces the airflow which helps reduce the surge of fuel. If choked just right the perfect amount of fuel is sipped in through the main jet and the butterfly is held just slightly open by the governor. Now problems will occur when you go to full throttle because the engine is partially choked and not getting enough air. Josh -- When privacy matters. http://www.secure-my-email.com On Aug 20, 2013 8:32 AM, "djhaug...@juno.com" <djhaug...@juno.com> wrote: > Josh, > > Pretty cool video, I'll have to watch more closely from home. > > I really appreciate the video and commend you for making and posting it! > > Thanks, > Danny > > > ---------- Original Message ---------- > From: Josh Muckley <muckl...@gmail.com> > To: cnc-list@cnc-list.com > Subject: Re: Stus-List Atomic 4 Carb things to try. > Date: Tue, 20 Aug 2013 04:11:17 -0400 > > This video reviews some basic carburetor functions.� It is of a basic > Chinese knock off carb but maybe it hits on something you didn't know.� > Worth a try anyway. > > https://www.youtube.com/watch?v=HaMqiHvWGec&feature=youtube_gdata_player > > Josh > > -- > When privacy matters. > http://www.secure-my-email.com > On Aug 20, 2013 12:06 AM, "jtsails" <jtsai...@gmail.com> wrote: > >> Also make sure the scavenge tube isn't blocked. >> James >> Delaney >> C&C 38 MkII >> Oriental, NC >> >> ----- Original Message ----- From: "Michael Dean" <md...@ca.inter.net> >> To: <cnc-list@cnc-list.com> >> Sent: Monday, August 19, 2013 8:48 PM >> Subject: Re: Stus-List Atomic 4 Carb things to try. >> >> >> Danny, >>> >>> I am assuming that you didn't forget to try adjusting the idle mixture >>> screw. (I forgot one year - duh!) �Did it have any effect? �It may also >>> be >>> worth loosening the distributor and turning it back and forth 10 degrees >>> or >>> so, though timing as very non-critical on the A4. �Another thing to try >>> is >>> to slowly pull the choke out in small increments. �If it idles better >>> then >>> something in the idle fuel path is likely plugged a bit and it is running >>> lean at idle. >>> >>> Another possibility is the float valve isn't closing perfectly and at >>> idle >>> too much fuel is entering the carb. �Sometimes the float valve can be >>> freed >>> up by shutting off the fuel supply and letting the engine run until the >>> carb >>> is empty. �Open the fuel supply valve and start the engine - will take a >>> moment or two. �The rush of fuel into the carb can sometimes clean the >>> float >>> valve if it is a bit gummy. >>> >>> I also assume the plugs are good and properly gapped. >>> >>> All I can suggest that doesn't require removing the carb again and >>> blowing >>> out the various jets with compressed air. >>> >>> Mike >>> >>> -----Original Message----- >>> From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of >>> djhaug...@juno.com >>> Sent: August-19-13 2:55 PM >>> To: cnc-list@cnc-list.com >>> Subject: Stus-List Atomic 4 Carb rebuild >>> >>> Hello all, >>> >>> I'm looking into rebuilding my carb. �I'm having some idling issues and >>> It's >>> getting better and better but I think It should be better still. �When I >>> looked inside the carb. �It was dirty and gritty...no good, >>> >>> I sprayed it all with carb cleaner. �Although it is better I want to try >>> a >>> rebuild and more aggressive cleaning. >>> >>> I've found the moyer rebuild kit at $87.00 + shipping then I found this >>> one >>> >>> for $26.00 and I could buy 3 for the less and get free shipping... >>> http://www.carburetion.com/Products/ProductDetails.aspx?Part=KT-5535 >>> >>> It seems it is even a better kit in that it has more parts, >>> specifically, it >>> seems to have the throttle arm seal and cap in it. >>> >>> Is moyer really just price gouging? >>> >>> he even charges another $12.50 for his tech tip videos on trouble >>> shooting >>> you carb. �I mean I'm all for a guy making a buck but, you'd think if he >>> is >>> charging more than triple on parts, he could throw in the videos... �I'll >>> probably pay the $12.50 to see it, especially if I save all that dough on >>> the kit! �Then, I don't have to feel guilty about not giving the guy my >>> business... �I mean I'd hate to see him go out of business... >>> >>> Anyway, maybe this is a substandard kit? >>> >>> Also, I have a rebuilt carb that I did last year before I knew I was >>> buying >>> the Moyer exchange engine. �So, I'll swap that in, I would just like to >>> have >>> a rebuilt one on standby... >>> >>> I also found a farm tractor supply selling the whole carb for $175.46 >>> Moyer >>> wants $270 >>> >>> http://www.farmersserviceinc.com/marine.htm >>> >>> Any comments or suggestions are always appreciated! �I thought this >>> could be >>> good infor for the other A4 boats... if there are any left LOL >>> >>> Danny >>> >>> >>> >>> _______________________________________________ >>> This List is provided by the C&C Photo Album >>> http://www.cncphotoalbum.com >>> CnC-List@cnc-list.com >>> >>> >>> _______________________________________________ >>> This List is provided by the C&C Photo Album >>> http://www.cncphotoalbum.com >>> CnC-List@cnc-list.com >> >> >> >> _______________________________________________ >> This List is provided by the C&C Photo Album >> http://www.cncphotoalbum.com >> CnC-List@cnc-list.com > > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com > >
_______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
