Horse Newbie 7,168 #1 Posted July 17, 2022 (edited) This may belong in “Other Brands” because this carb came off of my neighbors go cart… Subaru engine. The engine ran for a few seconds on a shot of brake cleaner. Then died… Sure enough carb is gunked up. Plan is to soak overnight in GUNK carb solvent, you know, in the gallon can. Instructions say do not put plastic parts in the solvent, but I could not get the hinge pin out on the plastic float. Other parts that were plastic I could not get off either. Have any of you guys had terrible results doing this, or good results ? Edited July 17, 2022 by Horse Newbie Share this post Link to post Share on other sites
Snoopy11 5,717 #2 Posted July 17, 2022 Normally... I use a carb cleaning tools usually the smallest one in the pack... (I know... I know... could harm the soft jet material... but I'm careful...) Don 1 Share this post Link to post Share on other sites
Horse Newbie 7,168 #3 Posted July 17, 2022 (edited) The plastic thing that the governor rod attaches to will barely turn… guess it controls the throttle plate right ? … and it should move freely correct ? Edited July 17, 2022 by Horse Newbie 1 Share this post Link to post Share on other sites
Snoopy11 5,717 #4 Posted July 17, 2022 1 minute ago, Horse Newbie said: The plastic thing that the governor rod attaches to will barely turn… guess it controls the throttle plate right ? … and it should move freely correct ? It should DEFINITELY move freely. Try spraying with PB blaster... Don 1 Share this post Link to post Share on other sites
Horse Newbie 7,168 #5 Posted July 17, 2022 Do you think the GUNK solvent will damage the float and other plastic parts ? 1 Share this post Link to post Share on other sites
Horse Newbie 7,168 #6 Posted July 17, 2022 I wanted to get the float needle out… Share this post Link to post Share on other sites
Snoopy11 5,717 #7 Posted July 17, 2022 Just now, Horse Newbie said: Do you think the GUNK solvent will damage the float and other plastic parts ? I personally have used it without issue in the past... and it works well... but it won't unclog it... in my experience. Don 1 Share this post Link to post Share on other sites
Horse Newbie 7,168 #8 Posted July 17, 2022 I only saw one jet… I’m supposing there is more than one… time to hit YouTube… Share this post Link to post Share on other sites
Horse Newbie 7,168 #9 Posted July 17, 2022 I’m not a carb guy but hey it shouldn’t have sat outside until the tank rusted through… I’ll give it a shot… already showed my neighbor a new OEM carb is $121 on the Jungle site… Share this post Link to post Share on other sites
Snoopy11 5,717 #10 Posted July 17, 2022 1 minute ago, Horse Newbie said: I only saw one jet… I’m supposing there is more than one Normally a low speed and high speed... but the high speed is much more prone to clogging... Don 1 Share this post Link to post Share on other sites
Horse Newbie 7,168 #11 Posted July 17, 2022 (edited) I saw something (one or two spots) that looked like a hole with a brass check ball in it… wonder if that’s what it was? The holes led to the outside of the carb… You can see what I’m talking about in the 1st and 2nd pic above…under the word Mikuni on the side of the carb… Edited July 17, 2022 by Horse Newbie Share this post Link to post Share on other sites
pacer 3,174 #12 Posted July 17, 2022 I'm kinda leaning with @Snoopy11here .... Been many yrs since I've used any carb cleaner, but IIRC I put plastics in with the rest with out probs. Also with snoopy on that stuff has limits, it'll make it look real purdy but getting into those leeetle places you need a set of those things snoopys got, or a good strong blow gun.... or both! 1 Share this post Link to post Share on other sites
Horse Newbie 7,168 #13 Posted July 18, 2022 Thanks guys… I will report back when I have more to share… 1 Share this post Link to post Share on other sites
Jeff-C175 7,203 #14 Posted July 18, 2022 I've been looking at ultrasonic cleaners. I think it's something I would get a fair amount of use out of, other than carbs. Berrymans has been my go to for cleaning carbs, but I can't recall doing any with plastic parts. 4 Share this post Link to post Share on other sites
Terry M-(Moderator) 2,178 #15 Posted July 18, 2022 Have you looked on line just to see if a replacement is available? Sometimes you get lucky while searching and are able to find an economical replacement…sure makes life easier 😎. 1 Share this post Link to post Share on other sites
lynnmor 7,482 #16 Posted July 18, 2022 I use only gasoline for soaking, if a passage needs more cleaning, I blast it with a spray can of carburetor cleaner. You should not use metal brushes to clean jets, scratches will change the flow rate. 1 Share this post Link to post Share on other sites
Snoopy11 5,717 #17 Posted July 18, 2022 2 hours ago, Terry M said: Have you looked on line just to see if a replacement is available? If it was mine... I would go with a Tillotson 212R carb... https://www.eccarburetors.com/tillotson-212-predator-224-pk-3a-stock-carburetor Don 1 Share this post Link to post Share on other sites
Horse Newbie 7,168 #18 Posted July 19, 2022 10 hours ago, Terry M said: Have you looked on line just to see if a replacement is available? Sometimes you get lucky while searching and are able to find an economical replacement…sure makes life easier 😎. I did look online… OEM carb $121… 1 Share this post Link to post Share on other sites
Horse Newbie 7,168 #19 Posted July 19, 2022 9 hours ago, lynnmor said: I use only gasoline for soaking, if a passage needs more cleaning, I blast it with a spray can of carburetor cleaner. You should not use metal brushes to clean jets, scratches will change the flow rate. Oops… I did use metal brush on outside of carb. Used a bread tie wire to poke through the tiny holes in the jets… Is that okay to do ? 1 Share this post Link to post Share on other sites
Horse Newbie 7,168 #20 Posted July 19, 2022 Took the carb out of the GUNK solvent and washed it down with dish detergent and rinsed… blowed it dry and shot some carb cleaner everywhere I could find a hole… had to make some mounting gaskets… 1 2 Share this post Link to post Share on other sites
Horse Newbie 7,168 #21 Posted July 19, 2022 Got her running… Hot Rod (hear it, the rod) go cart… IMG_1460.MOV 2 Share this post Link to post Share on other sites
Horse Newbie 7,168 #22 Posted July 19, 2022 (edited) Naw, it ain’t no rod… Looks like it’s either the centrifugal clutch or the other thing that the chain sprocket is on… because the knocking stops when you gas on it… also ate up what was a worn out belt to begin with… More on that later… This thread is about to turn into a “messing with go cart” thread. I can’t seem to change the title of this thread. If a moderator sees this and thinks I need to move it let me know… of course I don’t know how to do that… IMG_1461.MOV Edited July 19, 2022 by Horse Newbie 3 Share this post Link to post Share on other sites
Snoopy11 5,717 #23 Posted July 19, 2022 15 hours ago, Horse Newbie said: Oops… I did use metal brush on outside of carb. Used a bread tie wire to poke through the tiny holes in the jets… Is that okay to do ? Yes... that is perfectly fine. As long as you are careful and take your time. People warn against using any sort of metal in carbs... but as long as you don't ape-crap on it... and start chewing on the soft materials in the carb... you will be just fine. Don 1 Share this post Link to post Share on other sites
Horse Newbie 7,168 #24 Posted July 24, 2022 I know this thread is titled as a carb issue, and the carb has been cleaned and the go cart is running. I need to get a belt, so I decided to jump into taking the seat off which is going to have to have new plywood bases made. Guess I’m gonna learn a little about upholstery… I know this has veered way of carburetor, but it’s a go cart thread so I figured I would just go ahead and put it all here… so as not to clog up Red Square with another thread that is all over the place. 1 Share this post Link to post Share on other sites
Snoopy11 5,717 #25 Posted July 24, 2022 If you left click and hold on the title in your thread... you can change the thread title... Don 1 Share this post Link to post Share on other sites
