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After carb works fine just not when air cleaner is on! Would rather get original carb dialed in with the lower air fuel mixture screw ! Anyway no one has answered my original question if anyone has drilled out an extra hole in air cleaner?? Simple small hole if it works great if it doesn't fill...

Nothing wrong with the engine! I have many others in the rotation this one needed valve job etcetera and working on and off on it for a year! Anyway what i have now is a simple fix all I wanted basically is some one that may have seen or did what I may still do Drill an extra hole! Easy to fill...

im going to try all options! Thanks Doc

If there are multiples of air cleaners for this engine then there must have been one that had two holes for the 4 screw carb?? Drilling another hole would be simple to fill if it did not work! There has to be someone that has seen this application before between the two different carbs unless...

That carb is a no go for now! Look at the new pics you can see the holes I'm referring to! Im hopping to get the carb with the lower air fuel adjustment below working but have not had any luck it has been throughly cleaned and gone through several times may just be bad carb??

No names on carbs New one is Chinese I have 3 Two 4 screw and one 3 screw! I also have a new engine i am getting today but don't know what carb is on that one! But the one im using works fine but not with air box so wondering if others have done the same? You can see pic One on right is the 3...

The yellow dot not perfect but you can see to correspond with the gasket and carb

The air is filtered as it is inside air cleaner ! Thanks

Im finish up a long battle with this machine and maybe at the finish line. After many months of trial and error I found my problem !! This motor had a 3 screw carb which i haven't been able to get right so will keep working on it in the mean time put a 4 screw carb on and it runs but not...

Here is video of where im at and video of engine running Only thing that I may have over looked in using new fuel line? I have new shut off valve and new fuel filter Have changed the multiple carbs but still could have got some debris in carb??

Ok don't have those tools I have pulled sparkplug wires individually when running both cylinders sounded about the same i can post a video!

This is where im at! The engine starts right up and don't notice any drag but its still rough not really rough but not right with a bit of a sputtering I have sprayed around engine for air leaks and plugs to look for spark trying to ground to engine! I've tried new spark plugs! Put 3 different...

I will give her a go!@

It's running now governor working With dash at slow idle can get it to idle almost where I want it but have to push to idle screw a little That is without the spring that goes to tang That spring gives to much tension and will pull up to higher idle speeds This all with air cleaner off If I...

Latest i have spark at eack plug Engine still rough Trying to get it to idle right

Yes coil Magnatron!

Ok its not the coil! It did start on with just one wire on each plug individually?

Ok new problem Only running on one cylinder?? Found by accident Pulled plugs to check them one dirtier than other cleaned it up a bit put back in and engine running perfectly! Then I looked and saw forgot to put wire on the dirtier plug side! Put it back on engine runs rougher! Pulled other...

I went the long way around on this one But know how change a governor now! haha Now need to see if i can adjust everything to get engine to smooth out!

Messing with linkages getting close idle is rough!

Ok I got it Its running rough with new carb So need to adjust some things! Maybe i can send a video of how it sounds?? I need to adjust spring to the tang and that is close to where it needs to be just a bit rough over all idle!

I thin Think I made some headway! I hope i wasn't this dumb but I removed wire from dog leg to the adjustment screw this allowed the governor arm to travel further to counter-clockwise and hopefully closer to thimble for static adjustment!! Start engine and the throttle plate is closing i...

I have done this Wire on governor arm and I can close throttle plate to bring it to idle! When running! The throttle control will not let it go to idle because of governor spring From what I have read the throttle plate is always held at WOT

I'm trying to take all this info and apply it! Yes wish I had a pair of knowlegable eyes to see what's up with this engine! I think this is a good engine if I can figure it out! I'll keep plugging at it!

I had the original carb on it when I first got it running but put another carb on CHINA I will take a look at it tomorrow I cleaned up the original carb to put back on i don't know if it is actually the right carb?? Anyway i will get some pics! I do have another Briggs carburetor looks like it...

I have adjusted it so many times each way. That it's driving me crazy. There's no way that I could have got it wrong after doing it. So many times testing it each time, it's very frustrating, but I just don't think it's working right!! All I can do is keep trying And my knowledge comes from just...

Here is my video I feel kinda defeated but maybe still be some good info for someone! At least it shows some detail of this engine opened that i haven't seen! Now have to figure what to do next!

Yes I understood after reading again Anyway Got it back together same thing!! Adjusted governor Running wild i videoed my whole reinstall hoping it could help someone and maybe it still will How to or not how to video but I can't see how it could be done any other way! I don't know what else...

Yes shaft looks good and thimble and weights spin free ! Not sure what you mean by the thin wire? To probe or feel for gears properly meshing between cam and governor gear! Anyway again thanks to your help and explanation I think im in the right track Hopefully it works this time around!!

Just found this video End of video this guy shows camshaft side of engine and tab looks just like mine same orientation! Now im confused

Added a picture of arm and tab I can take more if it helps

Got it apart and this is how the arm tab has looked each time! And first time I opened engine governor was in place and arm the same! When I removed springs it was still wide open! Have tried adjustment on governor every which way I'm trying to stay persistent the motor fires right up so its...

Thanks I know how the governor operates! More now than ever I have read and watched more videos than I could imagine I will be going back in and paying more attention to detail! This will be my 3rd time inside this engine so hopefully it is a charm! Thank You for taking time for the detailed...

Ok went through more tests and all suggestions for my problem! No change Just to clarify when I remove springs from governor arm the engine should go to idle?? Mine dose not ! I am going to open the engine up again this weekend and see if governor came off when reinstalling or the governor arm...

I have watched that video and every video on static adjustment tried to adjust both ways! My Govenor arm moves throttle plate as it should open an closed with engine at idle! The other thing is if you turn the governor shaft the opposite direction the arm locks up so you know it won't work that...

This maybe my problem but I missed your reply before doing work on my engine! I'm going to have to take pictures because everything looks good inside! Now ready to pull for 4th time! I don't know what else can be causing my problem! Edit i did reply to your post but i guess I just assumed...

Well im totally lost New Governor in everything looked fine no bent arm the governor did come loose and keeper ring had come off so I don't know if that happened when I put back together last time But there was absolutely nothing wrong with original governor But put new one on to try it Made...

Ok after further review I have to take engine off and dive back in I have exhausted all tests! So when I open it up again unless anything changed I will see what was an intact govenor So what should I look for beyond everyone's suggestions? Maybe governor arm is not in the right place or bent...

I never changed or moved anything So hopefully it was right

Thanks everyone for all the great ideas! I will continue to try all these suggestions and put them to practice hopefully don't have to open her up again but that's not to difficult! If i do I put a new sump gasket in literally a week ago when I had it opened up! Should I get a new gasket or...

Thanks all useful info I just have to keep searching for answers !

I hope someone that has this engine chimes in on this before I open this thing up again! Manual doesn't explain this and I can't find a video showing the console movement in relation to throttle control opening and closing throttle plate I can see how it would work but just seems that its not...

One more thing Should the manual throttle control from dash or console move the throttle plate from closed to open 🤔 I asked this question before my OHV engines do this one is not? Or is the throttle plate always held open by governor arm and spring weather in Turtle 🐢 or rabbit 🐇??? This one...

So i was using wire to pull governor arm to idle so I guess I was doing what governor is supposed to do? Ok all good suggestions Can't be adjustment I've tried every which way to Sunday! Will try the spring removal test!

Everything you mentioned i have done All springs in place ect The original carb is fine and put new one on to test that way! The engine was opened as my earlier post indicated to find governor in tact! The governor spring pulls trottle plate to wide open! Today I put a wire on governor arm to...