10Hp tecumseh Cherry Red MUFFLER!

Status
Not open for further replies.

Blazkowiez

Kart Aficionado
Messages
2,538
Reaction score
48
Location
Houston, Texas
First, I skimmed through all the posts. Solomon, when cleaning a carb, I know you've said its perfectly rebuilt several times, but one of the earlier posters was onto something when he told you to run a wire through the main jet on the main brass piece that goes in the bottom of the carb, sometimes soaking wont do enough, you have to physically remove the gunk.

I see your posted you have a brass piece in the front of the carb covered by a white cap that keeps coming out? It goes in all the way snug, not too tight, and yeah, your engine can run poorly or not idle right if its not clean too! Thats your idle restrictor screw, this has no adjustment, a good deal of these Tecumseh carbs had no adjustments for air fuel mixture, dont try to jet that out, it'll just make the engine run worse, and no they arnt interchangeable from different hps. Dont put the wrong carb on your engine, thats not the solution either, just see that both your brass pieces are in completely clean to where you can shoot carb cleaner in a can through them and they come out all sides. Nearly all smaller Tecumseh engines have this screw, get used to seeing it on your kart and bike engines!

Yeah, lean or rich those mufflers can do strange things, also if a single baffle is collapsed it can do strange things, or if you put a smaller muffler on it it'll act off or run even worse as he said before.

If you engine is backfiring period check the flywheel key and see that its in tact and not damaged (really sorry if someone said this first)

I'm super shocked your engine has points and condensers and looks the way it does, this almost seems unreal, can you please take some pictures so I know its really not electronic?

Briggstwin - if you mean all carbs have some form of adjustment I hope you mean idle speed... a ton of these Tecumseh engines that are on karts, pressure washers, generators, etc only have that.

Linksep - maybe not a "frankencarb", I kinda think thats what it had to begin with and its just not clean. What do you consider rebuilding? I see bad o-rings, gaskets, floats, float bowls, pick up tubes, screens, needles, seats, etc all week long.

I'll ask Robert at the shop tomorrow what his solution to this is because he knows a great deal more than I do about engines. (experience is the key)
 
Last edited:

solomon

Active member
Messages
1,648
Reaction score
8
Location
ca
Wow, thanks for the great post! First off, when i cleaned the carb before i rebuilt it, i was sure nothing was in the jet as i blew through all passages and sprayed carb cleaner through them, but i think it is possible gunk from the tank got inside and clogged it. I will chekc that tomorrow. idle restrictor screw is clean! I checked the key when i cleaned the points on the engine to get a spark. The pull start cover it has is from a newer model. if you want more pics, i dont have an issue with that. And I completely rebuilt the carb, all new gaskets, new o-ring, new seat, needle, The 2 Metal washer things were pulled all passages were cleared and new washer cap things were installed. I do a very good cleaning and rebuilding on small engine carbs. here are the numbers by the way 143-676062 SER 727 (paint chip) D. says craftsman 10hp
 

TurtleMann14

Insane plan member
Messages
265
Reaction score
0
Location
West Virginia
.... didn't you say you did work to the valves?

is it possible that the valves are one notch out and the exhaust is opening before the fuel is done burning?
 

solomon

Active member
Messages
1,648
Reaction score
8
Location
ca
No, the side cover was never removed so the cam could not have been misplaced. I pulled the motor off the gen today. Im going to strip it down all the way, recheck the valve clearance, Check the internals and reassemble. I Also received another carb for the engine. the carb i retrieved is completely adjustable. I have so soak it though. I will right back tomorrow.
 

Blazkowiez

Kart Aficionado
Messages
2,538
Reaction score
48
Location
Houston, Texas
Bob actually agreed with me, he thinks you've had bad mufflers, if your carb is clean, and THERE IS NO ADJUSTMENT on this carb you've most likely had a collapsed baffle in the muffler, we've had that happen before and if everything you say is true that would be a reason for the way its running. See if you cant try a clean, properly sized muffler. Good luck.
 

solomon

Active member
Messages
1,648
Reaction score
8
Location
ca
i posted on here already i tried another muffler, and it was worse on this thing. What should the valve clearance be? Right now the exhaust valve is around .032. i also go t an adjustable carb for it, just soaking it for now, LOOK AT POST 22, thanks
 

Blazkowiez

Kart Aficionado
Messages
2,538
Reaction score
48
Location
Houston, Texas
I already read that post. We believe you had an even worse muffler. When you're working with used parts as it seems you are, assume everything is ruined until proved otherwise.
 

solomon

Active member
Messages
1,648
Reaction score
8
Location
ca
the muffler i used came off an 8hp briggs engine and it never turned red. The plug looks a bit rich to me. What should the valve clearance be, and how do i set the gap between the coil and the flywheel, since the coil is behind the flywheel? thanks
 

Kaptain Krunch

Pro Junk Collector
Messages
4,636
Reaction score
6
Location
vermont
the muffler i used came off an 8hp briggs engine and it never turned red. The plug looks a bit rich to me. What should the valve clearance be, and how do i set the gap between the coil and the flywheel, since the coil is behind the flywheel? thanks

If you used a muffler from a 8, on a 10, that could cause the ****ty running. Too much restriction.
 

solomon

Active member
Messages
1,648
Reaction score
8
Location
ca
Well im still convinced it has timing issues. Again,how do i set the gap? thanks
 

freakboy

the names 'mater
Messages
3,961
Reaction score
2
Location
hick town
wait WHAT???? u sure its just not points ignition? i never heard a coil behind a flywheel before.
 
Status
Not open for further replies.
Top