OHH60 Linkage problems?

[Gidds]

Hi there
Recently bought a YerfDog for short money. It seems to run at full throttle but I can't get it to idol. My first though was the Carb, so without a rebuild kit, i cleaned up what i could, main jet and other little jet in the front, hit everything i could get too with carb cleaner... No help (so i might need a carb or carb kit). If i hold down on the primer, i can almost get it to idol.

But when i was poking around, i found someone has messed with the lower linkage. I've found some pictures here that have similar setups, but just not the same. I don't have that tab that long paperclip looking link goes through, so i'm not sure what exactly mine should look like or if the wrong linkage would keep me from idling (i've a feeling a spring in the link would help it from stalling).

Any help would be great!
Thanks

 

[Gidds]

This is the picture that i found that is similar, but the piece i circled...

 

[Poboy kartman]

Those Tecumseh OHH engines have a throttle linkage set-up that defies logic........I'll see if I can post up some pictures or direct you to the manual that shows the proper set-up.......

Basically. ...there is a short "S" hook from the carb butterfly arm to the governor arm. .....and a long armed spring from the bottom of the governor arm to the throttle plate. ... (which transfers the cable pressure from the accelerator pedal to the throttle plate)....which changes the spring pressure. ....effectively negating the effect of the governor. ....until it reaches a certain rpm...when it overpowers the spring and slows the engine back down. ....

 

[Gidds]

So the picture in my second post isn't right? It can't get much worse than that mess... I hope

I've still got the S hook up top at least but I'd greatly appreciate any pictures you can post of what I need and what holes I should be using!

Thanks!!

 

[Poboy kartman]

Actually. ...what I'm seeing looks right. ....

 

[Gidds]

So your saying the picture in post #2 is what I should have?
Even though I don't have the bracket I circled in red?

 

[Poboy kartman]

So your saying the picture in post #2 is what I should have?
Even though I don't have the bracket I circled in red?

Yeah I'm saying pic #2 looks like the correct set-up....here's some pictures that I took of mine:

 

[Gidds]

Thanks for the pictures!
I found the part numbers for both pieces and will have to order them.
Yours is setup a little different then other pictures I've seen.
The right side of the long spring looks like its hooked over a screw, I assume it's not tightened down but just guides it?

 

[Poboy kartman]

Thanks for the pictures!
I found the part numbers for both pieces and will have to order them.
Yours is setup a little different then other pictures I've seen.
The right side of the long spring looks like its hooked over a screw, I assume it's not tightened down but just guides it?

Yeah. ..it's not supposed to be....according to the manual. ...it just goes through the hole in the bracket. ...but I didn't see how that could possibly work....so I hooked it over the throttle cable screw and it seems to work fine that way. ...

Those pieces were missing when I got that kart and the engine was in pieces.....it was a bit of a chore to get it back together!

 

[Gidds]

The weird thing is I don't even have that bracket with a hole in or that screw you hooked it over.
But I'll get the parts and figure it out from there I guess.
What a weird setup!

Thanks again!

 

[woopwoop]

So would the linkage be the problem with it idling with the primer bulb pushed? I also have an OHH60 engine and the previous owner had completely removed the linkage and direct connected the throttle to the butterfly. I have the same issue where the engine will only stay idling if I constantly press the primer bulb. If I hold it in it will idle for a little bit and then die, but if i keep pressing it fairly fast it will idle indefinitely. Any suggestions?

 

[Russ2251]

There is no connection between primer bulb and linkage.
Carb is fouled in some way that is prohibiting proper fuel flow. Usually, Tecumseh carbs will misbehave because fuel was not completely drained when last operated.
The only remedy is to disassemble and thoroughly clean.

 

[Gidds]

I did a partial clean on the carb, everything I could do without a kit, no help.
Bought a cheap new carb on amazon $28, started on the first pull and is puring very nicely!
Waiting for new linkage now, but I don't think the new linkage will work, using the jury-rig setup for now with good results!

 

[Russ2251]

Keep in mind that replacement carb is very likely not OEM, but is a Chinese knockoff.
A standard carb rebuild kit will not work if the need for rebuild arises.
Keep your old carb handy. I have a gut feeling you'll be needing it.

 

[Gidds]

No its not, the OEM carb was like $80, so i could almost buy three of these knockoffs for that I guess.
I was wondering if the rebuild kit would work on this knockoff, question answered before I could even ask it!!
Thanks Russ!

 

[Poboy kartman]

The two biggest words in the English language with the shortest amount of letters....if and maybe.....

Here's the thing. ...those Tecumseh carbs are notorious for not only causing problems.....but becoming useless to rebuild......

They have some kind of little check-ball.....or some crap. ...that's built into the body of the carb during manufacturing.....and after you strip the carb down as far as you can....if you shake it ......and it doesn't rattle internally. ...it's toast...and only good to bean Canadians with when they visit on culture exchange visits. ....So they can see how people who haven't suffered brain freeze for 6 months out of the year do what y'all can't. ...

JK.....It's all in good fun. ....

 

[Gidds]

With the cost of a rebuild kit (that may or may not work), then say the old red primer bulb goes, I'm around $20 right there... I figured its worth taking a chance on the Chinese!

So long as those Canadians of yours are Montreal fans, I'm IN !!

 

[Poboy kartman]

Where are you from?

 

[Poboy kartman]

Btw....What I was trying to say is very often those factory Tecumseh carbs cannot be rebuilt. ...So who the **** cares whether a rebuild kit works on the kock-offs.....since ....you are out way cheaper .....and if I'm not mistaken. ..I'd say we were on the same page .....right?

 

[Gidds]

Where are you from?

Boston