Dreaded "Runs only when choke is on" question

[mmisterbungl]

I've been through this carb, replaced the rubber disk o-ring, blown air, and everything else I normally do to get carbs free flowing but this one is obviously not cooperating. I did search some other threads and found people suggesting poor gas cap venting or air leaks. I've also replaced every gasket from the intake on the block down to the air filter plate. Any other ideas what might be going on here? It will idle very smoothly with choke full on, and the second I open up the choke plate....dies. Non adjustable carb....

Tec H35 Power Sport - YouTube

 

[buckeye]

Sure you aren't closing the choke? On my h50 the way you are doing that, closes the choke.:shrug:

 

[roccosbike]

Non adjustable carb....

Throw it in the weeds and get a fully adjustable one, Thats what I do anyways.I hate those non adjustable carbs,they never seem to work right and you can't do any mods to your engine if your running one.It wont even run right without the airfilter either.It will run lean.

 

[mmisterbungl]

Sure you aren't closing the choke? On my h50 the way you are doing that, closes the choke.:shrug:

Tom, I'm gonna refrain from calling you a dill weed....I can see straight through the carb opening without the air filter on....you dill weed.:laugh:

Non adjustable carb....

Throw it in the weeds and get a fully adjustable one, Thats what I do anyways.I hate those non adjustable carbs,they never seem to work right and you can't do any mods to your engine if your running one.It wont even run right without the airfilter either.It will run lean.

It's heading that direction.

 

[buckeye]

Well, Stupid is as stupid does.:laugh:

As soon as press respond, I went nooooo!!! Come back.:laugh:

 

[mmisterbungl]

The way you see the choke in the vid - pointing toward the shroud - is fully closed.

 

[buckeye]

My h50 is just the opposite. Well, if you are standing on your head backwards.:laugh:

Those carbs are hell. I messed with one forever. Finally gave up and bought a Oregon carb and have never had a issue since.

 

[cruzier81]

Why cant you drill a hole and add a adjustment

 

[roccosbike]

Why cant you drill a hole and add a adjustment

Why can't you have an American made mini bike in your avitar :shrug:

 

[mmisterbungl]

Why can't you have an American made mini bike in your avitar :shrug:

:laugh:

 

[bigevilone2]

Why can't you have an American made mini bike in your avitar :shrug:

I'm gonna be laughing all night on that comment ! :laugh:

 

[buckeye]

Now that's funny!!!!:laugh:

 

[incogrhino]

U.S.A. U.S.A.

some people dont need more than 49cc's. Dont hate. :laugh:

 

[Neck]

I give up?!

 

[gumpit]

gap?

 

[Havasu Dave]

Why can't you have an American made mini bike in your avitar :shrug:

Harley doesn't put their name on just anything. :thumbsup:

 

[Square_Chopper]

Why can't you have an American made mini bike in your avitar :shrug:

:lol::lol::lol::lol:

 

[Neck]

Will it run with the choke off at higher RPM's?

 

[mmisterbungl]

gap?

I'll have to check...

Will it run with the choke off at higher RPM's?

I've tried revving it as Im gradually opening the choke and it still dies out while I'm opening up choke, even if I can get it to higher RPM.

 

[mrpat]

I had the same type of problem. I bought a new carb off eBay and it runs great now.