MTFCA Forum

I have found a few posts on this topic, but no clear answer to the problem. I am installing Lang's NH conversion kit and it appears the over-the-top throttle linkage is too short. Because this issue has came up before, I am surprised this hasn't been addressed by Lang's in the instructions. I can't help but wonder if the 2nd hole in the carb throttle lever bracket might play a role? What else would that hole be for? Anyone have any insight on this issue?
The first picture shows throttle at idle and 2nd hole in bracket. The 2nd picture shows the short length with throttle lever fully raised.

the 2nd hole is if you have a pre '25 carb with a longer throttle lever

the throttle rod is short because (it looks like) you have a home-made throttle lever possibly welded in an incorrect position on your column's throttle lever rod. At least that's what it looks like.

There was/is a clamp-on throttle lead available that was/is used for Vaporizer carburetor for blocks not supplied with the throttle rod hole in the center of the block. I might have a clamp-on lead around here.

Scott_Conger wrote: ↑

Sat Feb 19, 2022 2:46 pm

the 2nd hole is if you have a pre '25 carb with a longer throttle lever

the throttle rod is short because (it looks like) you have a home-made throttle lever possibly welded in an incorrect position on your column's throttle lever rod. At least that's what it looks like.

I think you are correct now that I look at it closer. And the throttle linkage rod for my vaporizer looks homemade.
The throttle lever rod has the means to connect a linkage for the thru-block method, but my block does not have the hole. Looks like someone welded on the higher lever for the over-the-top vaporizer.

Pretty much what I figured.
Just make an appropriate rod with a jog to go around the coil box and you're golden

Scott_Conger wrote: ↑

Sat Feb 19, 2022 3:37 pm

Pretty much what I figured.
Just make an appropriate rod with a jog to go around the coil box and you're golden.

Yep, looks like that would be the easiest/cheapest method. The homemade rod for my vaporizer looks like it will be long enough to modify for the NH possibly. And now that I know it's not the original vaporizer rod, I won't feel bad modifying it. Thank you Scott!

I recently opened up the throttle rod hole in a '27 block - there was actually an "outline" of the appropriate hole size cast into the valve side of the block - drilled a 5/8" hole and cleaned up the residual with a Dremel grinding wheel.