twin carb linkage

[two benders steve]

hi , i have fitted my new 2.1 twin carb engine in today yippy! one of the few problems i;ve come accross is that i carn't get full throttle, i have even bent in the tab on the end of the peddle but still short by 1/2" of travel (probably a good thing so i don't nail it!) any clever ideas ?

 

[Joval]

What linkage? Can you get full throttle by hand in the engine bay?

 

[ant]

i have the same prob steve, but on a progressive carb just can't seem to get enough "pull" to fully open up the throttle :?:

 

[two benders steve]

hi, yes i can get full throttle by hand , i guess i'll have to lengthen one of the levers (linkage) under the cab floor. I don't know what make the linkage is but it's very similar to the cb one, still goes like **** for 3/4 throttle!
Hi Ant have you bent down the tab on the top underside of ya gas pedal it gave an extra bit of travel, p.s i.ve been bumping into a few people in and around Stafford with early bays, come spring time i think there's guna be more than 10 early bays at the club meet's !

 

[VWAIRCOOLED]

i have the same prob steve, but on a progressive carb just can't seem to get enough "pull" to fully open up the throttle :?:

I've got the same thing on my progressive weber at the moment,the second butterfly doesn't even open! I drove it 200 miles the other day like that,a bit slow up hills.I've got a very sloppy linkage under the accelerator pedal,so hopefully sorting that out will help.If not like Steve says I'm going to have to lengthen operating rod by welding an extension on.

 

[ant]

thats cool steve i only know of yours mine and that fella on the stone road..... i've bent the pedal flap which helped a little, but i need to replace the linkage to so hopefully that will sort it...... saves fuel tho

 

[surf]

I had same problem with the progressive weber, fitted twin IDF's to cure the problem at least that's what I told the Mrs. :twisted:

 

[pete nice]

You can drill another hole in the linkage under the front cab floor to increase the leverage. It might make the throttle a bit on or off though.

Post a photo of how the linkage is set in the engine bay, there might be other positions it can go to help.

 

[speedwell68]

You can drill another hole in the linkage under the front cab floor to increase the leverage. It might make the throttle a bit on or off though.

Post a photo of how the linkage is set in the engine bay, there might be other positions it can go to help.

Different years have different length cables. There is a '68 only one. On my '68 with baby dells we had the stock '68 cable I couldn't get full throttle. So we tried the one from a '71 I think and all was well.