Side draft carb on tecumseh

[70chevrolet]

BACK IN THE 70'S, RUPP MADE A BIKE CALLED THE BLACK WIDOW RUNNING A UA19S DELLORTO SIDE DRAFT CARB ON A TECUMSEH HS40 MOTOR. HOWEVER IN MODERN TIMES, THESE CARBS ARE ALL EITHER TOO EXPENSIVE OR ELSE TOO HARD TO FIND. I WAS WONDERING IF ANYONE KNOWS OF A CLONE CARB THAT WOULD PERFORM IN A SIMILAR MANOR TO THE DELLORTO UA19S. THERE ARE SO MANY CHINESE, JAPANESE & ITALIAN SIDE DRAFT CARBS THAT COME IN 19/20/21 & 22mm THAT I DONT EVEN KNOW WHERE TO START. I AM FARMILIAR WITH JETTING AND HOW TO ADJUST UP AND DOWN TO DIAL IT IN. I AM AN ACE AT MOUNTING, SO I CAN MOUNT ANYTHING TO ANYTHING.... BUT, I WAS HOPING THAT SOMEONE MAY HAVE BLUEPRINTED THIS AND WOULD BE WILLING TO SHARE WHAT THEY ARE RUNNING.
THANKS
MIKE

 

[cncsparky]

Some people around here have done that. Search the forums for it. From what I've gathered, a clone 19mm or so would work good on a HS40 or 50.

 

[DreyeIce]

i have seen people use a mikuni carb, like a 22mm or 21mm, you mean like that? the delrotto was a slide carb, right? the mikuni makes a slide carb,

i actually have a vintage delrotto carb in my shed off an old ducati cadet motorcycle, i have an HS40,,, this gives me ideas for it :blink:,,

 

[The Restore Kid]

I have a bunch of Kei Hin and Mikunni type slide carbs about the right size for a 40 or 50... They are on most any older dirt bike, 3 wheeler, that kind of stuff..

 

[minibikedude]

I put a Kiehin clone 20mm on my Tecumseh HS50 on my Rupp Hustler for that reason Dellotos are too much money.

 

[70chevrolet]

I put a Kiehin clone 20mm on my Tecumseh HS50 on my Rupp Hustler for that reason Dellotos are too much money.

are you running a straight pipe also?
what driver are you running in that pic?

 

[minibikedude]

Yes, 1/8 OD straight pipe,Black widow style. Driver is a Salsbury 330

 

[125ccCrazy]

Yes, 1/8 OD straight pipe,Black widow style. Driver is a Salsbury 330

1/8?? think you forgot the 1 LOL

is that a pz20?

 

[minibikedude]

Me bad, 1-1/8 is correct. And I think the carb is a pz20, Does that driver look familiar.:wink:

 

[125ccCrazy]

Me bad, 1-1/8 is correct. And I think the carb is a pz20, Does that driver look familiar.:wink:

is that the one you got from me??

 

[Shorty]

Just wondering. Isn't that air filter kind of small?

 

[DreyeIce]

it does look tiny.....


whats the advantage to butterfly vs. slide carbs?

better airflow? if so, why dont they use them on 1:1 cars? what makes them good?

 

[Runninlate]

I put a Kiehin clone 20mm on my Tecumseh HS50 on my Rupp Hustler for that reason Dellotos are too much money.

Minibikedude, did you fabricate the intake?