Super H Carburetors

glampman · Aug 15, 2013

My Super H has a 358065R91 zenith carb, I see there are also 358065R92 zenith carb listed on some sites for working a super H.

What is the difference, will the ..R92 carb work fine on the intake manifold, or is there a difference. Stumped can't find an answer online.

Going to look at a ...R91 swap tomorrow, but the ... R92 seem to be less expensive. Any quick help appreciated.

Drop me an email. thanks greg

CNKS · Aug 15, 2013

Those carbs are not Zenith, they were made by IH. R92 is simply some kind of upgrade for R91. If Dave Slater reads this he will probably know. For all practical purposes it makes no difference. R92 is downward compatible with R91, in this case R91 is probably compatible with R92. Zenith was used on the A/B/C and similar models. Anyway, what is wrong with yours, cleaning and putting a kit in is simple.

D Slater · Aug 16, 2013

Never had my hands on a R92. Being curious I always check for changes when I have one apart. After all the years its easy to find different size parts in the same carburetors. 1/16 bit seems to be a favorite size for people drilling the main jet or seat with. That's why adjusting some by the owners manual doesn't work anymore.
Have 4 358065R91 carburetors now and none of them are exactly the same. That's after checking the size of the main jet, discharge jet tip and hole sizes, air bleed and idle jet.
Like you I think a R91 or 92 will work the same and the same carburetor kit would fit both.

Super H Carburetors

glampman

New User

CNKS

Well-known Member

D Slater

Well-known Member

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