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M35 Vs M74 ?

Moderators: Curt!, Pa

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knk45

Posts: 31

Joined: Wed Mar 08, 2000 1:01 am

Location: Paris ::: France

Post Sat Mar 11, 2000 3:35 am

M35 Vs M74 ?

I'm restoring a 1945 F knucklehead. It's all stock, but of course, I couldn't resist putting a hotter cam and high compression pistons in there. I want to keep a Linkert. I have an M-74 and an M-35. I'd like to keep the M-35 (appropriate for that year), even though I know the M-74 will work better. Do you guys think I can keep the M-35 body and put all the M-74 internals in it?
Eric
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Tom Roop

Posts: 157

Joined: Sun Jan 30, 2000 1:01 am

Location: Daly City, CA, U.S.A.

Post Sat Mar 11, 2000 8:18 am

Unless you are going to have the bike judged at a show, why ruin two Carbs?

Just run the M74 for the perfomance and keep the M35 on the shelf for authintisity .

The Venturi is larger in the M74 at 1 5/16" and the M35 venturi is 1 1/8".

The Throttle Disc Angles are different with the M74 at 9 and the M 35 at 12, these and a few other specs are different according to Shop Data on the Model M Linkert Carburators in the Panhead Service Manual 1948-1957 Rigid Copyright T.Noel 1972.

Good Luck,

Tom (00)




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panic

Post Sat Mar 11, 2000 5:12 pm

Don't bother - can't be converted, the air correction management and main nozzle are very different, need these for the improvements. M36 & 45 can be done if you have all the parts, but not older bodies.
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rein

Posts: 109

Joined: Thu Mar 09, 2000 1:01 am

Location: holland

Post Sat Mar 11, 2000 7:07 pm

just put the m35(1941-48 E+EL,1942-1948 F+FL) on and see if the performance satisfies you,could be sufficient, and bike stays more original what i think must always be preferred. M45 has larger venturi,has 9degr.disc angle,and belongs on late 1949-early 1950F+FL,is also not original for your type,but looks the same as your M35,and is maybe more suitable to use in case you don t like the M35 performance (all carb.data to be found in :''how to restore your harley davidson"',page 268-269
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knk45

Posts: 31

Joined: Wed Mar 08, 2000 1:01 am

Location: Paris ::: France

Post Sat Mar 11, 2000 9:56 pm

Hey Panic,
Ok, ok, I won't switch ALL the internals. But what about if I just switch the disc (use the 9° disc for richer mixture) and the venturi. Would that do any good?
Eric

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