Author Topic: 42mm Mikuni HSR  (Read 5496 times)

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Offline truckintyler

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42mm Mikuni HSR
« on: October 23, 2019, 09:31:08 PM »
Would a single 42mm Mikuni HSR flat slide be ok or too big for a command twin 44ci with a cam and port job?
 Or would two smaller flat slides like Keihin fcr be best . Not sure which direction to take .

Offline cycloneracer

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Re: 42mm Mikuni HSR
« Reply #1 on: November 22, 2019, 05:52:33 PM »
The engine that Zach Kerber built me had 2 42MM mikunis on it.   I think he sells a kit with the intakes and carbs.   Check his website out.

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Offline Michaelgc7

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Re: 42mm Mikuni HSR
« Reply #2 on: December 06, 2019, 01:04:02 AM »
What would the port work be like? Also what rpms? Cam?
Micheal Carrier

Owner of Carrierperformance.net , lawn mower racing superstore.

Offline truckintyler

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Re: 42mm Mikuni HSR
« Reply #3 on: December 11, 2019, 04:25:11 PM »
just ordered the MWSC 6000 cast cam kit , rods and flat top pistons , rpms ?- this is my first open engine 6000-7500 rpm ?.
 Head work -- pretty much will be an amateur job just cleaning up the ports ,  nothing like the port work you do micheal.
 


Offline Michaelgc7

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Re: 42mm Mikuni HSR
« Reply #4 on: December 13, 2019, 09:04:54 PM »
In that case the carb is more than likely going to be way too big. Try a 36 or a 38 instead. 36 would probably be perfect
Micheal Carrier

Owner of Carrierperformance.net , lawn mower racing superstore.

 

anything