Author Topic: Mikuni 40/4mm  (Read 1659 times)

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Offline subarumy98

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Mikuni 40/4mm
« on: October 01, 2009, 02:01:29 am »
HI All

Might have to replace the current 40mm Mikuni on the 500XC - any benefit to going to a 44mm now /
Apart from sucking in small rodents and little kids of course ?



T

Offline farmer58za

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Re: Mikuni 40/4mm
« Reply #1 on: October 01, 2009, 02:43:37 am »
Why are you replacing?
Farmer
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Offline PEZBerq

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Re: Mikuni 40/4mm
« Reply #2 on: October 02, 2009, 05:25:49 pm »
Gidday Subie - I understand the 44 was a difficult carb to tune (velocities lower due to larger bore) and the 40 made the 500 run much better.
Husqvarnas: 78 390AMX, 82 430XC, 84 240WR, 84 500AE, 84 510TE, 87 510TE

lms6201

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Re: Mikuni 40/4mm
« Reply #3 on: October 02, 2009, 08:59:28 pm »
does it use an off the shelf vm40? or are they modified like the yamaha , ie lightened slide , special needle jet and needle , machined /reduced in the casting  spigot , ect ??