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Enduro Intake/Carburetion - 2 stroke Jetting, Reeds, Air Filters, etc.


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  #41  
Old 09-03-2013, 01:58 PM
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troffer88 troffer88 is offline
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I haven't measured the 250 rod length so no help there , I also have my head done and Scalvini exhaust so they would be different more than likely


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  #42  
Old 09-03-2013, 02:08 PM
AZRickD AZRickD is offline
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My head was RB-modded to a modest 1.33mm squish.

I might cut my Q-Stealth down 4.25 inches.
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  #43  
Old 09-03-2013, 02:45 PM
AZRickD AZRickD is offline
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I have ordered one from Lectron. Thx.
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  #44  
Old 09-03-2013, 03:30 PM
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Good work Rick. Give it a go and see what you think. I'm not sure if Dave ran the stock power jet or a shorter one with the MS3 either.
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  #45  
Old 09-03-2013, 04:01 PM
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I can't imagine it working with the shorter tube. It needs that Dial-a-Jet beastie kicking in.
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  #46  
Old 09-06-2013, 09:09 PM
AZRickD AZRickD is offline
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I cranked the MS-3 Rod in one-full turn.

Definitely more spunky off bottom. Didn't need (or like) the choke.

I was speculating that I'd need to adjust the PowerJet, but it didn't need it after it warmed up.

I won't be riding in the same place tomorrow so no 1,000 yard uphill sand wash test.

One of the leanish things I noticed before was that when the bike came off a high-speed run or a long climb, it would idle with that arhythmic staccato pa-pah-pah-dum-dum-dummmm. Let's see if that's gone.
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  #47  
Old 09-06-2013, 09:24 PM
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One full turn is a pretty significant adjustment.
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  #48  
Old 09-06-2013, 09:30 PM
AZRickD AZRickD is offline
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Supposedly not so significant on the MS-3. Somebody was saying that it was 2 to 1 or 3 to 1 in comparison to the standard Lectron 3-1 rod.

So, take *that* Mr. Jakobi !!
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  #49  
Old 09-07-2013, 01:12 PM
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The adjustment helped somewhat with the staccato idle but I could still sense some mid-range flatness.

Additionally, the plastic float bowl is weeping on the left side. You will see a bit of curvature in the photo. The right side is flat and dry.
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  #50  
Old 09-07-2013, 05:32 PM
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Hahah! Got me Rick! I do recall Kelly mentioning the initial taper was less aggressive than the conventional MRs.

I wonder if the float bowl leak is also acting as an air leak? Have you removed or retightened the screws? I recall that the one I had wasn't completely level where it mated but didn't leak like that. I always thought that overtightening could somewhat skew the shape.
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