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VM28SS Carb Help

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njwmct
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VM28SS Carb Help

#1 PostAuthor: njwmct » Sat Feb 08, 2014 12:16 pm

I'm just in the process of rebuilding my Mark 2 carbs.
My problem concerns the Needle jets.
I purchased 4 genuine Mikuni Jets from Allens Performance.
On replacement 3 of the jets are a nice 'push-fit' & had to be tapped lightly into place.

But one of the jets is a loose fit.

I'm not sure whether this is a problem or not, as the main jet holder / emulsion tube seems to hold the needle jet in place.

Do I need to get another jet or is this OK?
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#2 PostAuthor: z1bman » Sat Feb 08, 2014 12:27 pm

unless its as loose as a prick in a shirt sleeve i would leave it as it is the emulsion tube should prevent it moving
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#3 PostAuthor: njwmct » Sat Feb 08, 2014 12:30 pm

z1bman wrote:unless its as loose as a prick in a shirt sleeve i would leave it as it is the emulsion tube should prevent it moving


The Jet will fall in / out if you turn the carb over - but once the emulsion tube is in place it doesn't seem to rattle around.
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#4 PostAuthor: z1bman » Sat Feb 08, 2014 12:33 pm

it will be fine i would leave it as it is
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#5 PostAuthor: njwmct » Sat Feb 08, 2014 12:34 pm

z1bman wrote:it will be fine i would leave it as it is


Thanks for your help.
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#6 PostAuthor: z1bman » Sat Feb 08, 2014 12:42 pm

as the jet is stepped it seals on this part of the jet & shouldn't cause any fuel to leak past the outer part of the jet which you say is loose
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#7 PostAuthor: njwmct » Sat Feb 08, 2014 1:25 pm

z1bman wrote:as the jet is stepped it seals on this part of the jet & shouldn't cause any fuel to leak past the outer part of the jet which you say is loose


OK - sounds good - thanks again
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