No not the Coldplay album the 2 little connectors between the air solenoids and the carbs. Do these have jets in them or are they just a method of connecting the pipes ?
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MC21R ; MC21SP , plus some other none Honda 2t's

They have jets in them

Cheers for that

Does any one know what size and type the jets are ?

Usually 0.8mm & 1.8mm, and there's no part number for the jets.

That being said, although there's only one X-piece and one Y-piece listed for the MC21, we've seen varying sized jets (and markings) on stock parts.
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Andy.
NSR-WORLD.COM

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Thanx Andy

Does the 1.8mm goes carb side of the Y section and the .8mm air filter on the X piece ? What about the HRC kit, I assume that has different sizes ?

What I'm thinking is that as a 1.8mm equates to a 180 jet and 0.8mm to 80 jet I was going to get some normal jets, cut the head off and insert them in the pipe.

Cheers

Anyone have an answer for me ?

HRC X and Y's have different sized holes depending on kit, unleaded or leaded.
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If I have to take the carbs off once more...

mellorp wrote:Thanx Andy

Does the 1.8mm goes carb side of the Y section and the .8mm air filter on the X piece ?

Cheers

Any help on the position of the jets and the size of the HRC kit (leaded/unleaded) would be good
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MC21R ; MC21SP , plus some other none Honda 2t's

I found a website that had all the jet size info for the different airjets. I pulled the file down and ran it through a translator. If you PM me your email address i can send you the file.

Andy, you might be interested in cleaning it up and putting it in the member section someplace.
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MC28 SP