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Help me identify this big bore kit?

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Have cylinder and piston but no idea who makes the cylinder.

JE PISTON - PART#183051

ALSO SAYS 993M inside the piston.

Cylinder - no aftermarket marking that i can see

pics:

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have you measured the bore and piston ?

the cylinder could be M/Tech or namura other

i havent because i dont have the proper tool to get an accur ate measure :smirk:

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yep - could be namura, cw or mt cylinder. my cw cylinder had an ink stamp on the portion of the sleeve that goes into the bottom end. i forget exactly what it said. i think it did have "cw" & some #'s lol

cross hatching looks good on the cylinder wall from what i can see.

je makes good pistons.

should measure approx. 3.700" for 94 mm cylinder

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yep - could be namura, cw or mt cylinder. my cw cylinder had an ink stamp on the portion of the sleeve that goes into the bottom end. i forget exactly what it said. i think it did have "cw" & some #'s lol

cross hatching looks good on the cylinder wall from what i can see.

je makes good pistons.

should measure approx. 3.700" for 94 mm cylinder

the wall is in pretty good shape, nothing that a fingernail grabs onto. The piston skirt is scored though....motor trashed a lower rod bearing.

I could just take the cylinder to pompton honda and they can measure it right?

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My Milenium cyl has a number stamped(Punched in) on the side of it.

ok good to know, i'll double check and if nothing, that rules millenium out.

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the wall is in pretty good shape, nothing that a fingernail grabs onto. The piston skirt is scored though....motor trashed a lower rod bearing.

I could just take the cylinder to pompton honda and they can measure it right?

they should be able to measure it for you.

are you wanting to measure to determine the bore size so you can buy a new piston? if so, a ruler would prob cut it. if there's no signs of wear on the cylinder walls, it's prob ok. or are you wanting to measure to closely inspect the bore?

i could help out if needed. have calipers @ home, or i could grab a caliper from work no problem if you're just looking to confirm the bore.

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It looks like my Namura cylinder, if the breather is silver, then it's 99% a Namura. It can be 90mm or 94mm.

Right Smias? :smirk:

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