D cylinder???

**Wed Aug 05, 2009 2:27 am » Post: #1 » Download Post**

Nothing is ever easy for me. I finally figured out what the A, B, C choices mean on Tyga's site and I wanted to get a couple top end kits on the way tonight. Well, I look at the cylinders and what do they say? D ! A search for "D cylinder" in the forum brings back too much info to find an answer on my own. Please help!

Thanks!
Craig
_________________
Craig
MC21 SP Rothmans
MC21 R fake Rothmans - track bike
MC21 SE R9N

**Wed Aug 05, 2009 2:41 am » Post: #2 » Download Post**

For clarification, the numbers I am seeing are on the right side of the cylinders when sitting on the bike. This is not the "opposite side of the exhaust port" as I found described somewhere on the net. The D is stamped on the leftmost side, and 2MB1L273 is on the right side.

Thanks again,
Craig

**Wed Aug 05, 2009 2:53 am » Post: #3 » Download Post**

Go to the Online Parts Manual, open any MC21 cylinder/head page, and click on "notes" in the menu tree. That will show a diagram of where to look, and the piston/barrel combinations.
_________________
Andy.
NSR-WORLD.COM

Please keep all responses to Forum posts on the Forum so that others may benefit.

Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.

Check us out on Facebook! Please "like" our page!

**Wed Aug 05, 2009 2:59 am » Post: #4 » Download Post**

So D means C in Japanese? The confusing part is that I am not sure if I have a D code or a no code. There is nothing where the pic shows, but a D next to it on the side of the cylinder. Man, I need a beer. This is wearing me down.

Thanks Andy! At least I'm getting closer...

Craig

**Wed Aug 05, 2009 11:59 am » Post: #5 » Download Post**

No, the "B", "#" (no mark), and "D" are the piston sizes. Barrels are "A", "B", and "C".

It's often a very light stamp, sometimes only half a letter, on the back of the barrel. You should measure it anyway to see which piston would be best.
_________________
Andy.
NSR-WORLD.COM

Please keep all responses to Forum posts on the Forum so that others may benefit.

Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.

Check us out on Facebook! Please "like" our page!

**Wed Aug 05, 2009 6:23 pm » Post: #6 » Download Post**

You need a parts manual at the least and if you have some extra cash a workshop manual as well, which can be had in English these days. Cool

It has a nice chart of which cylinder goes with which piston and a bunch of other required info.