Fork Oil and Seals...

**Wed Jun 18, 2008 9:29 am » Post: #1 » Download Post**

Do any of you guys know how much fork oil each leg of an MC21 should hold please? After draining and measuring mine both are different.

And also where I can buy a decent set of fork oil seals? I bought some cheapies off that auction site and after a couple of hours at Cadwell yesterday one had gone again. They did look pretty cheap and nasty when they arrived but I havent been able to find any more.

Cheers.

**Fri Jan 30, 2009 3:55 pm » Post: #2 » Download Post**

Hello mate, I am trying to find out how much oil to put in each leg of my MC18. Did you ever get to the bottom of the problem,?
Cheers

**Fri Jan 30, 2009 4:10 pm » Post: #3 » Download Post**

You can't have been looking that hard!

http://www.nsr-world.com/tuning/250-tuning/suspension/

Maybe that's why no-one answered?! Wink

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Andy.
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**Fri Jan 30, 2009 5:07 pm » Post: #4 » Download Post**

Cheers Andy - simply read the instructions on the can. Should have known. Its -5 degrees in the shed and my brain was obviously malfunctioning. Only problem is I haven't got enough fork oil.

**Fri Jan 30, 2009 6:00 pm » Post: #5 » Download Post**

Yeah, that could be a problem! I personally mix 10w and 15w fork oil, but I'm a little large compared to the average Japanese rider I imagine! Very Happy

If you are closer to the ideal weight for an NSR (50~70kg), or if the suspension has been revalved, then 10w is much better as a thinner oil will always work better than a thicker one.
_________________
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.

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**Sat Jan 31, 2009 2:01 pm » Post: #6 » Download Post**

Better err on the side of the fatter English bloke - off out to get some 15W then. Cheers

**Sat Jan 31, 2009 4:19 pm » Post: #7 » Download Post**

for an mc18 its different levels

mc18 2j and 4j 429cc and 128mm air gap
mc18 r5k 435cc and 136mm air gap

the air gap is measured without springs with the fork leg compressed

**Sun Feb 01, 2009 12:06 pm » Post: #8 » Download Post**

Thanks for the help lads....getting ever nearer to an MOT.
Very Happy