Gear oil for MC21

**Thu Oct 14, 2004 5:18 pm » Post: #1 » Download Post**

I'm fairly new to NSR.I have a '92 MC21 and want to change the gear oil. What kind of oil and weight (90W?)do you use? How many quarts do I need and how often do I need to change it? Thanks in advance.

**Fri Oct 15, 2004 6:25 am » Post: #2 » Download Post**

i use mopul 2t gearbox oil, from memory its like 750ml so what ever ya conversion is. Dont overfill it though like the guy at the bike shop did with mine. all 2 1/2 overfull

**Fri Oct 15, 2004 6:43 am » Post: #3 » Download Post**

I think I've got ATF oil in mine, and the quantity is dependant on your clutch - mine's dry so there's less oil in there - fill it to the right level by the dipstick.
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MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball

**Tue Oct 19, 2004 12:18 am » Post: #4 » Download Post**

I also use 2T Motul Transoil Expert 10W40. From what I've been told 750ml-800ml is about right. It's a pain in the arse when it's time to top up and your dip stick is broken Mad

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Jerry Lai
NSR250 [MC21SP]

**Tue Oct 19, 2004 3:37 am » Post: #5 » Download Post**

Are you sure your dipstick is broken? I ask because the stock dipstick is kind of funky looking - looks like it could be broken but actually isn't.
-Jim

P.S. FWIW, i usually get about 700 ml in on a gear oil change.
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-Jim
'93 MC21

**Tue Oct 19, 2004 4:27 am » Post: #6 » Download Post**

Well, there's no stick attached to the end cap Sad

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Jerry Lai
NSR250 [MC21SP]

**Tue Oct 19, 2004 4:38 am » Post: #7 » Download Post**

ugh, if there's no stick at all, then yeah, it sounds broken alright - sorry.
-Jim
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-Jim
'93 MC21

**Tue Oct 19, 2004 4:45 am » Post: #8 » Download Post**

I might rig up my own home made dipstick (ala straightened wire coat hanger cut to length)... whattaya reckon? Laughing

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Jerry Lai
NSR250 [MC21SP]

**Tue Oct 19, 2004 6:12 am » Post: #9 » Download Post**

yep i have a broken dipstick as well pain in the bum!!!

**Wed Oct 20, 2004 5:49 am » Post: #10 » Download Post**

Just want to thank everyone for replying. I haven't even look to see if I have dipstick Mr. Green

I'll try to change it before my trackday next month.

**Wed Oct 20, 2004 5:52 am » Post: #11 » Download Post**

Anonymous wrote:Just want to thank everyone for replying. I haven't even look to see if I have dipstick I'll try to change it before my trackday next month.

ops.....forgot to login Embarassed

**Wed Oct 20, 2004 6:52 am » Post: #12 » Download Post**

Do TYGA do replacement caps with built in dipsticks?
_________________
MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball

**Wed Oct 20, 2004 2:24 pm » Post: #13 » Download Post**

I'd be very surprised if you all have broken dipsticks... the dipstick is very short and can "look" broken!

I'll see if I can post a photo or if there's a picture in the manual to scan.

Andy.
NSR-WORLD.COM

**Thu Nov 11, 2004 10:26 am » Post: #14 » Download Post**

I just changed the gear oil on my MC21. When I openrd the filler cap before I remove drain plug, about 200-300ml of oil came out of the filler hole. I just put about 800ml of new oil like you guys said. Was the previous owner overfilled it?

p.s how do I post a photo?[/url]

**Thu Nov 11, 2004 10:32 am » Post: #15 » Download Post**

i should think the last owner filled the gear box up to the level on the dip stick, with the bike on the side stand.