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Newbie gearbox oil questions


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tychver

 
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Newbie gearbox oil questions

Thu Dec 22, 2011 9:43 am » Post: #1 » Download Post

New NSR owner... Was stupid enough to buy an MC18.
Is the gearbox oil level supposed to be up to the nib on the cap when the bike is on the stand or when upright?

My bellypan is full of gunk/oil. Is this a leak or general two stroke gunge? I'm worried I've got a leak somewhere from the gearbox. I don't think into the crankcase as it's leaking outside rather than burning it? It might not be. This is my second bike and my first stroker so I'm a bit lost right now.

Apologies for the poor photo I took it in the dark with my phone

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Dave Ett
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Thu Dec 22, 2011 10:39 am » Post: #2 » Download Post

Looks like general 2 stroke spooge to me.
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tychver

 
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Thu Dec 22, 2011 6:03 pm » Post: #3 » Download Post

Dave Ett wrote:Looks like general 2 stroke spooge to me.

Would that drip onto the ground under the bike?
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Andy
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Thu Dec 22, 2011 6:05 pm » Post: #4 » Download Post

That "oil" on the expansion chamber is most likely from the front sprocket/chain, if you ask me.
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TuckerBag

 
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Thu Dec 22, 2011 6:41 pm » Post: #5 » Download Post

When checking the oil level, have the bike upright, not on the side stand.
The oil should come up to the top of the cross hatch pattern on the (very short) dip stick.
But I have to admit, I do not know if you are supposed to screw the filler cap into the case when checking the gearbox oil level, or just sit it on the top of the threads.
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tychver

 
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Fri Dec 23, 2011 10:48 am » Post: #6 » Download Post

Hmmm. New problem. It stopped running on the lower cylinder after I accidentally left the fuel petcock on overnight. Plug was black and rather covered in fuel. Plug now doesn't spark even against the head but was running on lower cylinder before. Fingers crossed it'll go properly in the morning with a new plug and without the lower cylinder being full of fuel!

I think I might have fouled the plug in the first place by riding like a nancy. I tend to tick along at 5k but by the sounds of it it'll run better if I drop down a gear and fang it?
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Dave Ett
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Fri Dec 23, 2011 11:51 am » Post: #7 » Download Post

Sounds like your right hand carb needle valve hasn't seated properly, flooding the cylinder...
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tychver

 
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Sun Dec 25, 2011 8:49 am » Post: #8 » Download Post

Dave Ett wrote:Sounds like your right hand carb needle valve hasn't seated properly, flooding the cylinder...


I took the thing apart. That extra oil on the left hand expansion chamber turned out to the oil from the injector pump that should have been going to one of the cylinders. Hence smoke from the right and not from the left. Got smoke from both now Smile Good job I did decide to investigate the oil!
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