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MC28 Oil Change


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prelude2.2
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1996 Honda NSR250 MC28SP
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MC28 Oil Change

Thu Jun 22, 2017 11:17 pm » Post: #1 » Download Post

So I want to change the oil in my MC28. However I have found 2 different spec's on oil amount. can someone please tell me which one is right thanks.

This link says .7l http://nsr-world.com/specs/nsr250/mc28/

and

This link says 1.2l http://www.nsr250.net/history_mc28.html

Also is it correct to add the oil while the bike is upright and not on the side stand???

Thanks guys
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Johnnymac
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Oil

Fri Jun 23, 2017 6:34 am » Post: #2 » Download Post

Hi there
How are you and hows the bike going ?,Arron is regretting selling the 28 big time, dooh,I told him to keep it,
As for the oil it is the .7 L ,I am sure you wouldn't get the 1.2 litres in a dry clutch motor anyway,
All the best
jonmac
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prelude2.2
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Fri Jun 23, 2017 12:21 pm » Post: #3 » Download Post

Thanks, yeah I took the bike for a spin yesterday. I went to lean into a 40 - 50mph bend and as soon as I got down a bit the back end slid out on me to the point where the back tire was nearly perpendicular with the road. Somehow I managed to antisteer and get the bike back inline. It kicked back to the left and then wobbled for a while but i saved it, (with the help of God). Anyway when I got the bike home (with zero confidence in the tire) I inspected it and there was oil all over the back wheel. I noticed it was dripping from one of the overflow pipes. So I opened the oil and it just started flowing out. So somehow there was too much in it. This was all done while the bike was on the stand too. So Im going to drain all of it and put in the .7l
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Johnnymac
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Oil

Sat Jun 24, 2017 5:55 am » Post: #4 » Download Post

Hi Prelude
I had a thought if you havnt changed or added oil to the 28 I think the reason for gearbox oil gain will be the oil seal in the bottom of the oil pump it allows the 2 stroke oil past and it contaminates the gear oil,
The seal often falls out of its recess, I have had this happen a couple of times,I have pressed it back in and gently dented the alli around the seal with a sharp centre punch to hold it firmly in place,
I am sure this will be the culprit,
All the best,
jonmac
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prelude2.2
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Sat Jun 24, 2017 11:46 am » Post: #5 » Download Post

No I didnt change the oil since I got it. You hardly have any diagrams to help me to do this do you?
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bushman
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Re: Oil

Fri Jun 30, 2017 8:47 pm » Post: #6 » Download Post

Johnnymac wrote:Hi Prelude
I had a thought if you havnt changed or added oil to the 28 I think the reason for gearbox oil gain will be the oil seal in the bottom of the oil pump it allows the 2 stroke oil past and it contaminates the gear oil,
The seal often falls out of its recess, I have had this happen a couple of times,I have pressed it back in and gently dented the alli around the seal with a sharp centre punch to hold it firmly in place,
I am sure this will be the culprit,
All the best,
jonmac
Bang on John.
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