View Full Version : NSR250R mc21 HELP
hurricane_r
8th August 2007, 16:21
just brought a mc21 dry clutch rothmans nsr
just wondering if anyone knows where the oil adjustment screws are
i.e more / less
bimotabob
12th August 2007, 12:13
Hi
Never heard of "oil adjustment screws"
Which oil?
Is yours the SP or SE model?
One of them had special light rims as standard - quite rare.
Regards
xwhatsit
12th August 2007, 15:54
He means the lubrication rate screws on the oil pump, two-stroke and all that (could you imagine having to put pre-mix in an NSR? What a bitch!).
Do they have facility for adjustment? I would've thought Honda of all people would have that set up automatically.
Tim 39
14th August 2007, 10:01
most two strokes have adjustment screws on the oil pump. I'm not sure specificly because my NSR was on premix
bimotabob
14th August 2007, 17:01
Hi
I have never seen "oil adjustment screws" on a 2 stroke oil pump and I have seen plenty but not a NSR oil pump up close.
I suggest to you that there is no such thing - they have a predetermined flow rate.
They usually have an air bleed screw and cable adjustment ability only.
Also they have marks to allow synchronising to the throttle cable(s)
Make sure you use a oil injection type 2 stroke oil as they have a dispersant
to control the viscosity.
Regards
roadracingoldfart
14th August 2007, 21:02
I cant say for sure but the NSRs i used to work on had a cable to the oil pump and the ratio was done there.
If not then im fucked if i know but maybe get a manual !!!! .
plutoniumman
17th August 2007, 00:03
http://tech.nsr-world.com/
Go here. You adjust it by tightening or loosening the cable. Though for me the marks in the diagram seemed wrong.
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