Hi all
I was a member on here a few years ago,I had a mc18 2j,in rothmans colours,sold it a year ago and regretted it ever since!,so I have just brought another one.
It's another mc18 2j,its a good bike but just needs going through,I picked it up Saturday and have been just going through it.
It had the usual stuck floats/power valve motor not working etc,etc,but I have set the oil pump,sorted tps,battery,set power valves,cleaned carbs,set floats (12mm),fixed the servo,
And she runs beautifully!!!! .
There's a few things that I have searched for and found the answers for and a few I can't,
1,as you sit on the bike,left carb big jet has 38 on it,and 132 on the small
Right carb big jet has38 on it,and 130 on the small,
I checked the standard carb settings but I don't know which carb is 1 or 2 and the small jets are different to the ones on here, oh the carb is a 7a 20a,

2 I only have one air solinoide when on your mc18 picture you show 2?.And I'm sure my old one had 2 but can't remember 100%,

3i couldn't seem to find how to set the tps sensor up as the original one when I tested it I got no ohms one way,(lucky I still have all my spares!,
Any help and advise would be a great help,

Where are you in the UK?
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Why do things simply when you can complicate them

Hi robh
I'm in Beccles,near Lowestoft,
Oh and thanks for the one and only reply,

One of the images of the mc18 air correction in the technical section clearly shows which carb is #1 and which is #2.

The image is of a mk1 mc18.
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There`s no cure for stupidity… but with the endless supply of stupid people around me, I must be close to finding it!

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Vampire?

Thanks for info,


So it looks like the main jets are the correct size but in the wrong sides,
And my power jets are #38 in both but should be #70/75!!
Is this a normal thing,the bike is standard,
I aim to run it on 97 + Ron fuel,to cut det and will be using it at Snetterton (just up the road and my mate runs it ) so need it to be as safe as poss,
(I know you guys state that no one can give you exact jett info but am just after advise.)

I think your getting all your jets mixed up. The #38's are you pilot jets not power jets for example. I would look though the carb' section on the main site first.
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If I have to take the carbs off once more...

Thanks for correcting me,
There is always something to learn about these bikes.