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m-box/black box?

Posted: Wed Aug 08, 2012 10:21 pm
by tom4
hello

On my last trackday, my nc30 would not go over 180kph. thanks to the forum, I learned I could disconnect the speedometer, and correct the problem.
But now, i'd like to have speed AND go over 180 kph.
I found on ebay some kph/mph converter, that are said to do the job. did anyone tried?

I also read that a M-box plugged on the cdi would correct it too, but I could only find some used one on ebay. Does anybody knows where to get a new one?

thanks
tom4

Re: m-box/black box?

Posted: Wed Aug 08, 2012 10:24 pm
by Yakama
Yes the blue KMH to MPH convertor will do the job or you could do this mod:

http://www.400greybike.com/files/NC30%2 ... 20how2.jpg

Re: m-box/black box?

Posted: Thu Aug 09, 2012 3:32 pm
by CRM
total waste of money, open the clocks and trim away the disk that sits before the speedo face that turns with the needle and breaks the beam.
restriction then gone

Re: m-box/black box?

Posted: Thu Aug 09, 2012 3:53 pm
by Neosophist
CRM wrote:total waste of money, open the clocks and trim away the disk that sits before the speedo face that turns with the needle and breaks the beam.
restriction then gone
Agree!

Favourite method. Nothing to fail or come loose, plus you can tell withotu taking the clocks apart..

Re: m-box/black box?

Posted: Fri Aug 10, 2012 6:28 am
by tom4
yes, that's true. I have to admit, I was going to open it last week end, and got "scared" with all this screws and wires :(

maybe i'll try again then

tom4, I have a loooong history of failed self-mechanic operation :)

Re: m-box/black box?

Posted: Fri Aug 10, 2012 10:51 am
by speedy231278
Mod the speedo, it costs nothing but a little of your time. Another reason for not using a convertor is that you trip meter will then read in miles not kms, so you'll have to make a note of the kms, then do the sums on what it reads afterwards if you do servicing by distance rather than by time. If you prefer miles for the speed it might be worth getting a dial with MPH on it to fit at the same time if it's not already been done. There are a few threads on here about where to get them from and how to fit.

Re: m-box/black box?

Posted: Fri Aug 10, 2012 11:48 am
by porndoguk
OP is french so KMS would be his prefered speedo type.

Re: m-box/black box?

Posted: Sat Aug 11, 2012 3:55 pm
by Speedy
tom4 wrote:yes, that's true. I have to admit, I was going to open it last week end, and got "scared" with all this screws and wires :(

maybe i'll try again then

tom4, I have a loooong history of failed self-mechanic operation :)

I know what you mean, but it is easier than it seems!
Have a look at a guide on my website as it has photos of an opened speedo, as well as step by step guidance on how to do it!

Linky: http://www.veaminicori.talktalk.net/workshop.htm

Re: m-box/black box?

Posted: Sat Aug 11, 2012 5:37 pm
by tom4
Tx Speedy, i'll have a look at your link

tom4

Re: m-box/black box?

Posted: Sat Aug 11, 2012 5:41 pm
by tom4
it looks do-able, even for someone like me with 2 left hand :)

tom4, maybe i'll try