NS250r ATAC Valve ?

**Fri Mar 17, 2006 9:39 am » Post: #1 » Download Post**

Has anyone had any experience with removing the ATAC valve butterfly and replacing with a plug?

Thanks

**Fri Mar 17, 2006 10:39 am » Post: #2 » Download Post**

I don't have experience with the NS250, but what you are asking worked perfectly on my little MBX125F years ago.

It was like riding a TZR125 with the power valve turned wide open - very little bottom end until 7000rpm, then off it flew!

All the race pipes for the NS250 and 400 remove the ATAC, so I say go for it... and let us know how you get on!! Smile

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Andy.
NSR-WORLD.COM

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**Mon Mar 20, 2006 10:12 am » Post: #3 » Download Post**

The old NS is under going a total rebuild after 19 years in the back shed.I hope to have it back on the road in the next few months.Looking like new.It only had 15,000kms on the clock before I tryed to kill myself on it.
Will be interesting with out the rather crude ATAC valve, I dont think it does much for the top end even when it is shut.

I'll let you know.

Thanks

**Tue Mar 21, 2006 2:52 am » Post: #4 » Download Post**

This is what you want! Wink

But they don't come cheap! You'd be looking at $1000!! Shocked

_________________
Andy.
NSR-WORLD.COM

Please keep all responses to Forum posts on the Forum so that others may benefit.

Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.

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