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nsr125rr 99model should i rejet new exhaust

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gizmo1252000
L Plate Warrior



Joined: 29 Feb 2004
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PostPosted: 20:12 - 03 Mar 2004    Post subject: nsr125rr 99model should i rejet new exhaust Reply with quote
hello everybody anyone outhere can tell should i rejet my nsr125rr 99model as im thinking of putting a race exhaust system on nothing has been done ,no tunnuing the bike is box standard and is restricted Sad some people say i must rejet incase the engine runs lean ,some no whats the truth im not looking for huge power increase on the bike its just that honda seems to asked a fortune for a new exhaust system the race systems are cheaper any ideas outhere ??????help
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MarJay
But it's British!



Joined: 15 Sep 2003
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PostPosted: 21:18 - 03 Mar 2004    Post subject: Reply with quote
Don't buy a new exhaust.

Follow the NSR derestriction guide on nsr125.com (and possibly in the faq section of this site)

and bathe in the heady sweet nectar of 20bhp!

Seriously, if you buy a new exhust and don't rejet, your engine is likely to seize. Don't bother. Save the cash and derestrict it yourself.

Thumbs Up you know it makes sense! Smile
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British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.
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Kickstart
The Oracle



Joined: 04 Feb 2002
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PostPosted: 23:56 - 03 Mar 2004    Post subject: Reply with quote
Hi

Chances are you will have to rejet. It would be safest to go up a couple of sizes on the main jet at first just to be on the safe side anyway.

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing
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NSR125-Kid-UK
Attention Whore



Joined: 03 May 2003
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PostPosted: 01:14 - 04 Mar 2004    Post subject: Reply with quote
On this topic i've been considering replacing the exhaust system - pipes and can - on my 2000 NSR and am wondering whether this is a sensible option. I realise i will probably need re-jetting to suit an aftermarket can, the problem is i have an alleged 20bhp on an 11.6bhp licence, and i don't want to attract attention to myself.

What do you fellers think? Rolling Eyes
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"I'm either going to teach andy to get his knee down, or I'm going to get him killed. One of the two" - Teaman
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Flip
Super Spammer



Joined: 28 Feb 2004
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PostPosted: 01:19 - 04 Mar 2004    Post subject: Reply with quote
NSR125-Kid-UK wrote:
On this topic i've been considering replacing the exhaust system - pipes and can - on my 2000 NSR and am wondering whether this is a sensible option. I realise i will probably need re-jetting to suit an aftermarket can, the problem is i have an alleged 20bhp on an 11.6bhp licence, and i don't want to attract attention to myself.

What do you fellers think? Rolling Eyes


Would the police notice on a small bike?

Are your L plates on or off?
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Ste
Not Work Safe



Joined: 01 Sep 2002
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PostPosted: 07:55 - 04 Mar 2004    Post subject: Reply with quote
NSR125-Kid-UK wrote:
On this topic i've been considering replacing the exhaust system - pipes and can - on my 2000 NSR and am wondering whether this is a sensible option. I realise i will probably need re-jetting to suit an aftermarket can, the problem is i have an alleged 20bhp on an 11.6bhp licence, and i don't want to attract attention to myself.

What do you fellers think? Rolling Eyes

Whats the point? It won't make the bike anymore power (well maybe 0.1bhp or something equally crap), it'll in theory invalidate your insurance or you'll have to tell them about it. Also as you say it'll be likely to attract police attention.

Save your money. Thumbs Up
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Old Thread Alert!

The last post was made 21 years, 65 days ago. Instead of replying here, would creating a new thread be more useful?
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