NSR250.net Forums Logo: Honda NSR 250 Forums, Classifieds and Service Manual in English. Covering All Honda NSR 250 MC16, MC18, MC21 and MC28 models
NSR250.net Forums

#
 
#
 
Performance Engineering

  • NSR250 Forums Index ‹
  • Members Content
  • Members Garage
  • Subscription
  • Transactions
  • FAQ
  • Search
  • Register
  • Log in

View Single Post


 Topic: troubleshooting 







Dave Ett
Site Moderator
Site Moderator
 
    Send private message View user's profile
    Reply with quote

Dave Ett » Tue Jul 27, 2004 7:07 am

Ah. Well I would suggest you rejet anyway, as the engine will be running lean and hotter than it should.

This may be the cause, as if the engine is running hot enough it will pre-ignite the mixture. To be honest though, I would expect you to notice the heat. Have you had the plugs out to check the colour since you ran it?

The most likely cause is an air leak in th exhaust system. Check that the exhaust headers are properly seated and sealed at the cylinder heads. I imagine the noise happens just as you throttle off, in which case the system is sucking in air from somewhere.

Have a look and let us know how you get on...
_________________
MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball

Back to top

  • NSR250 Forums Index
  • All times are GMT
Powered by phpBB © 2001, 2005 phpBB Group


Hosted by NSR250dotNET © 2008 NSR250dotNET