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Jetting advice..


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Enessr

 
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Jetting advice..

Thu Apr 16, 2026 5:00 pm » Post: #1 » Download Post

As title guys,
What part of the forum has any specific advice regarding
re-jetting the carbs after changing airboxs, exhausts and
other mods?
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Zeus

 
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Location: Malvern , UK.
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Thu Apr 16, 2026 6:06 pm » Post: #2 » Download Post

The topic of jetting is something not allowed on here due to some problems a few years ago which caused Andy a massive amount of hassle.
I found the Tyga faq part of their site very helpful when setting up my Mc21 though. 👍
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Enessr

 
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Thu Apr 16, 2026 7:02 pm » Post: #3 » Download Post

Thanks zeus, I'll have a look.
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Andy
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1991 Honda NSR250 MC21
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Fri Apr 17, 2026 7:04 pm » Post: #4 » Download Post

Please see here for carb/jetting information, and HRC base settings.

https://nsr-world.com/nsr250r-tuning/nsr250r-carb-tuning/

As Zeus mentioned, I do not allow specific jetting discussions on the public forums after a reader tried to hold me liable for using someone's [posted] settings that resulted in an engine failure. Once bitten, twice shy, as they say.

*Sorry if the main site pages are a little slow to load at the moment. I am in the process of moving server/hosting to upgrade.
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Please keep all responses to Forum posts on the Forum so that others may benefit.

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Enessr

 
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Sat Apr 18, 2026 11:45 am » Post: #5 » Download Post

Thanks Andy.
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