Spark plug heat ranges

**Mon Apr 04, 2005 3:21 am » Post: #1 » Download Post**

Another question about my future NSR. I pulled the plugs and they were part number BR10ECM. Is this the correct heat range? I see that there is also an 8 and 9 listed in the parts manual. If I buy new, which should I buy? I think this is a mostly stock engine, with Jha pipes.

**Mon Apr 04, 2005 6:01 am » Post: #2 » Download Post**

I think 9 is the standard, though it depends on where in the world you are.
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**Wed Apr 06, 2005 7:53 pm » Post: #3 » Download Post**

I have 9 on my MC21

**Wed Apr 06, 2005 8:38 pm » Post: #4 » Download Post**

9 is standard, but you can use 8 as well as 10 depending on your needs.
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