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I have a question with regard to spark plugs.

I have a vstar 1100 classic, 2003. I am the only owner.

I live at 7500 feet above sea level and my bike has been rejetted, by me, twice. I forget which Jets I am using (from Maxair), but the bike is running well. I have K & N air filter and Hard Chrome Big Straights.

Today I went down to a local bike shop to buy new spark plugs. The guy there sold me #6 spark plugs (NGKBPR6ES) instead of #7, which is in the Vstar manual. The guy told me that he always uses spark plugs that are 1 number hotter than recommended.

Does this make sense or should I be switching these spark plugs for a number 7?

thanks for the help.

Alty
 

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I'm no expert, but I say go with what ya know.
If #7 worked good for you befor, stay with it.
 

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What makes sense is to pull a spark plug and check it's wear (you can use any spark plug color chart) if it is normal you don't need to change the plugs heat range.

Neil
 

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Sugar Bear is no tech or expert either, agree with the other guys, if 7 has been workin for you no need to change. My own case on my old (28 yrs) 750, I did change to #6, starts and runs much better than before, electrical stuff breakin down?, I don't know. On my 1100 7 is what I use and does me fine. Bottom line, if #7 works for you, no need to jack with it:D Ride safe.
 
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