Spark Plugs - Star Motorcycle Forums: Star Raider, V-Max, V-Star, Road-Star Forum
LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old 11-06-2010, 07:10 PM Thread Starter
Junior Member
Join Date: Oct 2010
Posts: 7
Spark Plugs

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.

alty68 is offline  
Sponsored Links
post #2 of 4 (permalink) Old 11-06-2010, 07:19 PM
Senior Member
taboo365's Avatar
Join Date: May 2010
Location: Buffalo, N.Y.
Posts: 821
I'm no expert, but I say go with what ya know.
If #7 worked good for you befor, stay with it.

Now 2010 V STAR 950 T
Former bikes were
1982 Yamaha XJ650 Maxim
1977 Harley Iron Head Sportster
1970 Triumph 500 Hard Tail Chopper
4 wheels move the body, 2 wheels move the soul
taboo365 is offline  
post #3 of 4 (permalink) Old 11-06-2010, 07:38 PM
Join Date: Nov 2009
Location: Kentucky
Posts: 77
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.

Neil01 is offline  
Sponsored Links
post #4 of 4 (permalink) Old 11-06-2010, 08:33 PM
Senior Member
Join Date: Sep 2009
Posts: 1,880
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 Ride safe.

Ride Safe, Live Long
Sugar Bear is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Star Motorcycle Forums: Star Raider, V-Max, V-Star, Road-Star Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome