KX100 Spark Plug

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dirtfreak

Member

Feb 16, 2003

54

0

• May 5, 2003

• #1

Hey everybody-

I have a question about the hotter spark plug number for my 99 KX100. The stock plug number is an NGK R6252K-105. What is the "hotter" spark plug number for this bike? The bike has a BR9EG on it right now and I just wanted to know if this is the hotter plug before I buy a spare. Thanks--dirtfreak

 

R

Racer#213

~SPONSOR~

Mi. Trail Riders

Nov 14, 2002

469

0

• May 5, 2003

• #2

I use BR9ES, and for trails i use a BR8ES.

 

D

dirtfreak

Member

Feb 16, 2003

54

0

• May 6, 2003

• Thread starter
• #3

Racer #213

What's the hotter plug, the BR9ES or the BR8ES? I'm assuming it's the 8 since you use it for trails. On my Honda, the lower number meant a hotter plug, so I'm assuming it's the same situation here.

Dirtfreak

 

C

CO Dan

~SPONSOR~

Apr 20, 2001

234

0

• May 6, 2003

• #4

yes, the 8 is the hotter plug

 

R

Racer#213

~SPONSOR~

Mi. Trail Riders

Nov 14, 2002

469

0

• May 6, 2003

• #5

yup for NGK plugs teh lower the number the hotter the plug. The 105 is a 10.5 so it is a pretty cold plug.

 

D

dirtfreak

Member

Feb 16, 2003

54

0

• May 7, 2003

• Thread starter
• #6

Thanks everybody for your replies, I'll get the BR8ES or the BR8EG, I haven't decided yet (either that or the non resistor type plug of one of them).

dirtfreak

 

F

fuzzy

~SPONSOR~

Jul 26, 2002

447

0

• May 8, 2003

• #7

If your bike's manual spec's a Resistor plug, I'd use it. No power/anti-fouling gains will be had from a non-R plug. It's strictly to eliminate the possiblity of EMF interference w/ your CDI box. Some CDI's are better shielded, etc and do not require a R plug. On the other hand I seriously doubt you will hurt your CDI using a non-R plug. Just FYI....

 

D

dirtfreak

Member

Feb 16, 2003

54

0

• May 11, 2003

• Thread starter
• #8

Thanks fuzzy, I think I'll go with a resistor plug just to err on the side of caution. --dirtfreak