[Ray Barker]

I have an 02' Spirit 1100 and am currently using the standard NGK DPR7EA-9. I would like to put a hotter plug in but not sure about the part number. Any suggestions?

 

[MarkC]

I have an 02' Spirit 1100 and am currently using the standard NGK DPR7EA-9. I would like to put a hotter plug in but not sure about the part number. Any suggestions?

Look at the "7" in your plug number!
With all else being the same buy them with a "6". DPR6EA-9
MarkC

 

[Ray Barker]

MarkC, thanks for your quick response. I knew it had something to do with the numbers but not sure which one. Thanks again.

 

[mfraser]

Ray a little tidbit for you : For extended high speed riding the DPR9EA-9 would probably be best .When it gets a little cooler out say in the late fall I beleive that a DPR7EA-9 is recommended around (40 or so degrees). Just my two cents. hope this info re: plugs helps you in the future.