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-   -   Spark Plug Upgrade (https://www.kawasakiforums.com/forum/klx-250s-71/spark-plug-upgrade-26762/)

Sail-A-Wai 02-03-2009 01:35 AM
Spark Plug Upgrade
 
What is the best spark plug upgrade for a 2009

Rik

lcpl0331 02-03-2009 02:41 AM
I doubt the plug is your problem but you could go one hotter. If you have an 8 in there go to a 9.

09KLXowner 02-03-2009 05:01 AM
waste- just clean your current plug with a wheel and regap. there are no benefits to a hotter or iridium plug in this engine other than a placebo effect.

Sail-A-Wai 02-03-2009 03:34 PM
In NGK a 7 is hotter than an 8 I just talked with NGK technical support and sent them a photo of the plug tip - it is wet fouled which they say is common with a jet kit and needs a hotter plug to keep it clean. If the tip is black at all it requires too much voltage to start.

roverdude 02-03-2009 03:47 PM
Originally Posted by Sail-A-Wai (Post 354310)
In NGK a 7 is hotter than an 8 I just talked with NGK technical support and sent them a photo of the plug tip - it is wet fouled which they say is common with a jet kit and needs a hotter plug to keep it clean. If the tip is black at all it requires too much voltage to start.
Well done dog!!

09KLXowner 02-03-2009 06:52 PM
Originally Posted by Sail-A-Wai (Post 354310)
In NGK a 7 is hotter than an 8 I just talked with NGK technical support and sent them a photo of the plug tip - it is wet fouled which they say is common with a jet kit and needs a hotter plug to keep it clean. If the tip is black at all it requires too much voltage to start.
sounds like your jet kit is out of whack and is too rich if your plug is wet and fouled. a plug tip is just the result of the mixture of your carb. just my experiences at least.

hoedogg 02-04-2009 01:40 PM
sounds like he got expert advice form the spark plug pros to me.:rolleyes:

tremor38 02-04-2009 01:59 PM
Originally Posted by hoedogg (Post 354475)
sounds like he got expert advice form the spark plug pros to me.:rolleyes:
LOL!

IG is dead set against anything he hasn't tried yet.

Anybody who's done some performance mods and rides aggressively would be better-off going with 7 (next step hotter) plug.


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