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Check Your Plug

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Just to let everyone know. I have been running the JD jet kit for a while now. Install is EASY and this is the one part HONDA should install at the factory. 5 rides in and I decided to check the plug. TOO WHITE. Bike was running great. I went to the 170 Main-jet and now all is fine. Instructions called for the 165 with airbox mods and stock pipe. I am only about 300 feet above sea level. I have NO complaints with this product at all. Just remember to read your PLUG. LEAN is no good. Has anyone else noticed this? I may even try raising the needle 1 clip. Throwing more fuel at it has had no ill effects in response. Seemed to be just what the doctor ordered.

Paul

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You can't go off the plug color. A properly jetted 4 stroke will have a plug that looks pretty much like it hasn't been used.

I take exception, I spent many years with Louie Unser the engine builder (yes, brother of Al and Bobby) we did a lot of plug work, he always wanted to look at all the plugs when we were setting the carb for a particular race/altitude.

Randy

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I take exception, I spent many years with Louie Unser the engine builder (yes, brother of Al and Bobby) we did a lot of plug work, he always wanted to look at all the plugs when we were setting the carb for a particular race/altitude.

Randy

It doesn't work on the new thumpers with pump fuel as well as most race fuels. I've jetted a ton of new thumpers and when they are jetted correctly, the plug looks white and new. Ask our local jetting Guru, Eddie "Burned" Sisneros if you don't believe me.

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It doesn't work on the new thumpers with pump fuel as well as most race fuels. I've jetted a ton of new thumpers and when they are jetted correctly, the plug looks white and new. Ask our local jetting Guru, Eddie "Burned" Sisneros if you don't believe me.

:thumbsup: OK, so I am old school, I do apologize. Ranco

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You can't go off the plug color. A properly jetted 4 stroke will have a plug that looks pretty much like it hasn't been used.

If that's the case, I don't know anyone with a properly jetted bike :thumbsup:

4Chevys - I am running the 165 main with the JD kit, top of the airbox opened and sides also. Twin air powerflow kit too. I'm at sea level. My plug is a little more sooty than I would like, but I have a nasty habit of leaving too much oil on my air filters...possibly restricting airflow a bit. Bike runs great though, 700 miles and valves have not moved.

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