testing coil

[jcarey]

Can someone please tell how i can test my coil and what the reading should be at. When i pull my spark plug out i have soft black carbon on it. idles rough and no throttle response. change carbs with a rebuilt carb does the same thing...any suggestions would greatly be appreciated. thank you Jeff

 

[DeadLastRacing]

What type of set up are you running. (air filter, pipe) Weird that its idling rough and no throttle with a whole new carb. We need some background on your bike.

 

[jcarey]

bike was running great for the longest time,then at the end of the day ,it started to have a small bog as soon as you hit he gas. i have been running the same set up for a year trouble free,fmf pipe with a k&n filter,and now it runs like crap,even with a new plug,and the timing looks good

 

[DeadLastRacing]

you check the carb boot for any tears or rips? The new carb (and old) jetted properly?

 

[jcarey]

carb boot is good,both carbs are stock jetting,the same way i was running all year

 

[DeadLastRacing]

With a pipe and filter, your jetting shouldn't be stock. I'd say try one up on both.