Just need to know

[Brake Pad]

How well does a bike run with a fauled plug?

[slick97spirit]

You'll hardly be able to tell except for the loss of fuel mileage.

[Brake Pad]

Okay, I just had two new plugs put in, and I didn't know the bike had this much power.

I don't know when this happened, since the bike had a service warranty on it for the last 2 years.

[LilBeaver]

This weekend when I did some PM work on my bike, I had inadvertantly left one of the plug wires off one of the times that I started the bike. It started a little hard (meaning it had to crank a little more than usual) but I had drained the fuel out of the carbs and such, so I just figured it had something to do with that.

 

After I shut it off, I saw that plug wire hanging off the other side - put it back on and started again, and it started right up and it was a little more smooth.

 

With the performance difference you noticed, you may have had a bad plug.

[ddoggma]

I over seafoamed my bike a while back and didnt know I lost a cylinder. Until I noticed my milage was bad and I finaly checked em at startup. Changed the plugs and its back but still not 100%. Maybe 80/85% I have a stumble getting on it from 1 thru 3rd. Not the end of the world, but It just not the same as when she is running perfect. My milage is good again and once in a while it runs pretty near perfect.... So, to answer your question...lol They will go around town pretty well on 3 cyl. You gotta take the sides off and start her, then feel the pipes...quickly Or you'll get burnt. If you have one not getting hot. Thats the bad one.