#2 cylinder isn't firing

[pjm204]

Well I pulled the carbs, cleaned them. Cylinder #2 still doesn't fire. I can't tell if it goes once I ride since I have never felt the bike run right. It seems to have good power but then again like I said, I have never felt it run perfectly. I'm leaning towards taking the bike to the shop. I really don't know what else to check.

[chef1366]

Hit the throttle and see if the pipe heats up. It might be a sync issue.
Take the end of the plug cap and pull out the wire and cut the wire a bit to get a nice clean connection.

[tkent02]

Take it to a shop and it will never run again.
Do it yourself or sell it to someone who can.
Compression, spark, gas.
Got all three going to that cylinder?

[pjm204]

The carbs were sync'd on saturday with a carbtune. I will go try cutting the plug wire.

[chef1366]

Did you have the vacuum line blocked during the sync?

[Suzuki_Don]

Let's get back to basics here. I know you said it's firing Ok but sometimes things can be deceptive. Try transposing a few things. Swap plugs 2 & 3, swap spark plug wires 2 & 3. See if problem moves to the other cylinder.

[pjm204]

Yes the vacuum line was blocked. I just tried cutting the wire and it didn't help. The starter seems to be having trouble turning the motor over now?

[chef1366]

Did you happen to have the cams out or the cam chain tensioner? I would get the adaptor to check the compression.

[pjm204]

Yea, I will have to do a compression check. I've already swapped the wires on 2 and 3 and it makes no change as far as I can tell. I have not had the cams or tensioner out.

[chef1366]

Charge the battery. Put your finger over #2 spark plug hole and see if it blows it off. It should. If it doesn't you've found the problem.

[pjm204]

Alright, battery is on the tender right now. I really want to get this figured out soon.

[chef1366]

If the clutch safety switch is still operational on your bike you might need two people to do this. Disconnect the other spark plug wires from the plugs. Remove the #2 plug. Have someone push the starter button while you put your finger over the #2 spark plug hole and see if compression blows your finger off the hole.

[83GSrider]

Pat
Did you put new plugs in and try the old coils yet? When you left my house the other day that bike was running on 4 cylinders. I think its a bad spark issue like when we first started it up.

[pjm204]

Okay so here is the update. I charged the battery and put my finger over, it does push it off after a second or two. I switched to my old coils and.....nothing. The engine seems to miss or something and then if puffs a mist of gas out of the #2 carb. So I guess it could be an air leak or a fuel issue? I have no idea to be honest.

[83GSrider]

I'm betting it's something electrical. A bad connection or a broken wire or something like that.