Plug caps pops out

[Mohabba]

My riding buddys 09 M1000 pops of the spark plug caps. Last weekend it threw a cap from each cylinder and the weekend before one on each cylinder came off by itself. When they went off the first time he changed them to new but they also came off the spark plugs. so all caps but one has been off by itself.

Anybody know of this?

Thanks

 

[gopher-it!]

plugs

My riding buddys 09 M1000 pops of the spark plug caps. Last weekend it threw a cap from each cylinder and the weekend before one on each cylinder came off by itself. When they went off the first time he changed them to new but they also came off the spark plugs. so all caps but one has been off by itself.

Anybody know of this?

Thanks

what plugs is he useing. does he have a pipe on it.

 

[Mohabba]

All Speedwerx porting, head, pipe and can + BD box.

The plugs are recommended.

Just wondering how they fall off by themselves as if blown off by some kind of pressure?

The cables are completely free on anything to jerk them.

Thanks

 

[m8magicandmystery]

too much dieletric grease on the boots if he uses it...or detonation..

 

[Mohabba]

How does detonation cause the plug caps to fall off? need a little insight.

Thank you

 

[gopher-it!]

pugs

How does detonation cause the plug caps to fall off? need a little insight.

Thank you

same pipe, and if your running lean the plug caps will come off. especaily the one closest to the pipe.

 

[Mohabba]

same pipe, and if your running lean the plug caps will come off. especaily the one closest to the pipe.

Thank you for replies.

The caps closest to the pipe did come off.

What forces them to come off?

 

[winter brew]

I have seen this from detonation.....even with snug fitting caps, just the right harmonics will vibrate them off. Did he have any problems with the plugs themselves working loose also?

 

[Mohabba]

no, not at all

Thanks