engine running rough

david607

Joined
Dec 5, 2011
Messages
76
Location
Malton
Bike
st1100L st1100M
Hi There fellow st1100 fans well here we go again just got the bike out for a ride and it sounded ruff.

Looked at all the spark plugs ok changed them anyway

I have now found that if I take the left front ht lead off it runs the same when you go to connect it again it fires from about 1/2 inch off put it on and miss fires again.

Changed ht leads off my other st1100 and the same thing happens ANY IDEAS Please ?

Cheers Dave:confused:
 
This firing system fires two plugs at the same time, if that helps your thought processes.
 
david607 said:
I have now found that if I take the left front ht lead off it runs the same when you go to connect it again it fires from about 1/2 inch off put it on and miss fires again.
Click to expand...

?? Are you stating it will only run good without skip holding wire 1/2 inch away.

If that is happening then the plug is fouled.
 
also found this piece of hose any ideas where it go,s ??? its 2 inchlong ????SAM_0533.jpgSAM_0532.jpg
 
Last edited:
Thanks Guys do you think this could affect the running of the bike ?????
 
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