ignition coil removal ? how to

sofawizard

andy
Joined
Oct 24, 2011
Messages
117
Location
scotland renfrewshire
Bike
st1100 a
:bow1: ok ok i know sillly Q but i need to do it fast so i dont want to remove all the plastics ect to get in so can anybody tell me the only parts i relay have to take out to get the buggers off ? been enjoying the poor running she starts fien idles ok but has a bit of a stumble come 4k -5.5k ish and it makes no diference hot or cold 1 plug isnt getting the volts im sure ive changed the carbs plugs , checked the fuel cap and flow from pumps ok so coils seem the obvious conclusion
bike a 98 abs with 71k miles done
 
Remove,

seat
side covers
tank shelter
inspection panels
right fairing pocket lid
left and right inner fairing
airbox lid
air filter
two screws for fuel valve
lower half of airbox
3p connector for coil ( left side, white )
bolt for the main connector array, center of bike in front of airbox
disconnect all plugs in the stay for main connector array
two bolts holding coil stay
coils exit left through inspection panel

Now keep in mind all this is from memory. I might have left off some stuff. Getting them out is kinda a pain. I would suggest a good repair manual if you don't have one already. What do you mean by "1 plug isnt getting the volts im sure ive changed the carbs plugs" ? One plug isn't sparking, butt the last bit? One coil supplies spark to two cylinders. It is strange that one plug would have no spark while the other cylinder it shares would. If that is the case, fault must lie in the wire, plug boot or spark plug itself. Have you checked the coils with a DMM? Disassembled the plug boot and cleaned it? Replaced plugs? I would before I pulled the coils.
 
Could just be the sparkplug cap or wire on that cylinder. Try removing the cap and trimming the wire back a little and re-installing.

Dan
 
thanks cheese spot on bu i managed to get the coils out the top ? via the main conection opening with a little waggaling turns out the conections to the coils were corroded
fitted replacement coils as i had a pair in my spares pile and shes running sweet in time for this saturdays dalance with disabled children sence scottland invited
my local bike club www.strathgryffemcc.org/ have a look if you like
The Cheese said:
Remove,

seat
side covers
tank shelter
inspection panels
right fairing pocket lid
left and right inner fairing
airbox lid
air filter
two screws for fuel valve
lower half of airbox
3p connector for coil ( left side, white )
bolt for the main connector array, center of bike in front of airbox
disconnect all plugs in the stay for main connector array
two bolts holding coil stay
coils exit left through inspection panel

Now keep in mind all this is from memory. I might have left off some stuff. Getting them out is kinda a pain. I would suggest a good repair manual if you don't have one already. What do you mean by "1 plug isnt getting the volts im sure ive changed the carbs plugs" ? One plug isn't sparking, butt the last bit? One coil supplies spark to two cylinders. It is strange that one plug would have no spark while the other cylinder it shares would. If that is the case, fault must lie in the wire, plug boot or spark plug itself. Have you checked the coils with a DMM? Disassembled the plug boot and cleaned it? Replaced plugs? I would before I pulled the coils.
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