Author Topic: weak spark on 1982 GS550L  (Read 3428 times)

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Offline purf_man

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weak spark on 1982 GS550L
« on: August 10, 2006, 06:07:41 PM »
I picked up a GS550 for $200 that wouldn't crank (wiring issue, jumo the relay and it cranks) but it won't fire up as it has a REAL WEAK spark to it.  I am gonna pop in new plugs this weekend and see if that helps out any and if not what would be my next step?  it is a CDI ignition so no points or condensor to look at replacing.
1975 CB550
1978 RD400

smashme33

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Re: weak spark on 1982 GS550L
« Reply #1 on: August 10, 2006, 07:56:57 PM »
 How's your battery? If it's good, maybe test the coils. A low battery can have just enough juice in it to turn the engine, but not enough to power up the ignition coils during crank. Take a real good look at the coils...Test them. Have a manual or some resource telling you what the proper readings are. Make sure they are not cracked.

Saddlewarmer

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Re: weak spark on 1982 GS550L
« Reply #2 on: August 11, 2006, 11:49:13 AM »
look on this site also for some great help for it
www.thegsresources.com

Offline Green550F

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Re: weak spark on 1982 GS550L
« Reply #3 on: August 18, 2006, 09:14:21 PM »
the coils ground to the frame. make sure the mounting bolts are clean.
I've never found a CDI to go weak, either good or bad. i'd suspect an issue with the secondary side. plugs, wires caps or maybe coils.
93 Kawasaki Voyager XII
70 Honda CL350 Cafe