Join Date: Jun 2007
Location: Bancroft Ontario Canada eh.
Year: 1991 1500 SE & 79 1000 GL.
Model: '79 GL1000 & '91 GL1500
Hi iancianc & welcome to the forum! Try this for starters. Unscrew your plug boot off the plug wire that has no spark. Swap it with a plug boot on the oher side of your motor. If the dead cylinder moves to the other side, your plug boot is toast. They have resisters inside them & sometimes they short out. If this is the case, replace all of them. When you unscrew the boots, look at the wire end for corrosion. If you see any, trim the wire by 1/8th of an inch to expose clean center core.
As for your carbs, were they cleaned by a bike mechanic? The float levels can alter your rich or lean settings if they are not right on.
Look carefully for a vacuum leak which will also cause some of your problems.
You must also sinc your carbs or your wing will run like crap!!!
Keep us posted, We will get you sorted out!
If ya cant fix it with a hammer, it's prolly lectrical
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