If after a while it starts back up?
I would replace the pulse generators. Not a costly repair and on (after 84) models easy to get at.
I had a person asking the same question in August last year, his bike would just quit after running for a while his was an 86 too.
He said he didnt like riding it because he couldnt trust it. He had just got the bike and the previous owner had gotten rid of it because of this and the ??? mechanic ??? couldnt fix it.
Replace the original main fuse with an auto fuse and holder, I used one that had a type of weather proof cap, soldered and heat shrinked.
Search the forum for this problem.. There were many, many postings on this problem last summer and into the fall.. If memory serves me right (sometimes it doesn't) it's the pulse generators.. If after the engine quits running, and you still have lights and electrical power, it's usually the pulse generators.. Perform the book test on both upper and lower (located behind the front drive belt covers). If you lose all power, including electrical, it points to the ignition switch or fuses...Keep writing to this forum and you will get the answers to this problem. We need more information to pinpoint the cause...
well when first take the bike it runs great, it wont quit. then i park for awhile then ride back then it start to act up i lose tack and speedo goes dead, not sure about the lights. the only light that comes on is the oil light after it quites.. but then i turn the key and hit the starter it starts right away runs for half block quits again, it does this 3 or 4 times then runs great after that??
Try cleaning the battery posts maybe there is a loose connection there.
If it dies when you come to a stop or at a low rpm. The battery keeps the bike running at lowrpm's. At higher rpm's the stator puts out enough to keep the bike running ibelive.A loose dirty battery post can give you all kinds of strange problims
no it guits at any speed i have replaced the stater and the starter last year, it did not start guiting after i replaced the stater, i lost the stater on a bike trip it died then it would start again had jump start the bike to get it home.
Take a good look at the two 30A fuse links. They can cause all sorts of odd problems, remove the links and put them back after cleaning the screws and link ends. Sometimes these things corrode and then there's no end of mischief they can cause.
Wht would the speedo quit as well? On the Interstate I thought the speedo was a mechanical one?
If only the oile light comes on after cutting out, then surely its an electrical problem and not the pulse gennys.
Before changing the Pulse Generators, if your main 30 amp fuse link is corroding, or even if it isn't replace it with an auto fuse and holder preferably one with a weather proof cap and solder the connections. Then if you still having problems you can look to mor expensive fixes.