Electrical issue

[Vkngr37]

Gday from Oz I love your forum and have sought the knowledge shared many times.
My GL1500 has an interesting problem. It starts and runs fine however, after a few minutes the clock starts to flash and then the engine stops. It won’t start again and clicks like the battery is flat. The battery is not flat. After it cools down for an hour or so it will start again and the same problem comes up again. Battery is new. Alternator charges at 14v. Main fuse is intact and I’m lost for a solution. Please help.

[newday777]

What year is your 1500?
Did you put in a new 55 amp dogbone fuse or just look at it? They have been known to have age related hairline cracks that once heated come apart and loose connection. There is a spare in the fuse cover.
Do you have a volt meter on the bike to check the voltage as the clock starts to flash? This is a necessity especially on 96 and newer 1500s as Honda went to Chinese made alternators and the windings have soldered joints that fail as they heat up, this would give you the flashing clock and dying motor like the battery going dead you described as the alternator is not charging to keep the bike running.

[Vkngr37]

Thanks for your reply. It’s 1989 model and no I didn’t replace the main fuse, just inspected it. It was your forum here that gave me the notion it may be the main fuse to discover that it seemed intact and that sadly, there were no spares in the little slot on the fuse cover. I have ordered some new ones and am waiting for them to arrive. I will replace the existing one when they arrive and see if that helps. I suspected it may be an alternator issue. Thanks a bunch for this info and your forum. I love working on my wing but it help a lot to have a knowledge base to draw upon. Cheers.

[newday777]

BTW Welcome to the forum.
Do you have a volt meter added on the bike or at least a test meter to check voltages? A test meter can find tje loss point, be it testing both sides of the fuse(black to ground) to see where you have 12v still or not and to test volts at the battery as it warms up to see if the alternator dies or continues to charge as the bike dies.
Post back when fixed what it was to help others that do a search later on to find an answer to their problem.

[Vkngr37]

I will post what I find the problem to be and any solution for the fix. When I’m home again I’ll test the system with my multimetre to assess the fault. If I can’t find it I may have to enlist the service of an automotive electrician.

[seelyark1]

Must be that he/she didn't find the problem. Doesn't take much time to really check that fuse.