1 No start issues Tue Jul 07, 2020 3:30 pm
Built4comfort
active member
I bought this 85 k100rs with it not running. I went to test ride it before purchase and it died as soon as I got out of the driveway. The guy is a friend of mine so I know it ran decently before this. He purchased it not running where the issue was the fuel pump had gone bad. He replaced that and rode it for about a month probably before deciding to sell. Thinking the issue was only power to the fuel injectors and knowing I wanted to turn it into a café racer, I did some research that led me to the m-unit by motogadget. After hours of watching videos and tracing wire diagrams, I got it all wired for the ignition and start bare necessities. I'm pretty green when it comes to all things mechanical and electrical so this was probably too much to tackle but I did it and I can't turn back now. I replaced the injectors themselves from Mr injector. And tested those. Had power. I got everything wired up to test and... Nothing. Just a starter turning. Checked spark. No spark. Check continuity in plug wires. Checked resistance in coils. Everything good except 2&3 gave me high numbers. Replaced spark plugs, it was as simple as that. Gave me spark. However, still no ignition. Now, it was about 4 in the morning and I had to be up at 6 for work so I didn't do the most intelligent thing, but I sprayed starter fluid in the air box. What do you know? It fired up. It didn't stay running. I did get a video. I put new, fresh gas in to make sure that wasn't it. But that is as far as I've gotten and I'm not sure where to go. Does anyone have suggestions? I'll post a video