99 R1 CDI Getting Hot (nightmare)
I picked up a 99’ R1 for a steal and it wasn’t running. Turns out it was just the fuel filter. Got it running for a little while and then it was just one problem after another after that. I’ve replaced pretty much everything on it (at least once lol) chasing down issues that I’m not even sure I had or that the part that I replaced was the culprit.
I’m new but no stranger to this forum from various google searches and troubleshooting and I have a feeling I’ll be posting pretty often with this particular bikes issues.
So I guess I’ll start with my main issues right now first being the CDI getting so hot it melted/blew a hole in the replacement one I bought because the old one was the culprit of my no spark issue. I spoke with the person I purchased the CDI from thinking it was a faulty unit but it turns out the old one gets hot as well (key on).
The list of parts I’ve replaced: Stator, Battery, installed Ex-Up Delete, Ignition Coils, RR, Spark Plugs, Starter Circuit Relay, CDI (3rd one should be here tomorrow), and Fuel Pump. I’ve also gone through all the harness plugs that are usually problematic and replaced them with butt connectors and used dielectric grease (main harness, RR, stator)
I went through the repair manual looking at wiring diagrams and what not and I found that the RR wiring in the service manual (supposedly for 98-01 but titled yzfr1 98’) has it wired black on the top left and red on the top right with the white on all bottom 3 of course. I looked at mine after recently bypassing the plug/harness and it was wired with the red and black in opposite places from whenever I looked it up at the time. I find that depending on the source the red and black wires are more often than not in the opposite of what the service manual says so I’m lost on that. I replaced the RR (again) thinking that was the issue since it would blow the main if I wired it correctly according to the manual but the new one came in today (MZR) and it blew the main as well.
Sorry for the novel but I’ve reached my wits end on google searches and forum searches and I’m ready to just sell it for a loss and move on so I figured I’d register and give it one last hoorah before then, thanks in advance for the help!