Unusual Activity!

[Haya01B]

I have a friend with a none Suzuki product and I will not go into what it is exactly but it is a 1200 cc sport bike. The problem is one I have never seen and maybe because I mostly only work on Suzuki products.

So here is the symptoms: When the battery is connected the head lights and cooling fan are on. The gauges go through the system check motion. All this while the key is out of the ignition!

The owner said the last thing that was replaced was the starter relay after the battery and before that the power commander was disconnected. Now when I started looking over the wiring I saw a lot of electrical tape where splicing was done. I it is like it is straight wired and bypassing everything including the kill switch. I was told that the only way to cut it off was to disconnect the battery.

I have seen this bike many times in the past 2-3years and the owner bought it used from someone who probably had a bunch of mods and probably has seen some track time. I know that the bike did not function like that before but the owner has a habit of not tending to it during the winter and either having to replace the battery or put it on the charger every summer.

So far I checked the starter relay to be good and the polarity from the battery to the main fuse is correct. I disconnected the starter and ignition switch harness with same results.

I plan on going back to the friends place and troubleshoot some more once I get a wiring diagram for the bike and get in it a little deeper.

Any suggestions for a 03 ZX12 that has been possessed?

 

[dadofthree]

Check those spliced wires on that starter relay

 

[Haya01B]

Will do! It seems this all came about after a battery change. I think it was running after the Power Commander was removed but then sat all winter with no attention. She may have disturbed a gremlin or something when she changed it!

 

[aussiekeeper]

Shoot it..........

 

[Haya01B]

Shoot it..........

First thought that came to my mind! I wish she had bought a Busa, but she jump on the first deal she could find.

 

[UncleSteve]

You are going have to check all the splices, there is no way to know without checking each one until you find the problem. Start with non factory wires first. Good luck

 

[Haya01B]

Thanks!

 

[Haya01B]

I have a suspicion that the ECU Relay is one of the problems because it is going through system check as soon as batter is connected so I will pull it and test out with meter. I finally got a hold of a 300+ page service manual. That thing is more detailed than my Busa manual, but on the other hand the Busa has never had such problems you would have to go into such detail. Most problems are rider error or common things.

 

[scoutmanii74]

Just reading your post. I've got a 2000 ZX12R and a 2008 busa with a pc and yoshi full exhaust. I have a post on this forum for my Busa we can't figure out. I got it with 1500 miles on it. Rode it about 200 miles within a few weeks. My buddy heard a noise when riding next to me. we looked and the pipes by the head where glowing red. I have had the pc checked. and have checked several sensors. nothing yet. not sure if it did it before i got it or if it just started. figure that one out.