Hey are you still able to decipher codes from the 1999 tiger shark?I was able to find a way to get the error codes from the emm (ecu) without a laptop. Get a 5amp auto fuse (flat style). Attach a spade connector on each of the fuse terminals. Place a paper clip in the other end of the spade connector and crimp it. Cut the paper clip so about one inch of it sticks out. Use the rest of the paper clip to do the other spade connector. This is your jumper wire. Disconnect the eight pin connector from the emm. This will be the lower connector on the back end of the emm. Use the jumper to jump from the white/red terminal to the white terminal on the wire harness side (8 pin conn). Using the lanyard wrist strap, or some other method, hold the throtle wide open. Put the lanyard into the tether switch. Press and hold the bilge pump switch on handle bar. The check engine lite will start to send the error codes. If the bilge pump button is released the emm should quit sending codes. The codes are two digit codes so you will have to figure out what the light is telling you. If you can get the codes I can tell you what they mean.