| Author | Message | ||
     Chief |
Ok so I'm rideing along last fall haveing a really nice ride and I'm now on my way home. After about 150 miles of rideing I'm tooling along at about 45 mph and my bike just dies, no warning no sputtering just nothing. Lucky for me there was a side road I could pull off on to get out of traffic and do a little investigation. So I find that all the lights work, the starter turns the motor over just fine but I have no spark at all. The wierd thing is when I'm getting no spark and I turn on the key the fuel pump comes on like normal but doesnt run for nearly as long as usual, like maybee 1 second as opposed to 3seconds. After fooling with it for a while it starts right back up and runs fine all the way home. A couple of weeks later I'm going for another ride and I get about 5 miles before it does the exact same thing. This time after checking fuses and wiggling wires to know avail I unplug the ecu and plug it back in again, and the bike starts right up . There was no corrosion in the connecter and it was firmly connected before I unplugged it. Is it possible that the ecu is going bad? I've never seen one work sometimes then not others. Any help would really be appriciated. Thanks Will | ||
| 99x1 |
The ignition/ECM/injectors have a seperate ground wire in front of the ECM under the rear of the tank. There are two wires on different lugs under the same bolt into the frame - the smaller wire is the ECM ground. I think this is a common problem on X1s. | ||
| 99x1 |
If it happens only when hot, the cam position sensor can cause a similar problem - the fuel pump doesn't restart until it sees the engine turning over (via the cam sensor). A fault on the coils or injectors will show up on the Engine lamp, but the ECM thinks the engine isn't turning over if the cam position sensor fails - so doesn't post an error. | ||
| Chief |
Hmm I'll have to look into that ground wire. The fuel pump running for a short time that I was talking about only happens in the initial prime when you first turn the ignition on so I dont think our second suggestion is the prob, but I'll still take a look at it. Thanks | ||
| Chief |
Well I took a look at that ground wire and it seems fine, no corrosion, nice and tight. I even undid it to see if maybee there was a break in the connector, nothing. The problem is the bike runs fine now so even if I do fix it I wont know, heck I dont even know how to tell if its even going to do it again. I hate these inconsistant electrical problems  | ||
| Steveford |
Could it be the circuit breaker? My S3 was giving me grief until I replaced that although I put on a new coil at the same time. | ||
| Chief |
Well after digging into the service manual (duh why didnt I think of that before) it seems that a bank angle sensor will cause no spark and short fuel pump response. So I guess I'll replace that and cross my fingers. | ||
| Jnorton |
Not that it's of any help to you, but I had the same problem on my wifes 99X1. It got to the point where it would only run about a mile or so and shut off. We were about 100 miles from home at the time so it made for a long ride. I tried changing and checking most everything I could think of and nothing worked. Finally got fed up and converted the bike to carb operation. Used 40mm CV and HI-4 ignition with Voes switch. Wife has never been happier with the bike, and you know what thats worth. | ||
| Onebrokeracer |
My brother is racing an x1 and is having similar problems. How extensive is it to convert to carburetion? | ||
| Jnorton |
Carb conversion is fairly easy. Major required components are manifold, carb, Crane HI-4, rotor cup. I also chose to include the VOES for street riding. For the gas tank I removed the fuel pump and plugged the larger hole. Installed an inline fuel shutoff valve. Easy job to do in a day. One of the main reasons for doing this for me, was the nearest dealer was 400 miles away, making servicing the FI system impractical and expensive. Parts cost was about $500. | ||
| Jnorton |
Woops, should add that you should replace the coil. X1 coil has very low resistance. I didn't want to risk damaging the HI-4 unit. |
