| Author | Message | ||
     Purpony |
Bikes not running right at the moment and need some input - getting frustrated. Last year when i installed a Red93Stang see thru timing cover i noticed my sensor was melting like others have. Finished out the year riding no issues.... This year, before heading down south to do some riding i replaced the timing sensor with an new OEM one (although plug end was different so had to swap that) Bike started and ran fine. Rode half a day down south and the bike was running great. After stopping for lunch, the bike ran like absolute garbage... breaking up, back firing etc. Took it back to the hotel to investigate. TPS seemed out of wack so i did a TPS reset. Road the bike some and checked the TPS, out of wack again... did this over and over. So i put a new TPS sensor on it. Seemed to run much better but not 100%. Road the dragon with no issues. Road the next day and again didnt seem 100%. Drained the Tank, fresh fuel. In the mean time the seal in the cam cover for the timing sensor was leaking so.... Installed a new seal, installed new intake seals, new fuel line, fuel injector o-rings, fuel filter, new head temp sensor, new plugs, new plug wires..... Now the bike will not run worth a crap. Rechecked the intake seals, rechecked the cams. re-installed old head temp sensor, reinstalled old plugs. when installing the intake seals, greased them, even so slightly tightened them, installed the throttle body and mount, tightened... rocked the manifold some and then snugged the flanges down. The bike will crank crank crank, fire up and die. If i do this a could times it will then idle for a few.... If i unplug the head temp sensor, the bike will fire right up, but still idles funny.... plug the sensor in and wants to die... again, do this a few times and the bike will stay running for a little with the sensor plugged in. Battery is at 12.3 or so and when i start it, it drops to 11.XX ... at idle its 12.4 or so.... should this be more in the mid 13.xx when running? if i try and give the bike any throttle it coughs and dies. | ||
| Harleyelf |
Sure your new cam position sensor is for a fuel injected bike? Red flag when you have to change a plug on an OEM part. That said, just because a part is new doesn't guarantee it is good. Sounds like you got a dud. This kind of issue is why I changed to dual-fire and carburetor. | ||
| Purpony |
is there a difference on this sensor between carb and FI bikes?? why does American Sport Bike have one sensor listed for all 95-02 and 03 XB bikes? http://americansportbike.com/newdir/Item/17494 | ||
| Zac4mac |
I think the difference is with the timing cups, not the sensor. The sensor is just a basic Hall effect pickup that sees the cut-out in the cup like the cam in a distributor. Z | ||
| Anonymous |
The sensors are the same part number for carbed and fuel injected bikes; Brankin verified this for me a while back. Whether or not the XB sensors are the same, I don't know. | ||
| Phelan |
Ah,it seems '04-'07 use a different part, or at least a different plug. | ||
| Phelan |
Dunno why my post above came out as anonymous, my bad. | ||
| 1313 |
Brankin verified this for me a while back. Correct, but my verification was only related to tubers. I have no manuals for XB's with a cam position sensor. I think the difference is with the timing cups Correct as well. The carb and FI timing cups are distinctly different. Rock on, 1313 | ||
| Snowbees |
my x1 is close to 14v when running, 12.6 when stopped. Possible bad earth, stator, regulator or short somewhere ? | ||
| Reepicheep |
Snowbees, that sounds normal to me. When the bike is running, the stator is higher voltage than the batttery in order to drive current into the battery. Shut off the motor, and the stator is no longer making power, and the overall voltage drops until the battery starts supplying current to the system. That's a little on the low side, your battery is probably just aging, but it may still start the bike just fine for a long time. | ||
| Snowbees |
Yes i know mines ok, still on the original 1999 battery ! i was just throwing my thoughts on Purpony's problem seeing as his voltage was a bit low when running | ||
| Purpony |
my battery is just about 2 years old, but honestly i have not been happy with it since the day i bought it. I finally found my old cam sensor last night... i was afraid i had thrown it out but didnt.... Ends up, the new one i have is 32400-80B which i did find out is an older part number for a carbed bike. But looking at the back of the cam sensor assembly the part number molded into the sensor itself are exactly the same. The original sensor for my bike is supposed to be 32400-94 | ||
| Firemanjim |
Running voltage definitely low-- FI bikes really like good starting voltage-- and the better running with sensor unplugged good clue--- need to look at AFV-- with temp sensor unplugged default goes to COLD start and adds a ton of fuel, like running with choke on. | ||
| Newmans3 |
Hey Marc, Any updates on how your bike is running? I am having similar issues and was curious if you found the problem. Thanks, Mike | ||
| Purpony |
no, have not had much time to work/look at it. Just put a new 02 sensor on the bike as well. Put the old head temp sensor and cam sensor back on and nothing. New battery on order. I want to get a fuel gauge on it and check fuel pressure and i also found that the potting material on my ECM where the two plugs are is all cracked..... not sure if its my ECM thats causing all this. | ||
| Kalali |
The symptoms suggest something wrong with the ECM, like corrupted fuel/timing maps. I would restart with a set of known good maps using known good parts. Clean your plugs first. | ||
| Purpony |
I have a feeling its the ECM as well. As i said above, i found a couple cracks in my existing ECM- wondering if thats the cause. If i get some time the next day or so im going to load my factory maps back in and see what happens. I also order a new ECM as a backup/replacement. |
