Crank Position Sensor

I have been doing some reading and one thing that I read that I thought interesting was that it said that if the crank sensor was dirty, it could interfere with timing of the ignition. This makes sense to me. And also makes me curious.

Now I pulled the case plug to look for wet sumping signs and none were present. I.E. there was only less than an ounce and a half that drained out. And I checked it when it was hot. It isn't wet sumping. However, the symptoms that I experienced or am experiencing reminds me of two previous issues that I've had.

1. Reminds me of how my bike acted (felt) when my dumbass put 60 wt. oil in. Lol.
2. When I had my bike retuned with a second MAP. The second MAP felt very sluggish to me and my fuel mileage suffered. Yes, I did gain a bit more power. Once I reloaded the original MAP, my bike felt like my bike again.

After going through some archives on HTT, most people with Crank Position Sensor issues usually describe an abrupt failure and their bikes would not restart, however not a single one mentioned the possibility of a dirty one.

Just curious what we all think here?

Here is the article that I read that got me thinking. I understand that different engines have different designs but their function is basically the same. http://airtexmobile.airtexproducts....r-and-how-it-affects-the-fuel-delivery-system

The only Crank sensor problem I had was when the rag got left in the bottom end.
No sign of a problem(spark & timing wise anyway)until the rag beat the end off the sensor,then total failure...That rag was sloshing around the crank and no doubt got on the notches on the flywheel but there was no sign of a misfire.It did cause some drive ability issues when it choked the oil off to the top end though
The optical CPS would be the only one I could see acting up because of dirt partially blocking the LED.
I think you'd have a whole other bunch of problems if there was enough dirt in your bottom end to block the magnetic pulse between the sensor and the flywheel notches...

A crank or cam sensor reads the notch or multiple notches on the rotating part and procesed by the ecm. as said by others most times sensor is good or bad. heat expansion will cause a sensor to leave you on the side of the road, most of the time they are accurate as long as no metalic fibers are on the nose .

i believe the sensors are magnetic not optical on our scooters, work on cars, lol

Geezer Glides may have an optical sensor in their CD players....