The pickup has a strong magnetic tip. I think it is a variable reluctor
pickup. It has a connector like in pic 3839.
On the flywheel, there are 5 poles for the pickup to read. They are
grouped together on one side of the flywheel. There is also F| and R|
marks for engine TDC marked. You can see all these things in pic 3843.
Look in pic 3842. There is a hole in the cover at the top of the
picture. You can take the bolt out of this hole and read the R| and F|
TDC marks for timing the engine. The pickup is about 75 degrees to the
left, which is approximately 90 degrees offset, plus 15 degrees btdc
ignition timing.
Pic 3844 shows the direction of engine rotation.
Pic 3845 and 3847 shows the flywheel placed in the engine cover, with
the F| front cylinder mark on the TDC hole. (Front cylinder has just
fired.)
Pic 3846 and 3848 shows the flywheel placed in the engine cover, with
the R| front cylinder mark on the TDC hole. (Rear cylinder has just
fired.)
If you add an input (0.5-4.5V) for a boost MAP sensor and allow the user
to add boost, then your users can turbocharge their bike. I think you
will get a lot of business from this.
About MAP sensors;
http://autorepair.about.com/cs/troub...042603a_06.htm
Keep in touch.
Steve
