ELECTRICAL SYSTEM 85


 
15. Start the engine and let it idle.  Aim the timing light at the flywheel marks (see Figure 5).  The mark on the flywheel will be slightly to the right of the case mark.

16. Increase the engine speed to 6,000 rpm, so the timing is fully advanced.  The marks should now be aligned.

17. If the marks do not align, remove the flywheel and rotate the stator.  Turn the stator left or right an equivalent distance as the flywheel mark was left or right of the case mark. install the flywheel and check the marks again with the timing light.

18. If the mark alignment is erratic, firing in different locations, replace the magneto.


 
PIONEER CHARGING CIRCUIT CHECK

1. Check all wire connections to be sure they are correctly connected.

2. If the battery is low, remove it and slow charge it at 1 amp or less.  If it holds the charge, install it.  If not, replace it.  Check the fuse.

3. Disconnect the red wire from the magneto, that runs up the frame tube, from the purple wire at the connector.

4. Connect one ohmmeter lead to the red wire and touch the other lead to ground.  Read the meter.  Then reverse the leads and read again.  One reading should be infinity and the other from 12 to 15 ohms (see Figure 6).  If the reading is wrong, check the red wire carefully for wear or damage.  If it is all right, replace the magneto assembly.

5. Connect the positive lead of a DC voltmeter to the red wire and the negative lead to ground (see Figure 7).  Run the engine at 6,000 rpm and read the meter.  It should read 30 to 34 volts.  If it doesn't and the red wire is not defective, replace the magneto assembly. 

6. Connect the red wire and purple wire again, but leave the DC voltmeter lead attached to the connector.  Run the engine at 6,000 rpm with the light switch off.  The meter should read 30 to 32 volts (see Figure 8).


 


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