There is thread on the EVDL about what are the normal drive-line losses in a Front Wheel Drive car. It got me thinking, so I put the Ninja un the center stand and did some tests for you to comment on. Test 1 - Bike on center stand, measured motor amps, falls quickly to ~29.5 amps at about 1500 rpms. Is this normal? Test 2 - Bike on center stand, removed read disk brake, no change in motor amps consumed. So far so good. Test 3 - Bike on center stand, removed all drive line loads (e.g. no chain or rear wheel or bearing losses) 19.5 amps. This seems to be a lot just to turn over the ADC 6.7" motor? Things noted during the tests.... - I can turn the motor with my hand on the shaft with moderate effort. It doesn't turn as easy I thought. - the motor makes a small squeaking noise when (un powered by hand) turning slowly. Is this sound the brushes rubbing or do I need to suspect bearings? I don't suspect any issues, just curious. - I found that the chain was too tight and the alignment is not perfect. I have some motor mount bolts that need to be addressed to get the alignment perfect. Any thoughts of suggestions appreciated. Any other tests that I should try?
Mike Bachand Denver Electric Vehicle Council (DEVC) - Colorado Chapter of the EAA 1994 Kawasaki Ninja EV <BR><BR><BR>**************************************<BR> AOL now offers free email to everyone. Find out more about what's free from AOL at http://www.aol.com.
