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I have a 2000 Yamaha VStar 650. I can’t get it to turn over. We have tested everything electrically and found a few things so we replaced the ECU, spark coils, spark plugs, combo relay, inspected stator, tested stator according to manual. Compression was great. Output from the stator was in spec. The trigger wire from coil to ECU has continuity and no grounds. We are getting weak spark in front cylinder and no spark in the rear cylinder. Pulse coil has been checked and according to the manual is good. Probed wire harness as per manual and everything tested good. Killswitch, key switch and kick stand switch we’re all tested and found to be good but we even bypassed them from the circuit. We have no more hair on our heads now and need help! Lol please! Thank you Brett Hodsden
As a Yamaha Dealer Mech. of 46 yrs. I’ve replaced many, many pulser coils. Check the resistance of the coil at the rear of the tank (Removed). It is a small white multi connection w/ 2 wires (black & gray). Should be approx. 200 ohms unplugged. Not the ECU. & Not the Ignition Coils.
Brett, how did you get on in sourcing a pickup coil? I have a ‘97 DragStar Custom but see all the adverts for 98-2003. I have googled using the Yamaha part code (4TR8167000) and found that the same part has been fitted to bikes from 97 through till 2006. So it appears to me that it is pretty much the same spec. Have not fitted one yet hence my question.
