Question about 2007 Yamaha Stratoliner

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I am not getting any spark

I hav a 1985 yamaha pw80 and i am getting no spark....not sure if it is the stator , cid , coil , or on/off switch.....what can i do to find out what is keeping it from getting spark???

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You will need a digital multimeter for easy reading ( The one I use cost $5 ). Find the connecter for the two wires for the on/off switch. Disconnect the wires and connect the meter leads to these terminals. Set the meter to Ohms and check that the switch opens and closes connection. Should read OL when open and .01 when closed depending on meter setting. If it checks out, then not the switch. Also check the coil and spark plug boot/wire with Ohm meter. Be sure that the boot is firmly connected to the wire. Small wire to frame- OL. Small wire to spark plug boot- thousands of Ohms (possibly 5000-30000 but don't know the spec). If either of these shows a small number of ohms (example: .01-7 ohms), then there is a short in the coil. Also check that the steel bar of the coil is grounded to the frame/engine with Ohm meter- 0.01. To test the source coil connect ohm meter to small wire coming out and other meter lead to engine ground- should be hundreds of ohms. Sometimes it is easier to start replacing at the least expensive part!

Posted on Feb 03, 2010

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