Question about Motorcycles
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Posted on Jan 02, 2017
SOURCE: yamaha big bear no spark
I'm not familiar with all quads and all the kill switch locations. Does it have a tip-over kill switch? Is it working? Is the quad in neutral? Is the neutral light on? Many engines will not spark if the neutral light is not on. Are the headlights off when starting?
How good is your battery? A low battery can kill spark. Test for spark by grounding the threads of the plug against the cylinder. Have a friend kick the bike while you watch for spark. Assuming no spark, then check all the kill switches with an Ohmmeter to be sure each switch is working properly. Sometimes a switch goes bad. Try disconnecting all kill switches then check spark.
Check the wiring harness, even under the gas tank and seat. Are all the connectors clean and with a tight connection? Any abraded wires? Check the ignition switch also. The switch can go bad as well. Are the flywheel coils good > is the battery getting a charge?
Still no spark? If CDI then get it checked.
If points then file or replace them along with a new condensor and reset the gap then time the engine. >> I hope this helps.
Please rate this answer. Thanks trsrhntr!
Posted on Apr 03, 2009
SOURCE: Won't Start
do you have compression? for a engine to run you need clean air,compression, good fuel(make sure the fuel has not been there 3 months or more as it will deteriate) and good spark as well as good exhaust as this will cause a back fire if the exhaust valves are not set right.
Posted on Apr 21, 2009
Check the battery and make shure it is fully charged. Check the coils to see if they have went bad. You can have them tested at any repair shop. Last the CDI could have went bad.
Posted on Sep 17, 2009
Here is a location for the Service Manual. Maybe the operating manual
is available there too. Goodluck!
Posted on Nov 21, 2009
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