Question about 1982 Yamaha XJ 650
I start my motorcycle but then it starts trying to kick on but it wont and the spark plugs are fine...please help I wont to impress my girl and im a new rider!!
Hey Nick, unfortunately it could be several things. As Tom Diffin mentioned carb gummed up or even bad fuel from sitting all winter. If your positive the spark plug is firing (pull plug, connect to plug wire, place within a couple mm of a metal bolt, CAUTION: hold with insulated pliers so you don't get shocked, bump starter and watch for a spark) then try a very small squirt of fuel (starting fluid would be great) into the park plug hole and replace the plug. Try to start if the engine fires and then dies you have narrowed it down to carb, fuel or timing. FYI get a motorcycle repair or operators manual that describes how to winterize your bike for long storage (check library, you can read for free and make a photo copy of a page cheap). Keep us updated and good luck.
Posted on Apr 19, 2014
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Posted on Jan 02, 2017
SOURCE: wont accelarate
you didnt say if the bike sat up for a while, if it has you have stopped up carbs the bike will run with the choke on but shut off when the choke is off says no fuel going thru the low speed jets clean them by taking the float bowls off and blowing them out with high pressure air
Posted on Jan 04, 2009
change the coil you may not think it got hot but sometimes a coil can overheat on the inside just enough to break the copper winding. when riding hard slow down for a couple of miles to give everything time to get back to normal temps before shutting it off
Posted on Jan 13, 2009
SOURCE: yamaha yz125 wont start...
hello there guys, listen a top tip is when the engine's cold tip the bike almost right on its side nearly touching the floof, wait for the petrol to poor out of the carb over flow pipe, this should take a matter of a few seconds, stand the bike back up again and kick and that baby should start right up, if it does then you have a problem with your float, if it still doesn,t then take it to a shop and get them to check it out, hope this helps. regards sam
Posted on Jan 24, 2009
i have a 04 yfz 450 quad. the compression ratio like yours is extremely high. ive had my battery go bad and found that another battery other than factory would turn over the engine, but would not start. i paid the 100 dollars for the factory battery and it fired right up. because of the high compression you need a high cranking battery.
Posted on May 07, 2009
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