Question about 1982 Yamaha XJ 650

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Bike leaves me stranded after 15 mins

Hi i am having this problem with my bike recently. the bike starts fine and i was able to drive it for about 15 to 20 mins before it suddenly wile seaming to run fine the thing shuts down with out warning and backfires like crazy, now once i am on the side of the road the bike will not start no matter what. i unplugged the fuel like line to see if it was getting gas and it was poring out of there so it was getting gas. however once it sits for about 20 mins it starts just fine and runs like it should till it does it all over again and again leaving me stranded making wait 20 mins before i can go anywhere to only drive for about 15mins to get stuck again.

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  • Master
  • 3,799 Answers

Check your ignition coils. Sometimes they fail with an open circuit, this can sometimes close up when the machine is cold and open again when it heats up. So. it will start when cold and fail when it warms up.

Posted on Apr 24, 2013

Testimonial: "how would i check the coil problem do i turn the engine over when its cold and again when its hot? what voltage should i be looking for when cold or hot?"

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

DickCanFixIt
  • 948 Answers

SOURCE: running problem

It takes electrical power to run the ignition system on your bike. If your alternator is not providing that power it must come from the battery. When the battery is out of power, the bike dies. You have a problem in your bikes electrical system. MOST likely is a faulty battery, but could also be alternator or other piece in the system.

Posted on Jan 18, 2009

  • 18 Answers

SOURCE: XV1100 virago ...sputtering, dying...NOT FZR!!

1 maybe there is a diaghfram tear at your carb only 1 is funtioning and 1 block engine is running but under power
2.check your fuel line from tank to fuel filter then pump then carb
probally there is a debrie stuck in the pipe line or in your tank

Posted on May 11, 2009

  • 3567 Answers

SOURCE: 2005 250 f 65 kicks to start

Several things can cause the problem. First, spring for a new spark plug. The stock plug is NGK CR8E. Now the plug is eliminated as a problem. Next, pull the slide out of the throat of the carb. Now remove the jet needle. Put the needle clip on the 4th notch, (this is the stock setting). Use only premium gas. Next, follow the starting instructions below.

There is a proper way to start the engine. Four controls are on your bike to assist in starting.

  • The choke, used when the engine is cold. Pull the red knob for choke.
  • The " Hot Start " Lever, used when the engine is hot. Pull the lever to lean the fuel mix when the engine has been running.
  • The de-compression lever, always used.
  • The throttle, used to prime the cylinder.
Don't kick, instead, push the kick lever downward. You will feel the back pressure as the piston is going upward on the compression stroke to the point the pressure is great enough that the kick lever "locks up". You are very close to TDC. NOW, pull in the de-compression lever. Push the kick lever a little bit more to get the piston past TDC. Give the throttle a 1/4 turn then let it snap closed. A diaphragm in the carb gives a shot of gas when this is done. DO NOT do this multiple times because you will flood the engine. Leave the throttle closed when kicking. Release the de-compression lever and give a strong kick through the full sweep of the kick start lever. Quickly get your foot off the kick lever at the end of the kick to avoid any chance of "kickback" from a backfire. It can be very painful, and can even break a leg. I am serious about that. Repeat the process (but without the throttle priming), until the bike starts. A good battery and clean air filter will also aid in starting.

This will likely tame the beast for you. Please rate this answer. Thanks!

Posted on Jun 06, 2009

  • 311 Answers

SOURCE: bike wont start

check that there is not an air lock in the fuel line,set the fuel tap to"pri"for a few minutes this will take out the airlock,also check that the sidestand switch and clutch lockout switch have not been damaged

Posted on Jul 04, 2009

mb50sa
  • 79 Answers

SOURCE: 1979 dt 175 lower fuel overflow line is leaking

Two possibilities.
1. Your float needle is leaking (most likely). Remove the carb, remove the float bowl. You will see the float itself and it has a tang that touches the float needle. Remove the float and inspect the needle and its seat for dirt or wear. You could try gently tapping the float bowl first, as this may dislodge and dirt, but thats a short term solution.
2. The float level is incorrect. You will need to bend the float tang to adjust. However, find out the float height for your bike first.

Posted on Jun 22, 2010

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