I'm a newbee and would like to say hi to everone.
I have an 09 klr. After a couple of days sitting in the garage my bike will not start until it backfires. After that ir runs fine. Does anybody have an idea as to what my be causing this.
Welcome T-bone, normally hard starting is associated with tight valves. You don't state the mileage but if it is beyond 7,500 it could be valve adjustment time. The backfiring is unburned fuel in the exhaust system, again it could be the valves are out of adjustment. I am assuming the carb has not been modified etc.
Not that any of the other info is incorrect, but the first thing I'd do is go spend $2.50 for a new spark plug.
Just go to the dealer and get a regular factory replacement plug. Nothing fancy.. Talk nicely to them, and they might even give it to you..
I know it sounds silly, but plugs can and will go bad on 4 strokes.. My Honda Recon 4 wheeler was the same way.. Hard to start, backfired..
New spark plug and it starts instantly and runs perfectly..
It's cheap and somewhat simple. If that doesn't work, then start making changes..
I too get backfires on my new 2011(just got it 03 03 2012). I am thinking its my fault as I may not have the choke high enough and I also should wait longer ( 5 seconds too short) before trying to restart. My bike fires 90% of the mornings no problem, so I m thinking human error. For example I may touch the trottle and thats bad on start up, then flood the bike then try a restart before gas in pipes disapates then KABOOM. So I just thought I would add this as a posibility.
I agree with the new spark plug & shutting the fuel off when parked.......AND maybe a 22 cent mod is in your future. From all my reading on here it sounds like you might have the KLR "Lean" condition.....and the 22 cent mod should clear all that up for you.
My 09 started doing it at 6000 miles at which point I adjusted the valves and did the .22 mod. The problem went away but I don't know which repair fixed it. I now have just over 20,000 miles on the bike and no complaints!
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I know this is a super old post but did you ever figure this out? My 09 is doing the exact same thing at startup. Will not start until it backfires then starts right up.
Runs perfect after starts. Like clockwork. Checked and it's not actually sparking when holding the starter button down . When I let off it sparks.
Maybe this will sound crazy, but my bike does the same, BUT I have found it to be after my 09 sits, I go to start it, and it back fires I get on it PUT UP THE KICK STAND UP and IT has turned out to be the SAFETY SWITCH I don't know why as after it starts I can keep it running and I can put the kick stand down and it wont shut down.
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