2013 KLR 650 engine cut-off
Hi guys, I've been a forum lurker for a while, but decided to create an account because I'm having issues with my KLR.
It is a 2013 KLR 650, I bought it used with about 3000 miles on it, generally in good condition, a few things that needed care, but a good deal in the end.
I am a motorcycle noob (mechanically speaking), so be patient with me!
I'll describe the issue:
When I start the KLR, the RPMs are just fine, and I can leave my house without issues, but after riding for a while (over 15 minutes or so), the engine starts dying on me when the revs go under 1 thousand. So I have to keep feathering it so it doesn't die on me while I shift down, also, it starts misfiring when I'm in 1st or second. On higher gears I'm not noticing the problem (although it could be there). And after 1 hour or so, if I turn it off, or it dies on me, it is a bit difficult to turn it back on.
I thought it might be the little duct that sucks air into the tank so it doesn't become a vacuum, I disassembled it and it was fine, air went through no problem. I also played with the screw that limits the minimum RPM, I've messed with it so it's always 2 thousand or higher RPM and it still cuts off.
So I'm at a loss here. Previous owner said that never happened to him. The bike didn't get much use before I bought it from him, could it be a dirty carburetor? or clogged needles? if so, I might need to take it to a shop, because that's beyond my meager mechanic knowledge. I just want to know what it could be so I can point the mechanic in the right direction.
One thing you guys might need to know to diagnose the issue. It has an full FMF q4 exhaust kit, and FMF power up jet kit. The exhaust has a crack midway that lets a bit of smoke out, I have to patch that up. Hope this helps.
Anyway, any insight you can give as to what it could be, or if you have had similar experiences, I'd be thankful! please remember I'm a noob mechanic.