Hey guys - NEED HELP!
Hey all - long time lurker, first time poster. Let me first say that this site has been an invaluable tool with the newest addition to my garage!
I bought an 83 cm250c, 14k miles, maintained well - $500, couldn’t say no.. and until this point it has been nothing but fun.
But now that fun has turned into a headache.
It started with the bike dying on my ride home. By “dying” I mean, after about 10-15 minutes on the highway w/ not quite WOT but close, it completely bottomed out and stalled as I coasted to my exit.
My first thought was the carb, of course. (Although the battery mysteriously was DOA when I tried to start it again)
Was able to pop start it and get home, but it was leaning out (popping from exhaust, sluggish throttle response, basically limped home.) All signs seemed to point to dirty carb, so my next step was to remove the carburetor and give it a thorough cleaning - 24-36hr soak, reassembled to spec (i say with slight hesitation due to limited info on factory jet settings) it was dirty, but not the worst I’ve ever seen.. I felt confident that I had found the problem.
Fast forward to today - bike is completely reassembled as I nervously sat atop of a large hill preparing to pop start it for the first time. (Keep in mind that the battery is still kinda dead, nothing a nice 30 minutes of riding wouldn’t fix)
Now, here’s where things get really REALLY frustrating. I pop start it and it will not idle without holding the throttle - otherwise it bogs down and bottoms out - was able to get it into gear and acceleration is horribly sluggish, pairing with more popping, however now it seems to be running rich - the popping BEFORE the carb cleaning was definitely lean, this seems to be an exhaust explosion.
My first thought was to pull the carb and adjust the mixture screw (2.25 turns out from lightly seated) but this did nothing.
Im now looking into whether or not I fouled the plugs from this whole ordeal.. as well as double checking to make sure it’s seated in the 2 rubber boots completely snug.. but aside from this, I’m kinda at a loss..
Anyway, I figured reaching out may help me to see something I may have overlooked. Any and all input is greatly appreciated!!
Thanks in advance everyone.
Be safe out there! 🏍️👍🏼