I've been having a problem with my bike for awhile now, and I've asked for help and gotten nothing yet. I am new to this list, so most of you don't recognise my name, and maybe you're just reading the regular posters, or maybe this is some kind of clique that I just haven't broken into yet...
The problem: The bike bogs at about 75% throttle. If I twitch the throttle a little, sometimes it clears up. It doesn't usually do it going uphill. I put about 25 miles a day on my bike, so this problem not only slows me down going to and from work, it is really starting to aggravate the shit out of me.
This is what I've done so far: Adjusted the carb this way and that... Changed plugs, checked gap with the dealer. Looked for a timing adjustment, but haven't found one yet. Pulled the exhaust, cleaned the exhaust port, drowned the muffler with carb cleaner and poked at it with a coat hanger. I blew thru the muffler, and it doesn't seem to be restricted. Opened up the carb and cleaned both jets. Adjusted the oil injection this way and that. I've been running premium gas in it.
I know this has to be a simple problem that many of you are familiar with. Someone step up and help me out, please!
BTW, the bike is a Yamaha QT50 with CDI ignition. Very simple, and mechanically similar to most 'peds out there.