Motorcycle acting weird
My Honda CM 450 runs different depending on my riding position. With my feet on the rear pegs, it starts to bog at 55. It doesn't feel like drag; it feels like powerplant. When I move my feet to the highway pegs, ZOOM! Right as rain. I've checked repeatedly and I'm not riding the brake. I also can't see how the rear pegs interfere with anything. Any thoughts?
You are blocking airflow to the air box is my guess.
With your knees bent there's less wind resistance on your legs.
Apps
Could have something to do with the carbs, floats, float settings, float valves, vents, etc. What year is the bike? Have the floats ever been changed? Leg position affects the center of gravity, and front-to-back angle of the bike a bit, which could affect the float position if the floats are already marginal. How about your leg position affecting the airflow around air leaks in the carb boots? Try a total carb rebuild, new floats, new boots, and carb setup from scratch per the manual. It's hard to troubleshoot something when we have NO IDEA OF THE MAINTENANCE HISTORY. If it hasn't been maintained almost anything could be wrong.
Your flared jeans are flapping over the air intake when you feet are back.
Character, eh?!
CB seems to have right answer see answer video below
There's absolutely nothing moving your feet from one set of pegs to another that should change the way te engine runs.
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