So after a few months of riding my MB200 and delving deeper into working on 4 stroke engines, I've noticed a few things... Below are the questions and anyone who knows scientifically what is going on, please chime in:
Note: I have a stock 212cc Pred in the MB200 and it has maybe 60-70 hrs on use on it with no issues whatsoever.
1) Why does the engine backfire after a long stretch of WOT (that is say 300 feet +) running and I suddenly twist the throttle shut (like close it faster than the normal spring return would)?
2) It may be just my imagination, but it seems like 5 minutes or so before I run out of gas (which I define as the bike slows in rpm then dies and I cannot restart it next pull), it seems like the engine has more "pep" or torque? It almost seems like it has beefier throttle response?
3) Why is it bad to run a really small short pipe exhaust header with an OHV engine with stock valves?
That's it for now, I might have other questions later on.
Note: I have a stock 212cc Pred in the MB200 and it has maybe 60-70 hrs on use on it with no issues whatsoever.
1) Why does the engine backfire after a long stretch of WOT (that is say 300 feet +) running and I suddenly twist the throttle shut (like close it faster than the normal spring return would)?
2) It may be just my imagination, but it seems like 5 minutes or so before I run out of gas (which I define as the bike slows in rpm then dies and I cannot restart it next pull), it seems like the engine has more "pep" or torque? It almost seems like it has beefier throttle response?
3) Why is it bad to run a really small short pipe exhaust header with an OHV engine with stock valves?
That's it for now, I might have other questions later on.