
Mad, i would say no, but i could be wrong. the only guaranteed answer would be to have access to that bike and the HONDA engine, and to trial-fit the combo. this also looks more like a MB triangular-type frame more than a comfort/hybrid/cruiser frame, which has "bulging" top and bottom tubes.
i could be wrong, but then my 80cc 2-stroke engine is 7.5" long, 4.625" wide and 8.5" high(without sparkplug). in comparison, the HONDA engine is 10.8" long(+3.3"), 7.7" wide(+3.075") and 13.9" high(+5.4").
the 4-stroke Grubee engine mounting plate is flat. unsure if the plate is versatile enough to pivot forward/aft to facilitate the HONDA'S mounting. maybe the GRUBEE mounting plate won't work, because the HONDA engine is 3" wider than the chinese 2-stroke engine.
then again, the plate might be the correct size, because the 4-stroke chinese engine is wider than my engine.
then there's that rear disc brake system to contend with.
hopefully someone with more knowledge will pass this way.
good luck,
Myron