When leaning in right turns, engine/clutch slips problem

When I make right turns and lean the bike while accelerating (even light acceleration) i often get a feeling like the engine/clutch seems to slips in and out a couple time very fast. It only happens when i am in a right turn and rarely straight line. Kinda feels like, imagine using the clutch as fast as possible in and out 3 times while making a turn. Its not the best feeling when accelerating, the rpm jumps a bit during these "slips" and dont want the front coming up or sliding and laying the bike over.

I am thinking it has something to do with the engine oil moving to the right side of the engine and the clutch losing lubrication and slipping really fast...? or could this be ignition or something else mechanical?

Does anyone else ever/have experienced this?

Any advice would be much appreciated!

Forgot to mention. the bike is a 2004 FE650 converted to Supermoto.

Stationary, and and while giving a steady increase in throttle, the bike has a perfect rev. So it shouldnt be anything to do with float level or fuel issues.

What oil do you guys suggest? could too thin of oil be the cause? I live in Houston Texas, its pretty hot here...

from a visible view the front sprocket looks nearly new. the bike doesnt have many miles on it.