I recently bought a Suzuki gr150. Got oil change and tuning done from kashif Suzuki center township Lahore.
After roughly 2000km the bikes oil has reduced from almost full to just above the low mark on the sight glass.
There is no smoke on cold starts or when full throttle . No oil on the spark plug. No oil burning smell after riding hard and absolutely no leaks anywhere.
I will replace the oil today with 20w50 mobil1 or blaze 4t and then see what happens.
I did notice a ticking noise from the engine after the engine warmsup. I can't see to figure it wether it is the timing chain or the tappets.