you certainly CAN... but things will get fucked up. this is an ISO crank that has been used on a JIS spindle. the pic shows the correct factory ISO bb - the crank arm is just put on, not tightened...
Were talking about ISO cranks on JIS spindle, if ISO cranks sit too far out on JIS it would stand to reason that the opposite would be true and that’s what your picture shows.
you certainly CAN... but things will get fucked up. this is an ISO crank that has been used on a JIS spindle. the pic shows the correct factory ISO bb - the crank arm is just put on, not tightened...