Yamaha are very clever at marketing and always make sure its dearer to make an engine the hp it could be by buying parts later!
Differences are Carbs/Jets
Exhaust divider plate
Exhaust tuner pipe
Timing (adjustable)
The Yammie V4 is a far superior engine in weight/strength/durability/economy than anything else of its massive 24 year era. Although mid 90s saw production at its best
I have 130B £3,000 see trading post under Phantom 19 for sale
130B Standard with oil injection removed inc prop,controls/cables to suit p16.
£2650 Both engines mid 90s
All the engines i sell are fully serviced with 3 months warranty
Phantom 16's with 130 are great fun as pleasure boats.