Vertical minarelli racing engine for Yamaha BWS/SPY and Aprilia amigo and the like, this is a hyper-racing 70cc engine, it has the new Athena BIG BORE cylinder kit, a 12Ø HPC Stage6 racing crankshaft, Athena variator, RMS racing clutch with Malossi Wingbell clutch bell, a 13/43 gear ratio, and adjustable ignition. this engine has been tested and it is 100% Working
All the new parts:

• Athena BIG BORE 70cc racing cylinder kit with cylinder head (tool for this included)
• Athena variator with new 6x 4-gram rollers
• Athena Platinum Race racing V-belt
• Stage6 HPC 12Ø crankshaft
• Malossi Wingbell clutch bell
• RMS racing clutch
• New crankcase
• New gear cover
• New Euro 1 stator (adjustable ignition, currently not significantly advanced)
• 2x SKF C4 crankshaft bearings
• 1x SKF rear wheel bearing
• 1x SKF bearing for gear cover
• 2x SKF bearings for engine mounts
• 2x FAG bearings for gears in the engine block
• RMS reed valve with Athena Carbon reed plates
• Stylepro variator cooling fan
• RMS ignition cooling fan
• Miscellaneous: 2x oil seals, 1x oil seal for gear cover, 2x reed valve gaskets, 1x gear gasket, 1x pulley nut, 1x clutch nut, 1x variator bushing, 1x kickstarter clutch star, and star for variator cooling fan
• New brake shoes
• Oil pump cover
• New fully synthetic gear oil
• All nuts and bolts replaced with new ones

In total, an engine packed with new parts—practically everything is NEW, and the engine block is in very good condition with all threads intact. The engine has been tested for leaks using the leak-down method and is completely sealed, though using liquid gasket with standard gaskets yields the best results. The stator is brand new and functional.
This hyper-racing engine is, of course, without an oil pump and electric starter, but these can be retrofitted if desired. Note: The holder for the rear brake cable had to be fixed, because part of the block was slightly damaged—see pictures for details, it looks a bit different now! However, the result is good, and the block can be used without issues. The engine is sold without the engine mount axle