Q. will everything be the same on the new motors foot peg bolt pattern ? A. yes _________________________________________________________ Q. what about the exhaust system mounting ? A. the rear mounting holes will be moved forward because the cylinder is 15mm or about 9/16" longer. _________________________________________________________ Q. change in the head clearance for front fender ? A. it will be 15mm or about 9/16" closer to the front fender. make sure your forks are not bent back some, little kids like to bump into things and it moves the forks closer to the engine. _________________________________________________________ Q. will the drive chain cover still work ? A. yes, you may need to modify the front sprocket cover that comes with the new motor some. _________________________________________________________ Q. will the bottom skid plate work as before ? A. yes _________________________________________________________ Q. what else should / will I have to modify besides adding the battery and start switch for the swap . A. you will have to stuff in the included CDI UNIT, Regulator/rectifier and switch out the old ign coil with the new CDI coil. i tuck all this stuff back inside the frame cavity, top part behind the engine. _________________________________________________________ @ WIRING_DIAGRAM FOR_HOOKING_UP AN/THE ELECTRIC STARTER @ LIFAN ENGINE MOUNT DIMENSIONS CUSTOM & ENGINE SWAP PARTSKITS FOR ALL CT70'S Z50'S AND OTHERS