I need some advice.
I recently rebuild my 500 as it had piston slap it has 3000 miles. I used oversized Wiseco pistons (502cc)with ceramic skirts and re-bored the sleeves piston to bore clearances where set at .0038. 500 miles later the piston slap is back only on the front cylinder just like before. The bike was rebuilt by a reputable guy with lots of experience but I cannot work out why its come back so quickly. I know there a common problem with these engines and the way that front cylinder wears on the thrust side/intake side. The pistons have 4 oil control holes to lubricate the skirt of the piston whereas the stock ones had 2. The bike has not been tipped over or drowned or overheated, I really need some advice to a cure to this problem because it gets costly rebuilding every 500 miles lol.
I need some advice.
I recently rebuild my 500 as it had piston slap it has 3000 miles. I used oversized Wiseco pistons (502cc)with ceramic skirts and re-bored the sleeves piston to bore clearances where set at .0038. 500 miles later the piston slap is back only on the front cylinder just like before. The bike was rebuilt by a reputable guy with lots of experience but I cannot work out why its come back so quickly. I know there a common problem with these engines and the way that front cylinder wears on the thrust side/intake side. The pistons have 4 oil control holes to lubricate the skirt of the piston whereas the stock ones had 2. The bike has not been tipped over or drowned or overheated, I really need some advice to a cure to this problem because it gets costly rebuilding every 500 miles lol.
