Hello. I am shure this has been brought up or talked about a million times in this forum. I searched the forum and could not find it though. I am new to the rx1 mountain le and the 4 stroke world with sleds. The primary is bad so I need to do a primary on it. I have been told to go aftermarket since the stock one is bad. Is this true? If so does any one know where to get one. I am assuming the hole primary is bad. Spring weights and rollers and it is pitted on both sides. The secondary looks good though. I do some trail ridding and love to climb. So looking to see if any one can give a rookie some good advice. Calling my local Yamaha dealer has lead me to here. I have went to eBay and found some but I do not get when they say uncalibrated. I appreciate any one who could help enlighten me and point me in the right direction.