I have a 4 stroke viper 90R that started giving me issues. It bogs down which isn't a huge deal since my kid is new to riding. If you open throttle wide out almost stalls then goes but makes an almost missing / cutting out noise which is new.


Yesterday she ran it for a half hour and when she came back it was dumping oil on the kick start side. I pulled the cover and front gears and the oil output seal was pushed completely out of its seat. I pushed it back and drove it for about 2 minutes and same issue. Seal is pushed out odd it's seat.... Any ideas what may cause this? It's tight and no visible tears. Thanks in advance!