Shot a video of my bike smoking idling. I'll have to get my wife to shoot a video of me riding the bike.
I'm beginning to think it's the crankshaft seal as everybody says.
I cleaned the exhaust port, soaked the muffler in Drano overnight (this seemed to really work), tried running Opti-2 100:1 mix and Seafoam fuel treatment.
All seemed to have helped and despite the smoking the bike runs great at first but after about 20 minutes, it seems to start four stroking. Like it's loading up with fuel and bogging down and then the power drops.
Question is, I've looked at the breakdown in the shop manual but can't really see what all is involved in changing the seal. I know you remove the kick starter, cover then pull the gear off the crankshaft and then press a new one in? Is that it?