I have seen alot of post dealing with starting a 426. I can only speak of my bike "stock 02 YZ426F'. I have had mine for a month or so.. and have not had a problem. I watched the Yamaha web site starting procedurs, and I took note when my salesman showed me hoe to start it. I have since learned by trial and error that I need to give the Blue Beast 2 blips before the 1st kick, and she fire right up. If I have been ridig and want to restart after stall just kick' if that dosent work pull the hot start and repeat. I hav no prob with my 426. Ridw ON.