hello all, looking for some help with a 2007 40hp 4 stroke yamaha. starts fine everytime, idles perfect, shift into gear and goes up steadily through the revs and will reach wot....but... do this quickly and she will bog and stall unless you are quick to pull back on the throttle. i have replaced plugs, removed carbs and cleaned with carb clean/comp air. i dont have leak down gauges so done a compression test, alls well. timing is 5deg atdc at idle and 25 btdc at 5000 rpm. carbs are ballanced. and fuel pump was at nearly 3psi. i am not sure on the pitch of the prop (havent looked) could this still be a carb issue or maybe the prop pitch....any help would be much appreciated.. thanks in advance..
regards kenny
regards kenny