All good questions, which is why I referred to the manual. On some bikes you can check the float bowl level with the carbs on the bike and the bike on its wheels (i.e. someone holding it level). Others not. I haven't touched a Honda 450 in decades, so I wouldn't venture to guess. I would also hope that the shop manual would have some suggestions if the level were off. Even if the arms aren't adjustable, there has to be some way to fix an abnormally high level (different floats?).redcoat wrote:If I attach a clear tube to the float chamber drain, can i get an accurate result while the carbs are still on the bike? I was thinking of the clear tube from each carb, putting the bike on the centre stand, and taping them to the fuel tank in a big u.
My only fear is that the bike sits slightly nose down on the centre stand, and hence, the fuel may show this incline? Am I right?
Or should I do a bench test?
And if they are wrong, then what? The floats are not adjustable...
Damn I wish i had an old Amal monobloc carb on it...
Since you seemed to have covered everything else, I just thought I'd throw the float bowl test out there. I thought at least if you could find the source of the problem, you'd be halfway there. With poor MPG, smoke and wet plugs, something has to be creating an overly rich condition.
