Question about 2004 Yamaha FJR 1300
I am at a loss on my bike. It has a hesitation right at the start and after its going it runs perfect. The idle is steady and strong. The power after about 2500 rpm is great but I just can't get is to launch very well. I have checked my plugs and when idling it is running rich, but when I have taken it for a good ride and take out the plugs they look good. I have had my carbs cleaned and run seafoam through them. Where should my air/fuel mixture adjustment be set? They are now about 4 turns out which seems a little excess. The Haynes manual does not have much on setting the carb. Can any one Help
With the mixture screws out 4 turns, I would bet your piloit jets are too big. Try the next size down and see how it runs at low rpm. You don't want the mixture screws turned out 4 turns on any bike, nor all the way in. 1-3 turns out, closer to 2 is better, is a good general rule for setting them on most carbed bikes. If you have the right jets in the carbs, a quarter to half a turn on the screws makes a noticable difference, if you can crank them around all over and not change the way it runs much, the jets are wrong.
Posted on Nov 10, 2008
Take a look at this web site. Follow their instructions and I'm sure you will be able to fix the problem.
Posted on Jun 09, 2009
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Posted on Jan 02, 2017
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