I have a 2005 1100 Hona Sabre. It runs terrible from idle till maybe 1/4 throttle. To me it sounds like its missing or not properly timed. I checked for air leaks and seems to be ok and also tried adjusting the air screw which didnt seem to help either. It does seem to run better after it is very well warmed up but still not quite right. It also seems to improve when warm if I choke it a little. Once you get the rpm up it takes off and runs great. I did have it rejetted at the honda dealer which when I drove off wasnt sure it was right since when I would back off the throttle it would pop a few times. I thought that was the purpose of having it rejetted. Anyway just looking for suggestions on where to go from here.

Did you replace the fuel filter or have the timing set right or the idle set properly?

start off with basic settings of 1 1/2 turns out on both of them, then adj the "L" which should be closest to enjine to where you give it throttle it does'nt boog down on acceleration then get ready to adj the "H" which is closest to air filter, keep in mind you should always have a new spark plug and new or clean airfilter on the machine before attempting to adjust it, so anyways bring your saw to full throttle and adj "H" to where it 4cycles just a little, in otherwords run it in a little till peak sound(rpms) then back off till just is on the edge of slowing down or garbling a little. then go back to low speed and make sure it is o.k. then cut some wood at full throttle and see if maybe you can open it up some more with out loosing power. remember a hair rich is better any day than a hair LEAN! Good Luck 2StrokeJim

This is something you might not want to hear. The carbs will build with gunk have to be removed to clean the jets.These carb have quite a lot of vacuum lines and exturnal fuel line. Does take some time to makes this repair. If you take it to a shop go ahead and have the jet changed in the process. This is a big change on performance to these engines. You might even smile after the stick shock is gone.

check your air-mas sensor or maybe it could be your TPS(Throttle Position Sensor)

1 turn out is approximate setting fo H and L screws...once running adjust H screw so that it is just rich at full throttle (4 stroking then 2 stroking with out changing screw) once thats right adjust L screw at idle till it starts to pick up speed then just back off 1/8 of turn ....then you can adjust tapered screw to nice idle....if this fails you have carby problem

Sounds like it might be choke? Maybe a vacuum line leaking around the throttle body? Or oxygen sensor? Or throttle position sensor? Or mapp sensor?

Not positive, but I would try those in that order. I hope this helps.

Check fuel pressure.

my truck runs about the same but if the truck is having a hard time staying running maybe the computer in the truck is going out and giving the wrong messages to the truck to run right

and I'm out of ideas. I have a RR 125 Motard with about 12000 miles on the clock. It's been trouble free for the years that I've owned it. Recently I noticed a slight miss when running at part throttle. RPM doesn't matter it misses from idle to almost redline but only when the throttle is in the first 5% of it's range. I did the full routine, carb cleaning, valve adjustment (ugh...shims), air/fuel/oil filters. No change. At more than 5% throttle, there's no miss, and it pulls very strong. At full throttle, I don't have the guts to see the end of 4th gear. Tempurature doesn't make a difference, hot or cold, it runs the same, although when the choke is on (cold) there's no miss (but a high idle). Turning on the choke after it's wamed up it will bog and die (like it should). I suppose I could have missed something when cleaning the carbs, but usually, a little bit of choke will fix that. Not in this case. There's no hesitation when opening the throttle, and under high loads, any RPM, any gear, it runs fine. So, I'm at a loss. I'm open to suggestions. ,Check for vacuum leaks first - carb boots, vacuum lines, etc. Also check the CV diaphragms for cracks, splits and pinholes. Then, I think I'd re-check/clean the pilot jets. Then, if that doesn't help, I'd open the idle mixture screws a bit - maybe 1/8 to 1/4 turn to get a little richer mix.,,,