gs 850 idles and runs to 3000 rpm then cuts out.

[tom203]

Petcock should flow copiously on prime- no sign of dribbling allowed.
At this point, I'd suspect your ignition circuit like chef1366 said earlier. I can't see why carbs would cause this 3k rpm wall so consistently.

[G.Roy]

Hello all,

I've found my problem and it's carburation. After checking my ignition system. My electrical system- all cleaned up and loose contacts repaired. I figured the mid range carburation must be the cause of my 3 grand wall. So I checked the float levels with a homemade drain plug and clear hose tester. I did not know what the levels should be so I checked Bikecliffs website to find out. In the process of checking I found out my slide needles were not mounted correctly. I had the spring pushing down instead of up on the fiber washer. When I changed this around I got a strong rev from my motor and no more wall. I checked and fixed a lot of things pursuing this problem so I don't feel as if this is a loss of time-just glad to have it running right! Now, I will reset idle screws and re-sync carbs and go from there. Thanks so much everyone for the support and feedback. G.Roy.

[850 Combat]

Good for you, and those othr things needed looking at anyway. It wasn't a waste of time.