Engine will not idle
Really need some assistance on this one....a few weeks ago after traveling a few miles on my 99 LTwould and coming to a stoplight the engine would idle rough between 1000 - 800 RPMs but would smooth out with an increase in throttle...last week after just a few minutes under throttle and coming to a stop the engine initially idle smooth at 1000 RPMs then dropped to 800 - 500 RPMs for a few seconds, followed shorty by a cutoff. This week it has gotten progressively worst and now after running for just a couple of minutes at idle, it will drop to 500 RPMs and then shutoff. Can start up imediately and after a few seconds RPMs drops down and shuts offs. Engine is very strong and smooth under acceleration and cruising and always starts immediately. Here is what I have tried so far with no luck:
-Canisterectomy performed correctly, tank is properly vented with no restrictions, no vaccum suction when removing the gas cap, plus all 4 vaccum leads vertified connected and secured to the intake manifold
-Checked Plugs, only have 3,000 miles and looked good, plug wires looked OK.
-Charged/checked battery, it's is 4 years old seems great and cranks the engine very strong (12.9v static, 12.5v key on, 10.4 cranking, 13.9v running)
-Tank drained twice and checked for blockage and any restriction in the filter...used gas from 2 different gas stations, plus ran fuel injector cleaner.
-Reset throttle position sensor 3 times.
My bike will not idle at all after running for a few minutes when first started, have tried everything that I can think of at this point......any other suggestions or solutions would be greatly appreicated.