Low idle , FI light on after warmed up

On these and many other vehicles, use a vacuum refill coolant air lift.This removes all air in the cooling system and then fills the cooling system fully with coolant.

make sure to check your coolant tank at every fill-up for a few fill-ups. This problem has a way of coming back if you don't top up your coolant at just the right times.

COULD BE A SMALL KNOB IN MIDDLE OF CARBS, A BIT CLOSE AND TIGHT.

Ensure that the engine is warmed up to normal operating temperature and the enrichener knob is pushed all the way in BEFORE adjusting engine idle speed. It is possible for a properly warmed up engine to idle above the normal idle range of 950-1050 RPM with the enrichener knob pulled PARTIALLY OUT. If the bike has no tachometer attach one or attach a DIGITAL MULTIMETER equipped with an RPM INDUCTIVE PICKUP over front spark plug cable to monitor engine RPM. Then start the motorcycle engine and let it run until it reaches normal operating temperature with enrichener knob pushed fully in (enrichener closed). Then set the idle speed to 950-1050 RPM using a special CARBURETOR IDLE ADJUSTER and tip. Turn clockwise to increase idle speed and turn counterclockwise to decrease idle speed. The throttle stop screw in on the right or front side of the CV carb.

will be a sensor problem need to get the OBD read by a suitable mechanic

If your oil pressure light is coming, you probably have low oil pressure caused by worn engine parts. Usually low oil pressure is observed when you are idling since the pump is pumping slowly. When you raise RPM's, the pump speeds up and pressure increases. Take the bike to someone who can diagnose it properly, but it sounds like it is time for some repairs.

Gary

when does it overheat ? wile driving at hiway speeds ? or at idle or wile driving in stop and go traffic ?

if it overheats on the hiway, supect a restricted radiator, or a blown head gasket or cracked cylinder head.

if it only over heats at idle or in stop and go traffic, supect no cooling fans.

The idle speed is controlled by the bikes computer, the ECU. The 1500RPM idle is normal. If you purchase a Race ECM from Erik Buell Racing (http://www.erikbuellracing.com) you can get one with a slightly lower idle programming. The bike does not like to idle low, hence the 1500RPM stock idle.

If you bike is equipped with a carburetor, the idle stop screw is located at the top of the carb on the right side. Counterclockwise turn slows the idle speed.

If you bike is fuel injected, a dealer or shop will have to set the idle speed electronically.

Good Luck
Steve

after the bike has warmed up, then reset the idle to approx 1000rpm. then see what happens when its cold. some bikes are cold blooded and the use of choke is necessary for a bit, at least until it warms up...