Loydee, have heard of people omitting the sheids and not replacing with a shim without incidence but for mine I'd like a shim to be fitted. It's only 0.80mm thick and not hard to find something. Suzuki's preferred method in the old days was to leave the pump intact and run premix for the top end. You swap the top end feed line onto the lower end feed banjo on the oil pump and block off the other banjo. You then remove the cable and lock the pump in the position of the first mark on the lever and body and run premix in the top end. With the oil guide plate and pump totally removed ideally you should drill a hole in the cases above the left main to have it feed mixture to the outer area between the seal and bearing. The inside of the bearing picks up oil from the mixture but the outside of the bearing against the seal will starve and run dry without this feeder hole. It may go bang and it may not go bang but if you look in your RM100 cases you'll see where it needs to be positioned and I believe Mr Suzuki knows a heck of a lot more than me in this regard so I'd follow their example. To save any drama of boring holes in the wrong places I still run the pumps on my bikes but only to feed the left main, the rest is from the premix. The genuine bearings are expensive but once replaced you won't have to look at them again for a long long time as the cci system really does give them an extra lease on life via the constant supply of clean fresh oil.
