Gave it a good clean then flipped it over and took out the small oil seal and polished up it's seat.
New oil seals are not listed in the parts manual but you can get them from places such as T2 Racing and the like
https://t2-r.ocnk.net/product/33
new seal and shaft in place...
and the important 8mm thrust washer....Part# 90443-844-000 goes on top...grease holds it in place
while the larger thin o-ring slides over the sleeve and to my knowledge that's really all you can do
to the oil pump to refurbish it. Replacement of the oil seal is important because they have been known
to perish and drop down into the motor and then there's nothing stopping the 2T tank emptying
itself into the crankcase. I have read on here that some owners will double check their 2T tank
before starting it up to make sure that hasn't happened.
New oil pump cable from T2 https://t2-r.ocnk.net/product/154...it doesn't look long
enough but it simply goes around up over the front of the engine with it's highest point just passes
underneath the power valve controller and attaches to the same cable wheel as the throttle cables
Cable is well made but something seems not correct...you have to know what you are looking at
here for the picture to make any sense. It took forever to get the pump pulley pointer
to line up with the pump pointer with the throttle a WFO....
and then...where the cable attached on the carburettor side my low intelligence is once again challenged-
this doesn't look right- exactly what will hold that adjustment in place? There's not a lot of tension there
and there is no lock nut on either this T2 repro cable or the OEM but there isn't any other way I can adjust
the cable tension so both the carb and the oil pump wheels start moving simultaneously...
to me this is the only smart way the carb side of the cable can be connected but in this configuration
it does not allow any adjustment and on when the throttle is WFO the pointer on the oil pump
pulley pulls way past the mark of the oil pump body..
I think it's a wise move to at first install some clear pump-to-carb lines...so even though you might
have the engine first running on a 30:1 premix you will be able to witness the oil being pumped into the carbs.
Last edited by Hudtm60 on Wed Jul 16, 2025 2:38 am; edited 2 times in total