oil light

[trdriver71]

does any one know where the oil pressure sending unit is? Went for a ride got about a block and oil light came on turned around came back home. Engine doesn't seem to be knocking but did not run it too long, just finished doing a valve adjustment to it seemed to running good until i went for very short ride.

Hope my engine isn't screwed.

[TopCatGr58]

Hey there,

I guess you may not have downloaded any manuals from Catatonic Bug's profile links yet??

The sender unit is directly below the carbs on the engine/case, with 1 wire going to it. That wire can get frayed, and if any exposed wire touches the frame/case, the light will come on. Also, the light can be an indication that you have a tail/brake light out as well. The wire is just the ground that completes the circuit.

Also the sending unit can sometimes/rarely gets stuck shut, and can be removed and cleaned out with carb cleaner or such and a stick to push in on the plunger to move it against the spring while cleaning/spritzing.
T.C.

[trdriver71]

i have the clymer manual but could not find anything on the sending unit and tried looking through the one i downloaded off c-bugs site. I never even thought to check the tail light will run right out to the garage and check now, because it came on suddenly while i was slowing down for a light so maybe tail light may have burned out.

[trdriver71]

went out side and checked the tail light and sure enough it was burned out. If it wasn't for this site i would have spent hours diagnosing that oil light problem. thanks a bunch top cat.

[my79is2bad]

Had the same Issue w/ my bike. cept my bike would rattle lose the light connection outta the taillight. got it crimped in there hard now

[trdriver71]

yeah i was worried i had screwed my motor some how thought maybe i got something in the crankcase somehow or i had cut the oil sending unit wire some how. I was really upset started looking through the manual couldn't find anything on the sending unit. Replaced the tail light started all is good now no oil light. Yaaaahhhh!!!!!

[my79is2bad]

Oh how the simple things in life bring us the BIGGEST smiles

[Deathdeelr]

Since my wife blew up the motor on her VMax a few years ago I've been a nut about oil pressure. I put the sending unit on a t-fitting and piped a gauge off the right side of the bike. If I ever have a question all I do is look down.