2018 BETA 300 RR Oil Injection wiring check and wiring seal

On our ride yesterday,   the check oil light came one mid ride.   It was intermittent, but had me worried.

There was oil in the line, no air bubbles, and there was blue smoke. More importantly, we rode 20 or so K in some varied snow conditions, and the bike didn’t seize.

I was initially thinking that it was a system malfunction light, when in fact it’s the low oil light (orange arrow) .
Oil injection wire check and seal

Click on the pictures for a more in depth explanation.

Oil Injection system wire check and seal

I’m only looking at the four items circled below on the wiring diagram:
-Low oil switch
-Oil pump
-Condensator
-Diode pack
Oil Injection system wire check and seal

Here’s a few things I found:
-The oil level was low…doooh! I metered the green/white wire,
and had no contact to ground.  Check!
Oil Injection system wire check and seal
-The rear sub wiring loom is pulled through the rear of the oil tank putting pressure on the low oil switch.
This needed to go! Click on the above picture
Gray shows OEM wiring path, yellow new path.

Below, actual oil level triggering the light.
Oil Injection system wire check and seal

I used some 4cm heat shrink to seal all the connectors. I cleaned them 1st with some contact cleaner, let dry then slid the heat shrink over.
Clicked the connectors in, then heat shrunk with heat gun.
Where i couldn’t get it to suck up totally, I either tie wrapped it or squeezed it shut with my fingers.  This was done for the:
-Low Oil switch
-Rear sub harness and all end connections
-Oil pump
-Condensator
-Diode pack

Oil Injection system wire check and seal

I then notched the air box cover and pulled the rear harness over the top
Oil Injection system wire check and seal

Here’s the rear harness pulled over the top, and ready to get tie wrapped and tucked up ahead of the handle.
I also put the low oil wire, and connector underneath the tank to take pressure off the switch.
Oil Injection system wire check and seal

Ok, on to the airbox side.

As found the OEM wiring was in good shape. Click on picture below for full description
Oil Injection system wire check and seal

Condensator was in excellent shape
Oil Injection system wire check and seal

The items were well supported, but the sealing could still be better
Oil Injection system wire check and seal

I broke out the heat shrink and went to town
Condensator was sealed, and tucked inside the sub frame, and tie wrapped. Zero strain on the wiring, and an excellent spot for it.
Diode pack was sealed from the bottom, heat shrunk, then sealed over the top, and heat shrunk. I re-used the mounting hole and secured it to the sub frame
Oil Injection system wire check and seal

Oil Injection system wire check and seal

Topped up the oil tank,fired up the bike, and took it for a short spin. No light, and runs well.  Job done!

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