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Old 02-07-2019
Dave_o Dave_o is offline
dbw Pro
Join Date: Oct 2015
Posts: 10
480 rr oil leaks.

This pic isn't of my bike, but may as well be. Barely 13 hours on the engine and its dripping oil from both the transmission and engine gaskets. Seems to be yet another 'thing' with some Betas. In this instance, Beta elected to replace the engine.
Tried contacting 01 Moto, but it seems they are no more, is this correct?
If anybody could direct me somewhere I could try and get this sorted it would be much appreciated.


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Old 02-07-2019
Marty MOOSE Marty MOOSE is offline
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Join Date: Apr 2004
Location: Perth W.A
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Call Beta Australia and ask who to go see.

Sent from my Moto G (5S) Plus using Tapatalk
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Old 03-07-2019
Dave_o Dave_o is offline
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Join Date: Oct 2015
Posts: 10
Yep. My nearest dealer is now located on the central coast, a mere one and a half hours drive.
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Old 03-07-2019
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Pete40 Pete40 is online now
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Join Date: May 2002
Location: Boggo Rd. Jail
Posts: 12,906
I think my '07 450 KTM leaked oil from the clutch cover gasket big time on my first ride. Gasket was creased on assembly. Stuff happens. Fixed easy and had no further problem.

Major cases leaking is definitely more of a worry though.
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Old 17-08-2019
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Mescaline Mescaline is offline
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Join Date: Nov 2003
Location: Sth NSW - Cheese country
Posts: 1,794
Have a real good look around the kick starter bung, and the side cover (on the same side as kick starter)
My 2018 480 had an o ring incorrectly fitted in the kickstarter bung, and the side cover gasket was pinched when assembled. Both leaked oil and ended up sitting in the same places as those in the pics.
A good way to find the source is with a bit of baby powder to find the wet spot
2018 Beta 480
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Old 17-08-2019
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hairyone hairyone is offline
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Join Date: Apr 2004
Location: Canberra
Posts: 4,321
Leaks happen when there are faulty seals, O-rings or gaskets:
Possibly warped mating surfaces, sloppy shafts or a sad glitch.

Excessive pressure can & does cause all sealing methods to fail:
Suss-out if your crankcase has excessive pressure & bursting it.

Edit: To accomplish my suggestion above before you pull it apart:
Blip the engine with the oil-filler cap off: Witness any-excess gas.
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Old 17-08-2019
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Roon Roon is offline
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Join Date: Sep 2003
Location: Sydney
Posts: 1,940
Good point H1, I had a new Beta 4T that had a blocked vent tube fitting, the metal nipple that the clear hose connects to behind the barrel was full of sealant so the crankcase couldn’t vent
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Old 09-09-2019
Dave_o Dave_o is offline
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Join Date: Oct 2015
Posts: 10
Upshot for this:

Engine was disassembled and the gaskets replaced, Beta picked up the tab.
Except for the oils and coolant. Fair enough.

Bikes currently up for sale. Shoot me PM interested.
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