KDXRIDER.NET

stnd wrote: 03:54 pm Nov 26 2023 Hi,

Winter is coming and I thought I wanted to rebuild my KDX. Yesterday I started tearing it down but did a compression test and it clocked in at 150PSI which i believe is pretty good.

The reason I wanted to tear into it is because I thought the right crank seal is leaking since my boot keeps getting oil sprayed onto it and oil is leaking out of the clutch cover where the lever goes into it. I read that the only reason it should spray out is when pressure escapes the main chamber through a leaking seal.

Really not sure what to do at this point. Leave it be, or tear in and replace everything. I have 60 hours of trail riding on it, and don't know the bike history. Power delivery is good, but the leaking always bugs me.

Any advice?

SS109 wrote: 04:59 pm Nov 26 2023 Hmm, maybe you should just R&R the right side case cover and throw all new gaskets and seals on that side and see how it goes. How's your plug look? Do you foul plugs? Does it excessively smoke?

kdxdazz wrote: 08:15 pm Nov 26 2023

stnd wrote: 03:54 pm Nov 26 2023 Hi,

Winter is coming and I thought I wanted to rebuild my KDX. Yesterday I started tearing it down but did a compression test and it clocked in at 150PSI which i believe is pretty good.

The reason I wanted to tear into it is because I thought the right crank seal is leaking since my boot keeps getting oil sprayed onto it and oil is leaking out of the clutch cover where the lever goes into it. I read that the only reason it should spray out is when pressure escapes the main chamber through a leaking seal.

Really not sure what to do at this point. Leave it be, or tear in and replace everything. I have 60 hours of trail riding on it, and don't know the bike history. Power delivery is good, but the leaking always bugs me.

Any advice?

who ever wrote about the pressure of the leaking seal doesn't know what he is talking about, the gearbox is vented and never pressurized, i would just change all the external seals and enjoy it, cheap and easy, if you do a rebuild later down the track then the seals are already changed anyway, then you only have crank seals to change

kdx633 wrote: 04:09 pm Nov 27 2023 I know pictures can be deceiving but are those little globs of aluminium on the plug?

bufftester wrote: 06:46 pm Nov 27 2023 The clutch actuator leak is a simple seal. The leak around the KIPS cover on the LH side of the engine is also an O-ring. Just looks like the bike has not been given preventative maintenance for a bit. With 150 psi compression IIWM I would replace those seals like SS109 and kdxazz suggested and ride it until it really needs service.

stnd wrote: 07:35 pm Nov 27 2023

bufftester wrote: 06:46 pm Nov 27 2023 The clutch actuator leak is a simple seal. The leak around the KIPS cover on the LH side of the engine is also an O-ring. Just looks like the bike has not been given preventative maintenance for a bit. With 150 psi compression IIWM I would replace those seals like SS109 and kdxazz suggested and ride it until it really needs service.

Thanks for the advice. Do you know what the seal on the clutch actuator is? Looking at the fiche I don't see any seal. Found it. 92049-1262

https://www.kawasakipartshouse.com/oemp ... 387/clutch