Two Stroke Motocross

Two Stroke Motocross Forum => Technical => Topic started by: dirtbikemike on August 01, 2013, 11:40:38 AM

Title: Gear oil
Post by: dirtbikemike on August 01, 2013, 11:40:38 AM: Ive had 2 bikes withing the last year one a kx85 and now a 125 rm. I put 80w-85 bel ray gear saver in both and oil always leaks out of the drain plug. Any idea of why? I always have to top it up
Title: Gear oil
Post by: rlaj1004 on August 01, 2013, 01:36:51 PM: Doesn't sound right, I have 5 bikes, KTM, YZ's and CR and none of them leak out the drain plug. I would check to make sure you are not missing an Oring, or if you have a copper washer on them for sealing, either replace it or re-finish it. (wet sand on a flat surfuce ).
Are you sure they are dripping out of the drain plug or is it leaking somewhere else and that is the lowest point?
Title: Gear oil
Post by: eprovenzano on August 01, 2013, 01:54:59 PM: I'm with rlaj1004 on this one... Not bike should be leaking oil. If it's coming from the drain plug, then your missing a washer or o-ring. Something is amiss.
Title: Gear oil
Post by: TMKIWI on August 02, 2013, 12:20:41 AM: Buy a new alloy washer.
Title: Gear oil
Post by: cnrcpla on August 02, 2013, 01:37:54 AM: Quote
Buy a new alloy washer
Yup, or a copper washer in there and clean the mating surfaces. This may sound like a stupid question, but are you sure its the drain plug? Being the lowest spot under the bike, if it were leaking from a gasket it would collect and drip from the drain plug. Just a suggestion, as lots of people (as in a past owner) will put old, sometimes even ripped, gaskets back in and will cause a leak as well.
Title: Gear oil
Post by: Stusmoke on August 04, 2013, 01:02:05 AM: Quote from: cnrcpla on August 02, 2013, 08:37:54 AM
Quote
Buy a new alloy washer
Yup, or a copper washer in there and clean the mating surfaces. This may sound like a stupid question, but are you sure its the drain plug? Being the lowest spot under the bike, if it were leaking from a gasket it would collect and drip from the drain plug. Just a suggestion, as lots of people (as in a past owner) will put old, sometimes even ripped, gaskets back in and will cause a leak as well.

mmmhmm. If theres no washer she will leak no matter how much you overtorque it.
Title: Gear oil
Post by: dirtbikemike on August 05, 2013, 02:15:57 AM: had no washer. shes all good
Title: Gear oil
Post by: dirtbikemike on August 14, 2013, 11:43:01 PM: l I let the bike sit for a bit and it looks like its leaking from the clip on the case sprocket, does anybody know the name or part number of the seal or part I will need. Its weird though because it never leaked with the other oil when I had it for a couple days, only with the belray
Title: Gear oil
Post by: Stusmoke on August 15, 2013, 01:42:40 AM: So it does it whe nit sits? Are you sure its not just chain lube thats seeped onto the sprocket? I got a rather embaressing fright when i lubed my KTMs chain for hte second time, there was dirt stuck to the counter shaft sprocket and had gone off in straight lines from the centre out! Took me a little second to realise it was just chain lube.

Sounds like you need to replace the countershaft seal though. You should be able to order in a counter shaft seal kit from your dealer easily enough.
Title: Gear oil
Post by: dirtbikemike on August 15, 2013, 05:19:55 AM: yea I'm sure it's not chain grease, it's red belray oil
Title: Gear oil
Post by: Stusmoke on August 15, 2013, 06:06:05 AM: Yup. Order in a counter shaft kit. Should be a pretty easy job too.
Title: Gear oil
Post by: TMKIWI on August 15, 2013, 08:48:02 AM: Have you been riding in long grass.?
Pull the sprocket and see if you have grass wrapped around the counter shaft.
I have had leaking seals in the past and all it has been is grass in the seal. Easy to clean out if carefull
Title: Gear oil
Post by: Stusmoke on August 15, 2013, 08:55:38 AM: Quote from: TMKIWI on August 15, 2013, 03:48:02 PM
Have you been riding in long grass.?
Pull the sprocket and see if you have grass wrapped around the counter shaft.
I have had leaking seals in the past and all it has been is grass in the seal. Easy to clean out if carefull

Thats a good idea. I haven't had it happen to me in long grass but thats probably just raw luck. I'll be sure to watch out for it now, thanks.
Title: Gear oil
Post by: dirtbikemike on August 22, 2013, 10:24:14 PM: So the seal is on back order for a month from the dealer.I found one on eBay but they call it a output shaft seal, same thing? No bearing provided..would it need a replacement? Mine is fine
Title: Gear oil
Post by: rlaj1004 on August 23, 2013, 02:49:38 AM: Should be the same thing. Have you checked motosport. They have a pretty good stock on hand and if not get stuff quick.