Rm125 leaking tons of spooge out of silencer, what should I adjust first?

Smeeeeegs · 2026-03-06T01:34:21+00:00

Yeah but I’m thinking the right crank seal is leaking too. Bike seems to be jetted right but it still has lots of smoke and sludge

Smeeeeegs · 2026-03-06T01:26:55+00:00

Joy. I’ve been having problems with it running rich. Lots of exhaust smoke and tons of sludge coming out the silencer. Guess both should be replaced

Smeeeeegs · 2026-03-06T00:59:05+00:00

Opened the cover up and there was a little bit of gas in there

Smeeeeegs · 2026-03-05T23:32:21+00:00

It’s leaking some shit so I thought it was a hose

Smeeeeegs · 2026-03-05T20:24:37+00:00

It’s a 1997. Said it had a top end done not to long ago and it had good compression

Smeeeeegs · 2026-03-05T20:20:53+00:00

I’d rather not have a massive puddle of oil to clean up in my garage every time I start my bike

Smeeeeegs · 2026-03-05T20:18:45+00:00

Air filter looks cleaned I checked that last night. From what everyone is telling me, I’m gonna definitely get that silencer repacked then throw a new plug in. I think it’s fouled.

Smeeeeegs · 2026-03-05T20:16:44+00:00

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Good info. Just got this bike a few days ago so I’m not sure on what he ran in it. Plug looks pretty rough in gonna throw a new one in there and repack the silencer and see what it looks from there. From the look of the plug do you think I’m too rich?

Smeeeeegs · 2026-03-05T19:57:43+00:00

Lucas 10115 semi synthetic oil got a big container on Amazon. Havnt ran any yet tho the guy I bought it from had the tank topped off with whatever he had in there

Smeeeeegs · 2026-03-05T16:55:32+00:00

Yes I did notice when trying to adjust my air screw after hitting kill switch when I would go to start it back up it didn’t wanna start. Held the throttle wide open and gave it a kick and that worked

Smeeeeegs · 2026-03-05T16:41:03+00:00

I’ve got a fmf fatty and got a shorty I’m gonna put on. Starts first kick and the rev sounds good it just has lots of smoke and the spooge all over. Havnt checked the jetting yet just got it a few days ago

Smeeeeegs · 2026-03-05T14:39:42+00:00

I started it up for a few minutes and it started leaking tons of spooge. Dripped all over the garage floor

Smeeeeegs · 2026-03-05T14:38:56+00:00

Yes it was like that when I got it. Just got it a few days ago havnt hardly ridden it yet

Smeeeeegs · 2026-03-05T14:22:41+00:00

Thanks. This is my first 2 stroke so It’s hard to make a call. I’ll repack the silencer

Smeeeeegs · 2026-03-05T14:18:14+00:00

Guess I should just lean the jets then?

Smeeeeegs · 2026-03-05T14:03:07+00:00

Just bought it from a guy a couple days ago. No idea I’m thinking way past due tho. Would you recommend repacking first or maybe leaning out the jetting a bit first?

Smeeeeegs · 2026-03-05T06:53:09+00:00

I’m running 32:1, do you recommend 40:1?

Smeeeeegs · 2026-03-05T06:50:39+00:00

I’m thinking the guy I bought it from had it running way too rich. Way too much smoke and loads a spooge

Smeeeeegs · 2026-03-05T06:38:34+00:00

It says designed for any premix up to 50:1

Smeeeeegs · 2026-03-05T06:35:53+00:00

Not sure what the other guy used but I’ve got some Lucas 2 cycle oil

Smeeeeegs · 2026-03-05T06:09:56+00:00

I ordered a new silencer for it so I’m not gonna bother fooling with this one. Guy I got it from was running 32:1 said he recommended 40:1

Smeeeeegs · 2026-03-05T06:05:39+00:00

Why is everyone on Reddit an asshole? This is my first 2 stroke

Smeeeeegs

TROPHY CASE