gasgas ec 250 oil comeing out of tail pipe (new engine )

[wilson2]

Hi guys
I have just bought a 250 ec 2 stroke with a melted mains so had all that done buy local bike shop new barrel new piston the lot
My problem is that now i have loads of 2 stroke oil comeing out of the exhaust i did have the bike running before the rebuild and did not have any oil comeing out then .
The bike pulls like a train nice power band loads of power all is gooď
can any one help?

[12Bravo]

Take a picture. Spooge is normal, same concerns I had when I got my first 2T.

What mix oil are you using?

How do you ride? This from what I have learned has a huge part of the spooge issue.

[nknudsen]

I wouldn't worry about it, pretty normal, she's a 2T. Did the shop put in extra premix oil to help the break-in? Once broke in you can make some adjustments (premix ratio and oil type, jetting etc.) to lessen the oil out the muffler.

[wilson2]

It has at one time dribble on to the swinging arm i am running 5 litres of fuel to a 100 mm of oil or 5 to 1 is it worth clean out the pipe and a repack on the muffler
Thanks nick

[Caravan Monster]

Assembly lube pooled in the crank case - it'll soon be gone. Also, the jetting might have been messed with pre meltdown to keep it running, and it might need changing to work right with the fresh engine (maybe accounting for excessive spooge)

[jostby]

Originally Posted by wilson2

It has at one time dribble on to the swinging arm i am running 5 litres of fuel to a 100 mm of oil or 5 to 1 is it worth clean out the pipe and a repack on the muffler
Thanks nick

Mine has always dribbled (very slightly) onto the swingarm but usually only if I've been doing slow riding a few times out then hit it hard the next time. It runs so good I've never messed with the jetting any more after getting it dialed in. One piston replacement in 14 years. Why mess with a good thing?

[eff]

Completely normal. Jetting changes can minimize it but not eliminate.

[Mick]

What oil are you using? Did the shop toss some of their fuel in there? Might be different ratio/type than what you use.

One with a lower flashpoint will have less spooge.

For racing I'll run Motul 800 (high flash point)...good for running the bike hard, but for slow trail riding it will spooge. For slow trail riding I use Motul 710 with a lower flashpoint, no spooge.

[Capz85]

if your running the standard jetting spooge is usually an issue,once I started to use a different needle it stopped

Standard needle is crap throw it away