Just did 48mm bbk and oil leaks from exhaust

[Meatball]

85' NQ50. Just did the Taz 48mm bbk upgrade and Im in the break-in period with 50/1 mix. After my short trips at low speed/rpm for break-in, I notice oil leaking from the connection at the exhaust manifold and exhaust pipe. My gasket looked ok (I thought) so I just re-used my old one. Its not leaking a ton but its beginning to pool in the valley below the exhaust connection. Should I just buy a new gasket? Wouldn't that just force the oil into my muffler? It seems to run fine in the 3-4 miles Ive put on it since the install but I haven't gotten into the higher rpm's yet for break-in. Thoughts?

[Peteyparado]

Change it!!! Your motor will be running at higher temps.. I would stick to heat cycles for now.. If u have to run it keep at lower rpms an short trips..

[Meatball]

Low rpm's are extremely rough. Once I get moving to about 6-7mph, it wakes up and purrs to 15mph. That's as fast as Ive gone then I let off. Im taking it real slow and easy. Its the 0-7mph range that it doesn't seem to be happy with. Does that have to do with the extra "break-in period" oil mixture Im running? Also, its very faint but its blowing smoke too. Not bad but you can see it for about 6 inches out of the tail pipe under acceleration. Is that to be expected with 50/1 mix?

[Peteyparado]

U still running oil pump?? An 50/1 if so smokes ok.u got a tach gauge ?

[Meatball]

Yes, still running oil pump and just adding oil to the gas tank to total 50/1 together.

[patthesoundguy]

Two stokes smoke some I ran my bbl with way more oil than that and it was perfectly fine. I would almost do 50:1 in the tank plus the pump but that's just me. And I had the intake and carb so I could tune for the extra oil, which I did do and ran my bbl a ton and hard with no problem. I'd still.be running my bbl on a spree if it hadn't eaten a reed stopper spring from the intake at almost 11k rpm. I would tune for 32:1 final gas to oil mix including the pump. And don't rush the break in. It takes time, if you rush it you'll regret it.

[Wheelman-111]

Greetings:

50:1 + Pump = WAAAY too much oil. One or 1.25 oz/ gallon max! No wonder it smokes, you're running like 25:1.

[Meatball]

thx Wheelman. Ill change it and report back.

[patthesoundguy]

25:1 wouldn't hurt for a short time for break in but wheelman is right 25:1 would so smoke like mad

[benji]

Ya, too much oil for the motor to burn will always go somewhere... especially when it's hot and thinned out w gas, and has higher pressure behind it. I get some oil leakage from my exhaust too, even w a new gasket. I think it might be a sign of an incomplete burn, like it's just not running effecient enough to keep that oil from hitting the outside of the combustion chamber. But oil always finds a way out. that's why I have to keep a rag under my bottles of olive oil in the kitchen, even tho I'm sure that glass doesn't leak!

[Meatball]

Has anyone tried to add a thin copper washer in addition to the stock exhaust gasket? I installed a new OEM exhaust ring and Im still getting seepage from the connection. Its not a gusher but still an annoying drop or two on the crankcase after a short trip around the block. When I look at how it supposed to seal on the ring, I can tell that the protruding 1/4" (or so) of pipe from the exhaust flange is intended to slip inside the ring and the seal is created by the flange contacting the ring. However, when I crank down my exhaust nuts my exhaust flange is completely bottomed out on the head. I just cant tighten it anymore without broken studs or a broken flange. MY IDEA, add a thin copper washer BEHIND the exhaust ring to "shim" the ring further out for positive contact with the flange. Any thoughts?

[Rip_City_Spree]

Trust me you don't want that! Have you seen the gaskets G9 sell on his website. Think they might a good option if they fit on your motor.

[Meatball]

Will these fit my Spree?
http://www.scooterswapshop.com/products ... ust-gasket