1990 EVO Engine problem.
Club Member
Joined: Jun 2007
Posts: 45,429
Likes: 2,898
From: Bedford UK
Dirt don't hurt
Joined: Jan 2011
Posts: 21,066
Likes: 4,568
From: Haslet Texas
Gotta love the EPA!!!!
Think about running down the road.
Is it easier to breath in clear air or a dense fog???
Engines gotta breath!!!!
Club Member
Joined: Jun 2007
Posts: 45,429
Likes: 2,898
From: Bedford UK
Road Master
Joined: Sep 2013
Posts: 1,054
Likes: 441
From: Tejas
Check out "Catch cans" for autos.
Keeps the extra build up out of the throttle body area and keeps the upper intake manifold a lot nicer on certain cars. My Charger being one of them.
I pour out about 2 oz per oil change in my car.
Griz
Keeps the extra build up out of the throttle body area and keeps the upper intake manifold a lot nicer on certain cars. My Charger being one of them.
I pour out about 2 oz per oil change in my car.
Griz
Seasoned HDF Member
Joined: Jul 2014
Posts: 8,632
Likes: 3,391
From: Cental, MI
Shouldn't be much, oil in the "mist" anyway..
If we were looking for every last horesepower, we would understand that Harleys bottom ends don't breath very well...an evacuation pump is best...otherwise...Sucking out the bit of pressure in the bottom end can't hurt...assuming a tight engine with little blowby..old high mileage engine?? bound to be too much oil to be sent to the combustion chamber.
I have both ways...Hell...all 3 ways as my dragbike earned an evacuation pump...
If we were looking for every last horesepower, we would understand that Harleys bottom ends don't breath very well...an evacuation pump is best...otherwise...Sucking out the bit of pressure in the bottom end can't hurt...assuming a tight engine with little blowby..old high mileage engine?? bound to be too much oil to be sent to the combustion chamber.
I have both ways...Hell...all 3 ways as my dragbike earned an evacuation pump...
This isn't about the breather setup. OP's carb is dumping gas into the motor. Needs a rebuild. I'd guess that the needle valve has hardened with age.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
Jason Momoa Is Turning Classic Harleys Into PHEVs
Verdad Gallardo
Harley-Davidson Fat Boy Becomes a Dark, Decepticon-Inspired Custom
Verdad Gallardo
6 Weirdest Harley-Davidsons Ever Sold to the Public
Verdad Gallardo
7 Times Harley-Davidson Chucked Tradition Out the Window
Verdad Gallardo
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Seasoned HDF Member
Joined: Jul 2014
Posts: 8,632
Likes: 3,391
From: Cental, MI
Sumping is Sumping...tho in this case it sumped Fuel...that means it ran down past the rings....Not Good...but might be OK.
The term Sumping stems from something [generally oil] being in the normally Dry [empty] Sump of the engine.
ie...In theory, all of the engine oil [and gas too] stays in the appropriate Tank.
The term Sumping stems from something [generally oil] being in the normally Dry [empty] Sump of the engine.
ie...In theory, all of the engine oil [and gas too] stays in the appropriate Tank.