Welcome guest, is this your first visit? Create Account now to join.

Welcome to the Motorcycle Forum.

Register ButtonIf this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed.

+ Reply to Thread
Results 1 to 3 of 3

Thread: oil leak

  1. #1
    Newbie
    Posts
    1

    oil leak

    I have a í67 Honda CL160 that I have completely restored. Iíve started the bike and itís running but not great. Two problems.

    First I have a fairly significant oil leak that is showing up around the left side exhaust. The oil appears to be leaking out from around the exhaust pipe. Itís not the tappet cover cap, or valve cover. Iíve also looked around the point base housing, but I canít see any significant oil. The engine isnít smoking, so would that rule out a broken ring?

    Second question is on adjusting the carburetors. Is there a starting point for the air and stop screws, such as 2 turns from stop? Thanks

  2. MotorcycleForums.net is the original Motorcycle Forum! Registered Users do not see these ads. Please Register - It's Free!

  3. #2
    M-J Lifetime Achievement Award
    My Bike(s)
    '10 Kaw Vulcan 900 Custom
    Location
    Ocala, FL
    Posts
    8,715
    Quote Originally Posted by ed1966ss View Post
    The engine isnít smoking, so would that rule out a broken ring?

    Is there a starting point for the air and stop screws, such as 2 turns from stop? Thanks
    I wouldn't rule out a ring problem, stuck, broken or just worn out.....without a compression test. Also could be oil coming in around an exhaust valve because of a bad valve guide seal. I guess it is possible to have an oil leak like that due to a head gasket problem........but I doubt it.

    2 turns from closed would probably be a good starting point for the mixture screws. The "stop" screws are just a mechanical throttle stop and both need to be in exactly the same place and set to accomplish the correct idle speed.
    That adjustment is referred to as synchronization and a vacume operated "tool" is used to set them together. There should be a "master" idle speed screw that affects both of them together for setting the idle speed.
    Once the individual ones are set, they should not be moved.

    Come to think of it.....there is usually one master speed screw and then one individual one to set the sync.

  4. #3
    Just Won't Go Away !
    My Bike(s)
    several
    Location
    Buford, GA
    Posts
    5,197
    The most common sources of oil leaks from exhaust ports are, in order:
    - a gasket above it, like for a cam cover or valve cover, leaking down the side of the engine and dripping off the exhaust pipe
    - worn or broken rings that let oil leak past and get blown out the exhaust
    - a plugged or broken breather, causing crank case pressure to rise and push oil past the rings (the leak will get worse the longer the bike runs)
    - bad valve seals, allowing oil to leak past the valves (though this is almost universally accompanied by blue smoke on initial engine start up)

    A lack of smoke does not rule out the rings, one of the most common causes, because if the motor runs poorly and you only ran it briefly then it did not get hot enough to ignite all that oil and cause smoke.
    You MUST obey the pug dog!



 

Ads

 

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

Similar Threads

  1. oil leak
    By bubbadilla in forum V-Star ship the enterprise
    Replies: 4
    Last Post: 05-31-2009, 09:25 AM
  2. Oil Leak
    By rmnc3r in forum Roadliner
    Replies: 4
    Last Post: 03-30-2009, 09:46 AM
  3. oil leak!!??
    By soudorio in forum Bandit Lair
    Replies: 6
    Last Post: 08-13-2008, 04:15 PM
  4. Oil Leak? Say What????
    By bm50Chapin in forum Marauder M50 Secret Hideaway
    Replies: 7
    Last Post: 09-18-2007, 05:41 PM
  5. Oil leak - help
    By nurider in forum Mechanics Corner
    Replies: 2
    Last Post: 11-24-2004, 02:26 PM

Search tags for this page

motorcycle blowing oil out exhaust

,

motorcycle leaking oil from exhaust

,
my shovelhead leaks on the left side of motor why
,
oil coming out of exhaust port on 2010 polaris rzr 800 s
,
oil leaking from exhaust motorcycle
,

oil leaking from exhaust on motorcycle

,

oil leaking from motorcycle exhaust

,
shovelhead blowing oil out exhaust
,

shovelhead oil in exhaust

,
why is my motor bike driping oil out muffler
Click on a term to search for related topics.