Missing head gasket?
Close
         
Results 1 to 3 of 3
  1. #1
    Senior Member PalmStateCrawler's Avatar
    Join Date
    Aug 2011
    Location
    Cayce, SC
    Posts
    3,109
    I have been completely restoring my bw80 and when I pulled the head I noticed there is no head gasket! I have not pulled the cylinder yet but I see that it does have the base gasket. I know there is supposed to be a head gasket on there but it has been running since I bought it without one. Is there anything wrong with not running a head gasket? I am about to order one, But just curious, does it effect performance? I am new to 2strokes and have been taking it apart cleaning/inspecting and reassembling to learn more about them.
    '13 690 Enduro R too many frickin farkles...
    '07 KLX250 farkled (wife's bike)
    '86 BW80 farkled to size
    '10 TW200 you will be missed

  2. #2
    Senior Member lizrdbrth's Avatar
    Join Date
    Jul 2010
    Location
    Desert, SoCal
    Posts
    7,369
    Running without one would increase the compression ratio. No way it would be worth the risk of potential sealing problems or predetonation.



    I can explain it to you, but I can't understand it for you.

    Powdercoated '87 frame, extended swingarm, YZ fork legs, ATV tire, 14/55, XT350 tank, spliced quick-release seat, disc brake conversion, beeg headlight, beeger rack, Lizrdcooler, Lizrdventz and bunch of other stuff all covered in invisible ink.

    Hidden Content

    Hidden Content

  3. #3
    Senior Member PalmStateCrawler's Avatar
    Join Date
    Aug 2011
    Location
    Cayce, SC
    Posts
    3,109
    Thanks LB. I was thinking maybe the p.o. didn't put one on to raise compression instead of milling the head. Strangely enough I found an unused one in the box of spare parts. This lead me to believe he may have simply forgotten to put it on working in a hurry. After cleaning out the ports and muffler i'm putting it back together now. It's a real pain to get the rings compressed to re-install the piston. It got late so I will try the zip-tie method tomorrow.
    '13 690 Enduro R too many frickin farkles...
    '07 KLX250 farkled (wife's bike)
    '86 BW80 farkled to size
    '10 TW200 you will be missed

Sponosred Links

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. what tool am i missing?
    By dutchbat in forum Technical Help
    Replies: 8
    Last Post: 06-02-2013, 12:28 PM
  2. That !$%/* head gasket leak keeps worsening!
    By Guitarman in forum Technical Help
    Replies: 12
    Last Post: 06-06-2012, 07:20 PM
  3. Head gasket leaking oil?
    By Udoug in forum Technical Help
    Replies: 5
    Last Post: 10-25-2011, 01:01 AM
  4. Replies: 3
    Last Post: 08-15-2011, 07:43 AM
  5. Missing bolts?
    By TW_in_BC in forum Technical Help
    Replies: 4
    Last Post: 09-06-2010, 02:19 PM

Search tags for this page

head gasket

,

yamaha bw80 cylinder gasket installation

Click on a term to search for related topics.