engine rebuild
Close

engine rebuild

This is a discussion on engine rebuild within the General forums, part of the Caferacer.net Forums category; Hi, I'm new to the board and I'm looking for a bit of help. I have an '80 cb750f that Iwould like to get running ...

Results 1 to 7 of 7

Thread: engine rebuild

  1. #1
    roszko's Avatar
    Join Date
    May 2003
    Posts
    2

    engine rebuild

    Hi, I'm new to the board and I'm looking for a bit of help. I have an '80 cb750f that Iwould like to get running again. I don't have time to rebuild my motor and was wondering if anyone could recomend a shop in Mass that could rebuild it. I did minimal research into finding out whats wrong... It lost power very quickley one day, started backfiring, and then quit starting. I did a compresion test on only 2 cyl bith were very low. what do you think, top end?
    Any help would be appreciated
    Mike


  2. #2
    Guyman's Avatar
    Join Date
    Oct 2002
    Posts
    127
    Might be easier and cheaper to find a running parts bike and transplant the motor.
    Seems to me rebuilds are almost never up to the same standards as new and dont last as well anyways.
    Guy

    The bike breaker

  3. #3
    Senior Member aaron's Avatar
    Join Date
    Mar 2002
    Location
    Melrose, MA, USA.
    Posts
    8,067
    Lo compression is never a friend of horse power. You might want to do carbs, valve adjustments, and timing just to see where you stand. If you like the bike, I would recommend doing a top end job. Top ends don't take that long and if done right will make your bike as good if not better than stock.

    Ever seen a nice bike with a missing motor and it pisses you off, thats Guys fault. If everyone keeps taking all the good running motors instead of rebuilding them, there are not going to be many vintage bikes around in 25 years. Well, except for the ones I've rebuilt.

    Aaron


  4. Remove Advertisements
    CafeRacer.net
    Advertisements
     

  5. #4
    Guyman's Avatar
    Join Date
    Oct 2002
    Posts
    127
    Ok, Ok, LOL I guess i have been guilty of some of those things. But just for giggles what can he expect to pay a reputable shop for a proper rebuild on that motor? Im guessing he could buy a good running bike for the cost and still have his bike for parts. Doing it yourself is a different matter though. With my skill all Id end up with is a bunch of ruined parts.
    Guy

    The bike breaker

  6. #5
    Guyman's Avatar
    Join Date
    Oct 2002
    Posts
    127
    Did I say running "parts" bike? I thought so.
    Guy

    The bike breaker

  7. #6
    n/a
    n/a is offline
    n/a's Avatar
    Join Date
    May 2002
    Posts
    127
    Doing it yourself is a different matter though. With my skill all Id end up with is a bunch of ruined parts.

    Yo, I feel your pain man............

    Ask Aaron !!

    #58 USCRA
    250GP Champion 98-99
    Gunstock 2000


    Edited by - 250gpchamp on May 21 2003 8:48:36 PM

  8. #7
    Senior Member aaron's Avatar
    Join Date
    Mar 2002
    Location
    Melrose, MA, USA.
    Posts
    8,067
    Your right Guy, if your skills are anything like John's you should get a new motor. I was just haven some fun with you. John thanks for the call yesterday.

    Aaron
    #133 All of em



Sponsored 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. How to rebuild n Engine
    By StormShadow in forum Technical
    Replies: 10
    Last Post: 12-13-2011, 05:44 PM
  2. CB 750 Engine Rebuild
    By rab123 in forum Vintage Motorcycle Racing
    Replies: 1
    Last Post: 08-28-2011, 05:37 PM
  3. CB 350 Engine Rebuild
    By patritag in forum Technical
    Replies: 1
    Last Post: 05-16-2011, 08:04 PM
  4. CB360t Engine Rebuild
    By Troy360t in forum Project Builds
    Replies: 1
    Last Post: 02-23-2008, 07:02 PM
  5. Engine Rebuild
    By krapfever in forum Technical
    Replies: 28
    Last Post: 07-04-2007, 04:17 PM