650Rider, xs650 hosted by XS650.com

What Happened to 650rider.com?

650 Rider went offline for about a month at the beginning of 2010. In order to save the technical information that was here, XS650.com acquired the site and brought it back online as a read-only archive. If you were a member of 650 Rider, you will need to re-register at XS650.com

Search 650Rider.com and XS650.com using Google!

        650Rider Menu
 Community  Information


xs650 > > Motorcycle Systems > > Engine > > first rebuild...


first rebuild...
    Forum Index -> Engine
Author Message
ponyjr
Full Member
Full Member


Joined: Jul 30, 2007
Posts: 32

PostPosted: July 6, 2008, 9:25 pm    Post subject: first rebuild...

ok guys i just bought a complete motor for my xs for $100 bucks..i think i can save the pistons with some new rings...i was wondering how much can i look to spend to do a full rebuild top and bottom?
Back to top
Photo Gallery
kingwj
650Rider Supporter
650Rider Supporter


Joined: Sep 04, 2005
Posts: 801
Location: Delaware

PostPosted: July 6, 2008, 10:20 pm    Post subject: Re: first rebuild...

How much you got to spend? A lot depends on what you are willing or able to do yourself. You looking for stock or horsepower? You going to clean up or replace the bearings? Keeping the carbs? Porting and polishing the head? It all adds up.
_________________
Anyone can make a car stop, it takes a genius to make a car go fast!- Enzo Ferrari

1979 XS650F
1979 XS750SF
1972 Triumph Tiger
Back to top
Photo Gallery
ponyjr
Full Member
Full Member


Joined: Jul 30, 2007
Posts: 32

PostPosted: July 7, 2008, 9:14 am    Post subject: Re: first rebuild...

ive got a good friend that is much better than i at this stuff so he would be helping me. i would only replace the bearings as needed. i know all the oil seals are bad. looking to stay stock on the bore though did find a 707 kit with pistons and rings for like 275 bucks. i have another buddy that would clean up the head. so am i looking at like 200-300 bucks or like 400 up? i really just want to keep it stock bore its in good shape and really only needs rings but i figure i got it out of the bike i mise well go through it.
Back to top
Photo Gallery
xsjohn
Full Member
Full Member


Joined: Jul 30, 2006
Posts: 5857
Location: North Carolina USSA

PostPosted: July 7, 2008, 9:35 am    Post subject: Re: first rebuild...

You can visually inspect the three roller crank bearings but the right side is tricky........the ball bearing on the right can cause vibrations and engine teardown if not totally smooth.......visually inspect it with a magnifying glass to see if there is any pits especially in the inner race.......they grow fast and if rough they will make for a crappy and noisy running engine............and lots of head scratching.........

Clean well with brake cleaner and lightly oil and spin them...

xsjohn
Back to top
Photo Gallery
 
    Forum Index -> Engine All times are GMT - 5 Hours
Page 1 of 1


 
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum


   


Check out the new Honda CB750 Forum at CB750.com! A site dedicated to the great Honda SOHC and DOHC CB750.

Check out the new Yamaha XS400 Forum at XS400.com!

Yamaha xs650

xs650, xs, 650, forum, links, chopper, custom, yamaha, parts, forum, info, information, bb, bulletin board, XS650
650Rider, Free Unrestricted xs650 forum, Personal photo albums, Post images in Forum, News columns, Daily blog, Links, Event calendar, Information for Yamaha XS650



Interactive software released under GNU GPL, Code Credits, Privacy Policy