Register Community Calendar Today's Posts Search

Go Back   GZ 250 Forums > GZ250-Specific > General Maintenance

Reply
 
Thread Tools Display Modes
Old 08-12-2015, 04:59 PM   #1
spldart
Senior Member
 
spldart's Avatar
 
Join Date: May 2015
Location: Stafford, Texas
Posts: 604
Question I'm shopping for a new motor.

Mine is making to much bad noise nowadays and I need the bike for commuting
so... I got a few hundred $ set aside and made a request to a net of 65 salvage
yards for a gz250 bare engine that can make an ok compression number.

What years can I safely swap into a 2000 model?



Login or Register to Remove Ads
spldart is offline  
Reply With Quote
Old 08-12-2015, 05:03 PM   #2
blaine
Senior Member
 
blaine's Avatar
 
Join Date: Feb 2010
Location: P.E.I. Canada
Posts: 3,784
All models of G.Z. are same motor.
__________________
If at first you do succeed, try not to look surprised.


blaine is offline  
Reply With Quote
Old 08-12-2015, 09:58 PM   #3
spldart
Senior Member
 
spldart's Avatar
 
Join Date: May 2015
Location: Stafford, Texas
Posts: 604
Oh wow! Oki doki
Now to wait for a response to my shopping email



Login or Register to Remove Ads
spldart is offline  
Reply With Quote
Old 10-07-2015, 12:02 PM   #4
mtbdrew
Junior Member
 
Join Date: Oct 2015
Posts: 11
Quote:
Originally Posted by spldart View Post
Mine is making to much bad noise nowadays and I need the bike for commuting
so... I got a few hundred $ set aside and made a request to a net of 65 salvage
yards for a gz250 bare engine that can make an ok compression number.

What years can I safely swap into a 2000 model?

So what noise is being made? Where do you think it is coming from?
mtbdrew is offline  
Reply With Quote
Old 10-08-2015, 11:19 PM   #5
spldart
Senior Member
 
spldart's Avatar
 
Join Date: May 2015
Location: Stafford, Texas
Posts: 604
Piston slap.
Valve train noise even though lash is set right.
Nasty hit and miss clunks from case during gear engagement. Esp first at a stop.
Occasional lockups of shifting mechanism requiring numerous clutch engagements to sort.
Lots of rattling at startup till oil pressure builds. (always do a idle warm up)
Slow progressive loss of compression over time. (using 2 separate gauges to be sure)

I still have enough compression left to get it started most of the time first time but well below 100 psi now.
I'm not getting oil by the rings yet but enough blow by that I'm getting lots of oil in the airbox.
etc etc etc.
I've been asking to much of a small engine for a while now.
Saving for a bigger bike for this nasty commute.



Login or Register to Remove Ads
spldart is offline  
Reply With Quote
Old 10-09-2015, 12:16 AM   #6
Water Warrior 2
Senior Member
 
Join Date: Dec 2006
Location: Squamish B.C Canada
Posts: 11,409
Quote:
Originally Posted by spldart View Post
Piston slap.
Valve train noise even though lash is set right.
Nasty hit and miss clunks from case during gear engagement. Esp first at a stop.
Occasional lockups of shifting mechanism requiring numerous clutch engagements to sort.
Lots of rattling at startup till oil pressure builds. (always do a idle warm up)
Slow progressive loss of compression over time. (using 2 separate gauges to be sure)

I still have enough compression left to get it started most of the time first time but well below 100 psi now.
I'm not getting oil by the rings yet but enough blow by that I'm getting lots of oil in the airbox.
etc etc etc.
I've been asking to much of a small engine for a while now.
Saving for a bigger bike for this nasty commute.
You can't say the bike hasn't given it's heart and soul to you. Luckily you can get a transplant.
Water Warrior 2 is offline  
Reply With Quote
Old 10-09-2015, 12:46 AM   #7
spldart
Senior Member
 
spldart's Avatar
 
Join Date: May 2015
Location: Stafford, Texas
Posts: 604
Quote:
Originally Posted by Water Warrior 2 View Post
You can't say the bike hasn't given it's heart and soul to you. Luckily you can get a transplant.
But but... I hadn't gotten tired of it yet
spldart is offline  
Reply With Quote
Old 10-09-2015, 06:45 PM   #8
Water Warrior 2
Senior Member
 
Join Date: Dec 2006
Location: Squamish B.C Canada
Posts: 11,409
Quote:
Originally Posted by spldart View Post
But but... I hadn't gotten tired of it yet
Communication breakdown here. You are shopping for a transplant in the bike's engine location.
Water Warrior 2 is offline  
Reply With Quote
Old 10-09-2015, 08:14 PM   #9
spldart
Senior Member
 
spldart's Avatar
 
Join Date: May 2015
Location: Stafford, Texas
Posts: 604
Thumbs Up

Quote:
Originally Posted by Water Warrior 2 View Post
Communication breakdown here. You are shopping for a transplant in the bike's engine location.
I'm definitely gonna keep this 'little bike that could' but plans may have changed.
I hope to have enough saved before it expires to buy something with some more
mass to it.
A liter plus v-twin perhaps.


Then I'll go back to rebuild the pipsqueak.
spldart is offline  
Reply With Quote
Old 10-10-2015, 06:57 PM   #10
blaine
Senior Member
 
blaine's Avatar
 
Join Date: Feb 2010
Location: P.E.I. Canada
Posts: 3,784
V-Star 1100...Well balanced & a ton of aftermarket parts.
Attached Images
File Type: jpg 10985404_955487361149842_9113565192101888709_n.jpg (47.6 KB, 9 views)
__________________
If at first you do succeed, try not to look surprised.


blaine is offline  
Reply With Quote
Reply




Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 04:04 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.