A forum for owners of Yamaha TTR250 trail and enduro bikes!

Members Login
Username 
 
Password 
    Remember Me  
The TTR250 FAQ web pages -> TTR250 -> Repairs and maintenance -> Compression test results - not sure if they are okay?
Post Info TOPIC: Compression test results - not sure if they are okay?
robject33


Member

Status: Offline
Posts: 10
Date:
Compression test results - not sure if they are okay?
Permalink  
 

I just did a compression test on my bike for the first time.

Here's a video of the first test: https://youtu.be/hdntwR44xtA

And here's another video of a second test after putting some engine oil in the cylinder: https://youtu.be/yg6BeBRXtZA

The compression builds a lot faster after adding the oil and the final reading is much higher - does this mean I need to change the piston / rings?



-- Edited by robject33 on Saturday 20th of April 2024 09:06:18 PM

__________________

Reading, UK | '93 Open Enduro TTR 250
JOHNYBOY


Super Guru

Status: Offline
Posts: 1070
Date:
Permalink  
 

indicate piston rings new either need bedding in or worn rings or bore

__________________
robject33


Member

Status: Offline
Posts: 10
Date:
Permalink  
 

Thanks, would you recommend not riding it until they are done or is it not that urgent?



__________________

Reading, UK | '93 Open Enduro TTR 250
JOHNYBOY


Super Guru

Status: Offline
Posts: 1070
Date:
Permalink  
 

keep eye on engine oil check do not let it run out of oil but enjoy riding it until you can afford repair if it keeps smoking burning oil keep topping it up & enjoy

__________________
Page 1 of 1  sorted by
 
Quick Reply

Please log in to post quick replies.
The TTR250 FAQ web pages -> TTR250 -> Repairs and maintenance -> Compression test results - not sure if they are okay?


Create your own FREE Forum
Report Abuse 		Powered by ActiveBoard