Home
Basic Dirt Bike How-To's - Video
Dirt Bike How-To's - Video
Living The Moto Life - Video
Bike Tests | Shoot-Outs - Video
Forums
What's new
Latest activity
Log-In
Join
What's new
Menu
Log-In
Join
Navigation
Install the app
Install
More options
Close Menu
Forums
Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
YZ 250 Breakdown Please Help
Reply to thread
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
[QUOTE="trial_07, post: 1311076, member: 53593"] Hi, I'm posting for a friend. Here's what happened to his 2007 YZ 250 barely a few minutes after starting the bike today: [IMG]http://i105.photobucket.com/albums/m214/trial_07/IMG_2566.jpg[/IMG] [IMG]http://i105.photobucket.com/albums/m214/trial_07/IMG_2567.jpg[/IMG] The bike always had a detonation problem after installing a complete FMF exhaust and re-jetting. This summer, the tip of the spark plug had fallen loose in the cylinder while running, damaging the piston and cylinder cap. Fortunately, the cylinder showed no sign of harm so he did not replace this part. [U]Specs:[/U] Gas: 2/3 91 octane pump gas + 1/3 VP U2 mixed 32:1 with ELF oil Jetting: 198 main, 45 pilot Plug: BR8EG The piston and rings on this picture had approximately 23 hours. Any thoughts? Thanks! [/QUOTE]
Verification
Which ocean is California closest to?
Post reply
Forums
Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
YZ 250 Breakdown Please Help
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top
Bottom