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
Yamaha MX & Off-Road Dirt Bikes
Help! I blew up two '06 Yamaha YZ125's this past weekend
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="Motorob, post: 1119975, member: 73592"] Hello everyone. My son and I managed to blow up both his '06 YZ125's this past weekend and I would like to get some input on what you all think may be the cause. I think it is a lean jetting problem. Both bikes are stock except for an FMF Fatty pipe & shorty silencer. I use 92-93 octane pump gas mixed with Maxima 927 at 32:1. The carb jetting is stock (410 MJ, 40PJ, stock needle 3rd clip) on both bikes. The air temp was around 55-60 degrees and he was riding on a sand track when both bikes lost compression and quit running. On the first bike I tore down the piston was broken away on the intake side and the ring was collapsed. The cylinder has broken away all around the top of the bore and there is also damage to the head. Any input would be greatly appreciated. Thanks! [/QUOTE]
Verification
Which ocean is California closest to?
Post reply
Forums
Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
Help! I blew up two '06 Yamaha YZ125's this past weekend
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