HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
Pat E

draining fuel?

6 posts in this topic

I'm new to the whole 4-stroke/fuel injection deal and was wondering what is the best way to drain the fuel on my '10 YZ 450 for the winter? I've been using straight VP U4.4 since new but would like to drain it for the winter anyway, although I'm a bit late! Also, any other tips for "winterizing" to make things easier come spring? Thanks!

Share this post


Link to post
Share on other sites

Gotta take the tank off, the pump blocks fuel flow when it's not on.

Pretty simple, remove the two bolts on the side to raise the tank for air filter maint, then remove the two bolts that the tank hinges on.

In your little baggy of stuff that came with the bike are a couple of block off pieces for the hose connector for the fuel pump. You want to keep ALL DIRT OUT of the lines, as the injector is very sensitive to dirt.

There is a fuel filter in the pump mech, but where you disconnect the hose connector from the tank to the injector there is no, so again don't want any dirt in there. Use the two peices to seal off the hoses.

To remove the connector you need to remove the orange cover first, just slide it forward onto the hose and off of the connector, then you can pinch the connector to remove the line and disconnect it from the harness. The manual goes into detail for this.

After you remove the tank, dump it upside down to drain the fuel.

Share this post


Link to post
Share on other sites

Personally I would just use fuel stabilizer as it's alot easier. Dump the recommended amount in and put the cap back on and rock the bike back and forth to mix it up good. Run the bike for a few minutes to get the stabilizer into the lines and injector and then shut if off.

Share this post


Link to post
Share on other sites

This year i took off the air filter and fogged the $hit out of it. I put Sea Foam in the tank and ran that through, then drained the carb and tank. We'll see what happens in spring.

Share this post


Link to post
Share on other sites

i don't think it happens on plastic tanks but keeping the tank full to the brim will stop condensation

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0