Sign in to follow this  
Followers 0
MKP

Starter Jet change ???

5 posts in this topic

New '05 WR450F.

Problems with warm starting.

Did all the free-mods (AIS, Grey Wire, Snorkel, Baffle out, Throttle Stop)

Jetting: pj#48, mj#170, others stock, fuel screw stock.

Still a litle backfire.

Riding conditions: 0-2000 feet, 60-75 F.

- Changing the Starter Jet could solve my problem ?

- Where is the Starter Jet ?

- Can I change the Starter Jet without removing the CARB ?

Thank you in advanced.

Share this post


Link to post
Share on other sites

Starter jet is for cold starting choke feed circuit.

Hot starting is usually set with the pilot and idle.

Try a new iridium spark plug it really makes starting easier. :)

Share this post


Link to post
Share on other sites

Thank you Indy.

Now I know: "Starter Jet nothing to do with warm starting" :)

I´ll try the new spark plug.

Also I´ll try the fuel screw, may be 1/2 more turn out (still have little backfire).

Regards.

Share this post


Link to post
Share on other sites

Texas,

Needle is in the stock position ¿? ('05 WR450F).

Think too complicated for me to change it, is it?

Also, haven´t tried with the fuel screw yet.

What do you think ? :)

Thanks.

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