Jump to content

friends bike backfiring then he decelerates?


Recommended Posts

ok and one more tiny question.

ive never fooled around with a pilot jet before, but ive done several main jets. the main jet has a number marked into it to tell you what size it is... how do I tell the size of my pilot jet? is there a number carved into it like the main jet?

thanks

Link to comment
Share on other sites

Backfiring? Really? All the way back into the air-filter?

Ooooh, you mean Misfiring or popping.

Yeah, that's normal on a YZ. Too much = lean mix.

1) Turn the fuel-screw down (in) a 1/4 to 1/2 turn (which is actually a air screw).

2) if that doesn't do it, go up one in the pilot.

3) last but not least, move the needle clip down one position.

  • Like 1
Link to comment
Share on other sites

Backfiring? Really? All the way back into the air-filter?

Ooooh, you mean Misfiring or popping.

Yeah, that's normal on a YZ. Too much = lean mix.

1) Turn the fuel-screw down (in) a 1/4 to 1/2 turn (which is actually a air screw).

2) if that doesn't do it, go up one in the pilot.

3) last but not least, move the needle clip down one position.

yes my bad, its popping.

he said he turned the fuel screw in 1/4 turn like I told him (like TT told me) and it fixed the problem within 5 minutes. no wonder everyone comes to me for help with their bikes!

thanks for the help, + gas for you too!

Link to comment
Share on other sites

Create an account or sign in to comment

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

Reply with:

×
×
  • Create New...