Hey carb guys, what's this jet????

7 replies to this topic
  • thumper4life

Posted June 18, 2002 - 08:06 AM


I'm making my bike not foul plugs anymore and there is a jet in there that we (me and the local Yamaha dealership) can't seem to figure out what it is. All the descriptions in the manual and microfische call it a "jet" pretty descriptive, eh?

Well anyways, its pretty small and the number on it is 72
Anyone know what jet that is?? :)

  • thumper4life

Posted June 18, 2002 - 08:30 AM


after about 50 minutes of searching this site, i found its a "starter jet"...now if i go by the name, does that mean it throws fuel in it when starting?

  • AK-thumper

Posted June 18, 2002 - 09:29 PM


I believe it is part of the choke circuit.

  • Shawn_Mc

Posted June 18, 2002 - 09:41 PM


A "starter jet" could also be the idle or low speed circuit.

Is the jet in the float bowl or in the back side of the carb near the carb float?

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • thumper4life

Posted June 18, 2002 - 10:05 AM



  • Hick

Posted June 18, 2002 - 10:59 AM


That should be the choke jet.

  • Shawn_Mc

Posted June 18, 2002 - 01:40 PM


I wouldnt think youd need to mess with a choke jet.

You may just need a larger Pilot air jet.

  • thumper4life

Posted June 18, 2002 - 03:58 PM


i just wanted to know what it was

Related Content


Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.