Yamaha Blaster 2007 jetting Questions

[xSadSufferx]

Hi guys, uhmm i really new into this forum and im also new about riding ATV's, but well ive been checking your site for a while and it seems to be really help full...

Getting into the point.... i have a brand new 2007 blaster and im thinking on doing some mods on it, first the exhaust, between a factory 7 or a toomey and well k&N air filter.

Ive been reading here that most likely for every mod you will do on your atv it will need to be jet it, so im wondering if you guys would help me to select the right jetting for my quad, if your are asking for the weather is around 18-33 C .

[zillaguy89]

You are right with the re-jetting statement, more times than not, jetting changes will have to be made. Even big temperature jumps and altitude changes can affect jetting. 2-cycle engines are very finicky with thier air/fuel mixture. If you get the toomey pipe, they have very good jetting guidelines that come in the instructions, also i've heard that they're customer service is top-notch. Personally I'm not good at givingjetting number out off the top of my head, but there are MANY blaster owners, from mild to wild on this site, and i'm sure you'll have tons of info here shortly. Welcome to E2S!

[xSadSufferx]

Thanks for the welcome..this seems to be a great forum and believe me i want to go deep with this ATV experience.. and yes i saw the manual for toomey nice pipe by the way... but what about the factory 7 do u know something about them???...

ahahah and well i live in costa rica that might help too for the jetting!!!

[blaster&250r guy]

UM i have a blaster and the toomey B1 gives tons of power increases so i would go with it

[blaster&250r guy]

also the jetting recommendations should come with the toomey pipe