jets and tubes

bikevision · Post by **bikevision** » Wed May 14, 2008 7:28 pm

i need to put new jets in my bike. what i know for sure is its got a k&n filter, and v&h supersport system. i was told when i purched the bike that it was jetted but i dont know what it was jetted to. how do i tell what jets are in it. i would like to just get new jets and tubes. not looking to make more power cause when it was running good it ran like a raped ape. if i can get back what i had id be happy.

burnRuber13 · Post by **burnRuber13** » Wed May 14, 2008 7:40 pm

did u take the carbs off and look at the jets yet?

Rich · Post by **Rich** » Wed May 14, 2008 9:12 pm

The mains will be marked on the lip. Depending on what brand of jets you have the numbers will be different. Stock is 107.5. You will have to take the carbs off and disassemble them to check the emulsion tubes and the mains.

Post by **haunter** » Wed May 14, 2008 9:33 pm

bikevision wrote:i need to put new jets in my bike. what i know for sure is its got a k&n filter, and v&h supersport system. i was told when i purched the bike that it was jetted but i dont know what it was jetted to. how do i tell what jets are in it. i would like to just get new jets and tubes. not looking to make more power cause when it was running good it ran like a raped ape. if i can get back what i had id be happy.

whats up dude glad to see you made it here!

bikevision · Post by **bikevision** » Wed May 14, 2008 10:06 pm

hey haunter hows it going.

ive had the carbs out before. i couldnt tell if the tubes were worn just by looking but i can see wear marks on the jets themselves. ive got them as lean as they can go and im still running really rich. the plugs foul out really quick. if its not the carbs them im going to have to replace cams. the bike only has about 7500 miles on it. i got it with 3200 last year. it ran good at first, i was changing plugs about every 500 miles. it just got worse and worse. running an ngk7 plug it would probally foul before 100 miles. that is if i could keep it running. its ok above 3000rpm but you get below that and it spits and sputters.

Post by **ragedigital** » Wed May 14, 2008 10:36 pm

If you're on the last clip and still running rich, the tubes need to be replaced.

Here is a photo of the main jet, mine is a DynoJet and says 126 on it:

burnRuber13 · Post by **burnRuber13** » Thu May 15, 2008 7:10 am

yo bikevision what kind of tail do u have on your bike

bikevision · Post by **bikevision** » Thu May 15, 2008 1:51 pm

burnRuber13 wrote:yo bikevision what kind of tail do u have on your bike

its an o5 r1 tail. the actual tail not the airtech kit. i had a thread on the old board on the modification to the undertail. guess thats gone now. ive still got pics of it if your thinking about doing it.

yamaha_george · Post by **yamaha_george** » Fri May 16, 2008 8:15 am

bikevision wrote:
burnRuber13 wrote:yo bikevision what kind of tail do u have on your bike
its an o5 r1 tail. the actual tail not the airtech kit. i had a thread on the old board on the modification to the undertail. guess thats gone now. ive still got pics of it if your thinking about doing it.

BV,
If you post me the pics and a brief write up I can publish it on my FZR section and then make it available for this group when it has settled in ?

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