has anyone ever rejet their carb??

NYSpeed Automotive
1

i bought my bike last year and had put pipe on it anhad it rejetted at the dealer. i just bought a hyper charger and i looking to install it my self im hopeing some one can give me a staight answer. will i have to rejet the bike again?? some peope say yes some say no some say i need an ignition module? i have n idea who to listen to. does anyone have any insight?? any advice would be great

2

yes, your adding more air into the engine.

you have to rejet even if you add an after market air filter.

3

Some bikes are set very rich from the factory. However 90% of bikes do require a rejet. In all honesty with anything like a hypercharger you will more than likely need a rejet. What kind of bike are we dealing with here?

4

what does a hypercharger do exactly, and what is rejetting? id like ta know im curious

5

hypercharger…no offense is kind of pointless, mostly for looks.

Pretty much just sucks a whole mass load of air into the engine.

and rejetting is when a carbed bike, needs to have the proper air-to-fuel ratio, and when you add in more air…you need more fuel obviously. So you have to rejet the bike to give more fuel so the bike will run properly.

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thanks =)

7

its a yamaha vstar 650 and when i talked to a tech he told e that i have rejetedit once for exhaust and that may be enough but it ay just backfire when i decel i find that ard to believe.

8

mechanicamadness have u ever rejeted a car be 4 is it easy??

9

i had to reject my dirtbike n atv everytime. felt a lot smoother running after doing so as well

10

i was told it was easy but honestly im not sure how to pic the rite jets , i already have a kit from when i puton my exhaust

11

i did mine with my dad but i honestly have no idea or remember how to anymore lol

im sure there is enough literature online to tell you how

12

There should be a main jet number and other info on the hypercharger you bought.

but if you never done it before, take your time, its a long process for the beginner. but doable!

13

thats what i heard but i can only find the instructions on how to do it on atvs nothing on yamaha bikes

14

yea i understand there for looks the power gain is very little its mostly for astedics on my bike

15

hey man, its your bike, all the power to you.

but I would take it to bob weavers or hebelers, I don’t think they charge that much.

also, think of any other air/fuel mods your doing and do it all at once, so you only have to jet it once!

Also, throw it on, and see if the bike runs smoothly, I had an ATV, threw on a pipe, and the jetting was still in spec and it didnt need it.

16

yea i had it don at berts and i kickm self thinkingi didnt do the hypercharger then but i didnt but i was thinkin about taeingit back to berts but the service manger told me it was easy to do

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thanks thats gona be helpful

19

carbs lol

20

We are spoiled, Will :tup: