Crash course for jetting

[gstwizzle]

Ok so I have searched around a little through the past threads trying to get an idea on what to do about jets for my bike.  I will be running the K and N lunch box, for the exaust will be pretty much the stock pipe with a shorty (glass pack style) muffler on the end.  I have had it running with stock jets and it back fires and struggles to rev freely.  I'll post a picture of my set up when I get out of work if that will help. Any help would be appreciated!! 

[bosozoku]

Ok so I have searched around a little through the past threads trying to get an idea on what to do about jets for my bike.  I will be running the K and N lunch box, for the exaust will be pretty much the stock pipe with a shorty (glass pack style) muffler on the end.  I have had it running with stock jets and it back fires and struggles to rev freely.  I'll post a picture of my set up when I get out of work if that will help. Any help would be appreciated!! 

Assuming that this is a pre-2000 bike:

Try #150 mains, 2 shims under the needles, #40 pilots, 2.5 turns out on the screws.  If it runs rich, reduce main jet size by steps of 5 (or 2.5) until you get to #140.  You can do this w/o removing the carbs if you have Allen screws replacing the float bowl screws.  Jets are cheap.

-b.

[gstwizzle]

If the bike is to rich and I have to step down the mains, should I keep the pilots the #40 pilots and 2 shims in the needle the same?

[Zack]

I have a K&N box and a aftermarket muffler, but stock headers. I'm running 150/40 3 turns out on mixture. My jetting isn't perfect, but its pretty darn close.

[gstwizzle]

when you say not perfect which end does it head toward....being lean or rich..... I ordered 140 145 150 main jets and 40 pilots....

[gstwizzle]

Here is a picture of what the set up is.... I'll get some better pictures later this weekend .... because I am currently painting the pipe.  Eventually when I get some freetime I will make new pipes similar to this only duals!!

[gstwizzle]

so today I went to pick up the jets i ordered for my bike.  I called ahead to be sure that everything came in.  They confirmed that the complete order was there.  However when I got there they apparently had forgotten to order the #40 pilot jets.... ARRRRRGGGG!!!!!
So this is the last step for my bike to get done so of course I was super pissed.  So there not going to be here till tuesday, when I have to work.  So I called another shop and they had 40's in stock.  When I got to the other shop, the jets they had, had holes in the sides.  The stock jets are solid with no holes.  So my question is, will the pilots with the holes in the sides work of does it have to be the same as stock???

[Bluebellylint]

Where can I buy jets online (150 main, 40 pilot). The local dealer wants $25 each 
I see some on chaparral for the 150 main but I'm not sure what type the pilots are

[Bluebellylint]

I searched some more and found out the non-bleeding type are hard to find, but you can use the bleeding type pilots.
Chaparral #40 pilots

[gstwizzle]

Yeah.... When I finally picked up mine they were the bleeder style.... So I talked to the shops mechanic and he said they would be fine!