ann0yed
XS650 Addict
This is the best PILOT jetting solution I've come across for my '79 Special with:
XS Performance Stainless Steel Headpipes - 1.75" (45mm.) OD
XS Performance Reverse Cone Megaphone Mufflers
XS Performance torque inserts
XS Performance pod filters
The advice:
"These carbs are *really* easy to run rich. I would stick with stock jetting, to be completely honest. *maybe* a step up on the pilot, and *maybe* two on the main, for totally open intake/pipes. But i'd have a hard time justifying that for most people who run open pipes, since they rarely sit at 6k+." -Sundie
I just spend a couple months trying to find the right sized PILOT JET. I read SO MANY jetting posts, many of which suggested I go up, one, two, three sizes and higher. I recall reading somewhere someone saying they had a 45 pilot (and not even for open pipes AND pod filters - just one of the two) and I was like "Dang, how could that guy run a pilot so huge?!?!", well, IT CAN HAPPEN TO YOU TOO! Naturally I kept going up and up and eventually got to a size 45 and that was the breaking point for me ; I had a NIGHTMARE ride to work and back today through a sizeable chunk of Manhattan, AWFUL.
Following the advice I'm passing along here I decided to go back a few steps to my 30 pilot (one step up from stock) and when I did it (without taking the carbs off the bike, which I've never done before and which I feel like a JACKASS about now) and with a turn of the mixture screws IT RUNS GREAT NOW! Its so easy to be lured into "bigger equals better" and it isn't always the case.
Oh and in case anyone is wondering, I'm two sizes up from stock on the MAIN and that seems to work for me. Is it right? I don't know, I might go down a size there too eventually. My main concern was the pilot. DONE.
I hope this helps someone out there! It MUST!
-jonathan
XS Performance Stainless Steel Headpipes - 1.75" (45mm.) OD
XS Performance Reverse Cone Megaphone Mufflers
XS Performance torque inserts
XS Performance pod filters
The advice:
"These carbs are *really* easy to run rich. I would stick with stock jetting, to be completely honest. *maybe* a step up on the pilot, and *maybe* two on the main, for totally open intake/pipes. But i'd have a hard time justifying that for most people who run open pipes, since they rarely sit at 6k+." -Sundie
I just spend a couple months trying to find the right sized PILOT JET. I read SO MANY jetting posts, many of which suggested I go up, one, two, three sizes and higher. I recall reading somewhere someone saying they had a 45 pilot (and not even for open pipes AND pod filters - just one of the two) and I was like "Dang, how could that guy run a pilot so huge?!?!", well, IT CAN HAPPEN TO YOU TOO! Naturally I kept going up and up and eventually got to a size 45 and that was the breaking point for me ; I had a NIGHTMARE ride to work and back today through a sizeable chunk of Manhattan, AWFUL.
Following the advice I'm passing along here I decided to go back a few steps to my 30 pilot (one step up from stock) and when I did it (without taking the carbs off the bike, which I've never done before and which I feel like a JACKASS about now) and with a turn of the mixture screws IT RUNS GREAT NOW! Its so easy to be lured into "bigger equals better" and it isn't always the case.
Oh and in case anyone is wondering, I'm two sizes up from stock on the MAIN and that seems to work for me. Is it right? I don't know, I might go down a size there too eventually. My main concern was the pilot. DONE.
I hope this helps someone out there! It MUST!
-jonathan
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