How to fine-tune your jetting: Difference between revisions
No edit summary |
|||
| Line 31: | Line 31: | ||
Carefully pull the vacuum diaphragm/piston unit out. The rubber diaphragm is the most delicate part of the carb, and is easily damaged. | Carefully pull the vacuum diaphragm/piston unit out. The rubber diaphragm is the most delicate part of the carb, and is easily damaged. | ||
Shake the needle out, raise it with (however many) 2.5 or 3 mm washers. | Shake the needle out, raise it with (however many) [[Washers for carb needles|2.5 or 3 mm washers]]. | ||
Reassemble. | Reassemble. | ||
| Line 37: | Line 37: | ||
Raising the needles can actually be done without removing the carbs from the bike. Pull the tank, without pulling the upper fairing. You'll need a good-condition #2 phillips screwdriver with a shaft about 10" long. A multi-bit screwdriver won't work because the shaft is too thick. Just slide the screwdriver through the brackets to pull the screws out, pop the cover off, pull the springs, and fish out the vacuum pistons. Make your adjustments and reassemble. Make sure to drop the needle straight down, so that it goes into the collar above the emulsion tube; you can easily see if it doesn't. Put the screws and brackets back on, and you're good to go. | Raising the needles can actually be done without removing the carbs from the bike. Pull the tank, without pulling the upper fairing. You'll need a good-condition #2 phillips screwdriver with a shaft about 10" long. A multi-bit screwdriver won't work because the shaft is too thick. Just slide the screwdriver through the brackets to pull the screws out, pop the cover off, pull the springs, and fish out the vacuum pistons. Make your adjustments and reassemble. Make sure to drop the needle straight down, so that it goes into the collar above the emulsion tube; you can easily see if it doesn't. Put the screws and brackets back on, and you're good to go. | ||
The big key to this is to not have sticky bolts... If they are stuck, you'll need to pull the carbs so you can put them in a bench vise and hit them with an impact driver. | The big key to this is to not have sticky bolts... If they are stuck, you'll need to pull the carbs so you can put them in a bench vise and hit them with an impact driver. | ||
====Step 4: [[Removing idle mixture screw plugs|Adjust mixture screws]]==== | ====Step 4: [[Removing idle mixture screw plugs|Adjust mixture screws]]==== | ||