Ok, I made one of these manometers instead of the usual ones a lot of the others have posted because there is no risk of sucking fluid into the carbs with the bottle style.
What you need:
-2 glass snapple bottles
-10-11 feet of clear tubing about 1/4 inch od and 3/8 or so ID.
- two rubber stoppers to plug the holes on the snapple bottles.
-and some automatic tranny fluid, or whatever fluid you want to use.
so in end you will prolly end up spending less than $10 for the manometer, 2 bucks for the bottles, 3-4 dollars for the tubing,and a dollar or two for the stoppers. Most people have some type of fluid sitting around the garage.
1. drill two 1/4 inch size holes in each rubber stopper just big enough so you can jam the tubing through, yet still small enough so it is air tight.
2. Cut a piece of tubing about a foot so it can go from the bottom of one bottle and the other end goes into the other bottle all the way to the bottom.
3. Measure and cut the rest of the tubing so both sides are equal and place one of the now 2 tubes into one of the rubber stoppers just so you can see the tubing through the rubber, but no further into the bottle, do the same with the other tube to the other bottle.
4. Fill each bottle with a couple inches of fluid and put the rubber stoppers back in the bottles and make sure you get the stoppers in far enough so they don't pop back out.
5. After the bike is warmed up, shut it off and hook up the two long tubes one to each vacuum port on the intake boots, then start up the bike.
6. The fluid IF SYNCED CORRECTLY will stay even in each bottle, but if the carbs are out of sync one bottle will start sucking the fluid from the other. If this is the case then you need to adjust the screw that adjusts when the butterfly valves open while the manometer is hooked up. As you adjust you will see the bottles evening out and once they are even stop adjusting and watch for a minute or two to make sure the fluid has stopped moving and stays equal and then your carbs are SYNCED off of the BOTTLE!!!!
See picture if you get confused, it's pretty easy to figure out. Let me know if you want more pics of the manometer.
