I have the $25.00 tool. I did have to dremel about a half an inch off the end in order to get it to fit but once I did I was able to maneuver it over the adjuster openings. I haven't hooked up the carbtune but it looks as though I am going to be able to do it. I'm gonna go ahead and rate it a 4 bloody knuckles project considering I already have one trying to get it in there.
Can you reach them with a regular screwdriver with the airbox off?
I bought a motorcycle because my wife said that I couldn't! Now I have two and she still says I can't have another one! To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. Sounds like a challenge to me!
Now I have four! To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
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Here's the left throttle body's vacuum bypass adjustment screw at the end of red pointer, as seen from fuel tank's rear mount. I covered up the TB inlets with my original air filter's foam element, wrapping it on both with electrical tape to perform the adjustment:
So the default right TB sdjustment screw is closed, just adjust the left one? Don't really care what the level is as long as they are both the same (balance)?
I remember someone at other forums just use a coke 2 liter plastic bottle and some aquarium's tube and make himself a throttle sync gauge...
Yes to both questions.
You should be able to make your own manometer. It does have to be taller to avoid sucking up the lighter than mercury fluid used, and you need to add a restriction near both ends of 1/4" tubing to dampen vacuum pulses. You can use carburator main jets or stick in a length of plastic pen refill wrapped in some electical tape for a snug fit in the tubing. Check vacuum balance at 1300 rpm idle on warmed up engine. Close left TB vacuum bypass adjustment screw if left vacuum is low (lower fluid level in tubing), open it if left vacuum is higher. Make small adjustments and observe fluid levels which will dance up and down a bit in manometer. Set both levels as equally as possible while making sure idle is still at 1300 rpm.
You'll need to add a length of smaller 1/8" ID rubber vacuum hose to each end of your homemade manometer's 1/4" ID clear vinyl tubing to hook it up to TB vacuum fittings... After you're done, you can couple both fittings with 6" of the 1/8" hose if you'd like to try the 'vacuum hose mod', and you could also remove your subthrottle plates (without dropping screws) while you're in there.