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shade tree throttle body sync tool ?
Posted: Tue Apr 09, 2013 10:35 am
by BruceinLA
I may just buy one from beemer boneyard... but has anybody made one?
take a look at this:
http://www.sportbikes.net/forums/genera ... meter.html
Re: shade tree throttle body sync tool ?
Posted: Tue Apr 09, 2013 11:30 am
by riceburner
Manometer is very easy and cheap to make, the main point of discussion is what fluid to put in em!
(I use 3-1 oil in mine and it works fine. It's a little heavier than water, so damps nicely, BUT it does leave a miniscus on the sides of the tube so the accuracy can be impaired to a tiny degree if I take my time over things. Water would do the same, but to a lesser extent)
Re: shade tree throttle body sync tool ?
Posted: Tue Apr 09, 2013 9:56 pm
by BruceinLA
How about a picture of your set up ??
do you find the results reliable?
Re: shade tree throttle body sync tool ?
Posted: Wed Apr 10, 2013 9:01 am
by Buckster
Bruce, if you do a search on this forum for homemade manometer, you will find a whole "how to" from cyclerob. It's very informative!
Re: shade tree throttle body sync tool ?
Posted: Sun Apr 14, 2013 2:40 am
by CycleRob
That 4 cylinder (differential) manometer is the first one I've seen. I never realized that the same differential vacuum principal will work with 4 or any number of cylinders. Looks like I can de-commisson the ancient, hazardous Mercury CarbStyx hanging in the garage.
Using ATF instead of water makes it very very slow to respond to adjustments . . . about 10 seconds. It was really annoying when I first used one. Using water makes it SO sensitive that it cannot be used on a bike with a large initial adjustment error without quickly inhaling the water. There is an interconnected 2 jar 1/2 filled with water system to deal with that too and I'll be posting my low cost version of it soon. Basically, the high vacuum TB empties the "other" 1/2 filled jar, giving you time to make the correct TB adjustment. If you don't make it in time before the jar empties it's still OK, it'll just suck in air bubbling thru the water in the full jar.
Re: shade tree throttle body sync tool ?
Posted: Mon Apr 15, 2013 4:40 am
by riceburner
CycleRob wrote:That 4 cylinder (differential) manometer is the first one I've seen. I never realized that the same differential vacuum principal will work with 4 or any number of cylinders. Looks like I can de-commisson the ancient, hazardous Mercury CarbStyx hanging in the garage.
Using ATF instead of water makes it very very slow to respond to adjustments . . . about 10 seconds. It was really annoying when I first used one. Using water makes it SO sensitive that it cannot be used on a bike with a large initial adjustment error without quickly inhaling the water. There is an interconnected 2 jar 1/2 filled with water system to deal with that too and I'll be posting my low cost version of it soon. Basically, the high vacuum TB empties the "other" 1/2 filled jar, giving you time to make the correct TB adjustment. If you don't make it in time before the jar empties it's still OK, it'll just suck in air bubbling thru the water in the full jar.
I think that was one of the reasons I chose very light oil, just in case!
Re: shade tree throttle body sync tool ?
Posted: Mon Apr 15, 2013 10:32 am
by BruceinLA
Thanks for the word "manometer" that opened up a whole new slew of search results.
I like the one with two glass jars, the youtube video:
http://www.youtube.com/watch?v=2PiQBr20kM8
Re: shade tree throttle body sync tool ?
Posted: Sat Apr 20, 2013 10:15 pm
by bransan
2 words, Twin max. I have the Twin max carburetor balancer and it works perfectly on My 04 r1150r.
Re: shade tree throttle body sync tool ?
Posted: Mon Apr 22, 2013 7:55 pm
by BruceinLA
what should the idle speed be on a fully warmed up engine on my 2004 R1150R?
Re: shade tree throttle body sync tool ?
Posted: Tue Apr 23, 2013 7:40 am
by Buckster
1,100 RPM