ghetto manometer!

[rustybronco]

So how does it work? It is not clear what you did to reduce the needle bounce.
Posplayr

Who is your question is directed to?

***edit*** sorry didn't see rusty at the top.
the valve(s) when partially open, act as a restrictor.

http://www.thegsresources.com/_forum/showpost.php?p=496967&postcount=3

[seuadr]

wow another michigander! i'm gonna be in port huron memorial day weekend visting the feast of st. clair in the park there!

[rustybronco]

Right up Gratiot for me, 7-8 miles.
Riding the bike there?

[seuadr]

hopefully.. been having issues with it, only thing i have not done yet is check/shim the valves which i will be doing this weekend.. if that doesn't fix it, i'm at a complete loss for what to do

[rustybronco]

hopefully.. been having issues with it, only thing i have not done yet is check/shim the valves which i will be doing this weekend.. if that doesn't fix it, i'm at a complete loss for what to do

got a few shims at the house.
what issues?

[seuadr]

http://www.thegsresources.com/_forum/showthread.php?t=124580

is the current thread, but in a nutshell, 1 and 2 are not firing properly, they do eventually get warm, but initially, the bike is running on just 3/4. i've already checked and swapped coils, gone through the carbs twice, resynced them twice, and ajusted the idle.it goes from running a little lean on 1 and 2 to fouling them with gas. someone suggested ajusting the timing.. but i have no idea how to do that. after some suggestions and reading, i think possibly my valves need ajusting.. gonna take a look at them this weekend, as right now i don't have the bike where i live ( no garage :cries

[rustybronco]

http://www.thegsresources.com/_forum/showpost.php?p=818781&postcount=15

[kcorbin]

Here's another cheap syncher: http://faq.ninja250.org/index.php/Is...b_sync_tool%3F

The advantage of this design is that the sucking of sync fluid into the engine is *impossible* and the pulsing is greatly buffered.

Since some of you have stated that being able to sync all 4 carbs at one time is most ideal, I'm trying to think about how to build a 4 bottle version. I'll have to ruminate on that one for a while. Any of the big brains here have some input?

[Skateguy50]

So I read through all 6 pages of this and came to the conclusion the last one posted will probably work best.

Im gonna make a version of that for 4 carbs at once, and be sure to post lots of pics of it when I do. Probably this week as my new jets and gaskets should be here any day now.

[duaneage]

if you had 4 cheap vacuum gauges, couldnt you just hook one up to each carb and do the synch that way???

I made one 20 years ago that way. I tweaked each gauge to get the same reading when put on my car one at a time and then made a small mount to hold them. The actual amount of vacuum is not important, just that they respond equally and evenly.

I paid 40 dollars for my motionpro mercury stick gauge, worked for me.