Bench sync'ing carbs

[Steve]

Now if you want to go into great detail, then discussing methods to get your final sync would seem more productive.

Don't worry, that project is in the works, too.

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[Old guy]

Video of rocket surgery

http://youtu.be/wfa9PJIdBR0

 

[Nessism]

Come on guys... Can't you see that it was meant as light humor?

My point was simply that a bench sync is just a short term thing to get the bike started. Weather you use a pin, a flow bench or your eyes is irrelevant. All you're really trying to achieve is a "close enough" sync so you can do the proper sync for your engine's condition using a proper tool. It's not rocket science at that level. I use a thin feeler gauge and that seems to work for me.

Now if you want to go into great detail, then discussing methods to get your final sync would seem more productive. That's where things get more critical. Lots of potential science there to entertain the mind as well.

I agree. I don't even bother to bench sync most of the time. Go straight to vacuum sync.

 

[posplayr]

Video of rocket surgery

http://youtu.be/wfa9PJIdBR0

Thanks for the video. It looks pretty easy once you get everything setup. It is also probably much easier to set the throttle settings with the crabs off the bike.

Please report back how much adjustment is required after install.

 

[Steve]

Video of rocket surgery

http://youtu.be/wfa9PJIdBR0

I know the term has always been "bench" sync. :-k

THAT took up half of the garage.

(and I had to turn my computer sideways to see it)

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[tkent02]

If it took longer that the minute or two it takes to eyeball them, it's a waste of time and effort.

 

[posplayr]

If it took longer that the minute or two it takes to eyeball them, it's a waste of time and effort.

Like he said rocket science.

 

[GSX1000E]

I LOVE the thinking outside of the box to home brew a system to mimic a running engine with so few household items. Genius!

 

[Guest]

Probably takes longer to plug in the shop vac then it does to do a bench sync.

I appreciate the ingenuity on some level but aren't you just going to vac sync once they are on the bike anyway? Your solving a problem where there isn't one

 

[Steve]

I appreciate the ingenuity on some level but aren't you just going to vac sync once they are on the bike anyway?

The vacuum sync should be good until you have to adjust some valves.

Changing valve clearances will change how much that cylinder can breathe, which will change the amount of vacuum it produces, because it still has the same restriction (the throttle blade).

Yep, you will need to do it more than once, unless you sell the bike, but you will need to do a sync on the next bike. :-\\\

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[Old guy]

Here was another "rocket surgery" experiment. I did a few more I didn't film. I understand the carbs a lot more now, which is kinda the reason for fiddling around in the garage, like in the days before Google and the interwebs made everyone an expert

http://youtu.be/qbDweEOs1xw

 

[Old guy]

THAT took up half of the garage.



.

That was just a corner of the garage

 

[Steve]

I barely use a corner of my BENCH.

I have a light table that started life as a wall-mounted dental x-ray viewer. It's about 8 x 16 inches.
The rack of carbs sits on top of it, VERY easy to see my slivers of light.

To each his own, carry on with your apparatus.

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[GSX1000E]

before Google and the interwebs made everyone an expert

You mean like in this thread and on this site? Say it isn't so! LMAO!!!