Twinmax synchronizer instruction

[Peter55]

Hello all,

I haven't really ridden my I/S for sometime and I even forgot how to sync the carbs. I have a Twinmax synchronizer but I lost the instructions on how to do it on the Valk. I know there are some instruction on the Tech Board but for a different sync instrument. If you have a PDF file save somewhere I would appreciate if you can share it. TIA

[Patrick]

Sync gauges are sync gauges. Just attach vacuum lines to the vacuum ports and adjust each carburetor to match #3 [ which is the non-adjustable one].

[Bighead]

My question is why haven't you been riding her? We all know Phat gurls love to be ridden

[Chrisj CMA]

Holy Crap!  Do I need to stop riding? I have owned my girl for 12 years and put 135K miles on her and never sync'd the carbs............am I doing it all wrong?

[Patrick]

Holy Crap!  Do I need to stop riding? I have owned my girl for 12 years and put 135K miles on her and never sync'd the carbs............am I doing it all wrong?

Oh My Gosh, your bike is about to self-destruct !  No sync ? Isn't that against some law ?

I'd be willing to bet that it'll still stand up a nickel.

[Peter55]

[Holy Crap!  Do I need to stop riding? I have owned my girl for 12 years and put 135K miles on her and never sync'd the carbs............am I doing it all wrong?
[/quote]

No, but if feels much smoother with the carbs synchronized. And you can certainly hear it on idle.
My I/S has just 30K and although I don't ride it much I like keeping it in top shape. Nice to know I could get up to 130K. ;-)

[John Schmidt]

Generally, if the carbs have been sync'd once in the past, you shouldn't have to touch them again unless they've been worked on.

[Chrisj CMA]

Holy Crap!  Do I need to stop riding? I have owned my girl for 12 years and put 135K miles on her and never sync'd the carbs............am I doing it all wrong?

Oh My Gosh, your bike is about to self-destruct !  No sync ? Isn't that against some law ?

I'd be willing to bet that it'll still stand up a nickel.

You would win that bet Patrick, I do the nickel trick all the time.  Sometimes at the request of people that know about it and want their friends to see it, Always works

[Thunderbolt]

Turn the Twinmax on and zero the meter.  Turn the sensitivity all the way up.  Put the A vacuum line on #3.  Put the B vacuum line on #4.  Crank the bike and watch the needle, if it hovers to the right of zero turn the sync screw on #4 to the left until it hovers over zero.  If it hovers to the left side of zero turn the sync screw on #4 to the right until it hovers over zero.  If you have not desmogged your bike put a golf tee or similar item into the vacuum line that you removed from #3 and move on to the next cylinder.  I usually just do # 2 and #6 while on that side and then go back to the right side and do #1 and then #5.  Take the gold tee out and put all the lines back on.