Triumphrat

ttbonnie

how do you sync w/ out tach-- setting rpms any recs??
thanks tt..

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Ai removed , ARK, 19T counter, TOR's, 140 main 42 pilots 2.5 turns out- and a cleaned up body

heres she is
http://www.triumphrat.net/memberalbu...php?photo=1448

KingOfFleece

My question also! Will be interested in the replys as I'm ready to sync them instead of the dealer.

ttbonnie

think i might need to install a mini tach 75-80 $ any one know the ratio for the speedo??

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Ai removed , ARK, 19T counter, TOR's, 140 main 42 pilots 2.5 turns out- and a cleaned up body

heres she is
http://www.triumphrat.net/memberalbu...php?photo=1448

jedrake73

I have a tach, but I don't really find it completely necessary when doing a carb synch. Just warm the bike up to normal operating temp and then turn the idle speed screw to keep slowing the idle until it sounds like it's going as slow as it possibly can without dying - so it sounds like a tractor (this will be about 500 rpm). Then see if the carbs are synched up. Once you get them adjusted, turn the scew in one more turn to raise the idle (should be about 1500 rpm at this point) and see if they are still synched up. Adjust and turn the scew another half turn and repeat. Reset your idle where you like it and you're done.

stu

You don't use the tach, you use a vacuum gauge or manometer attached to the vacuum ports on the carbs. You can buy a couple of vacuum gauges for about $25 and some plastic tubing.Mount them on a piece of wood, and clamp the tubing to dampen down the pulses, then set idle around 2000RPM and adjust synch screw until both readings are the same. Reset idle, then connect the two vacuum ports with a piece of the tubing and you should stay in synch for ever, or until you adjust the valves.I can e-mail you a PM with pics if you want.
If you want a nice little tach thats easy to instal, get a harley minitach from pwersports outlet store for $50, item # 300022590792.

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Stu


TORs, NARK, thruxton needles, 140mains.40 pilots 2.75 turns out, procom igniter, 17T

badrufus

I've read instructions for synching the carbs that call for upping the idle to 1200 rpm, synching, then bringing the idle back down to 1000. But I have always just done it with a fully warmed up bike at normal idle. Like stu said, you depend on a good manometer (either mercury carb sticks or something like the CarbTune, which I use), and the tach is quite secondary.

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2005 T100

RonD

the taco is not realy needed in carb synching as the guys have said ,the main thing is vacuum guages, and i usualy check adjust right through the rev range, all u need for that is your ears, if u know what your doing when tuning your bike your listening to your engine, reading your guages and doing proper plug chops ,i peronaly dont use oversized jets a full set of jet drills going up one size at a time (this method is not for everyone) ,when u know what your doing combined with all you have read on the posts here u can acheive a good result . and on the older bikes high rpm pilot settings can be usefull ect..

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Regards Ron
Hurricane pictured(Harry)

ttbonnie

thanks for all the input- the question was derived from every thing i searched in the site as far as :example running it up to 1500 rpm-thanks jedrake for the tips -

__________________
Ai removed , ARK, 19T counter, TOR's, 140 main 42 pilots 2.5 turns out- and a cleaned up body

heres she is
http://www.triumphrat.net/memberalbu...php?photo=1448

fugitive

"harley minitach from pwersports outlet store' "

Who are they? I tried to Google them with no result, thabkjs.

merlin

Ya do it by listening...