Not sure this is where to post this, but just wanted to thank "Lancer" for the new VM 36 carb with U.F.O. & Dial-A-Jet and highly recommend the U.F.O. & D.A.J. combo for extreme altitude changes.  Last weekend I took the bike from sea level to over 10,000' elevation.  Stopped once to adjust the D.A.J., took less than 5 minutes, bike ran awesome all the way to the top.

The pic is of Haleakala Hwy holds the world record for climbing to the highest elevation (over 10,000') in the shortest distance of 38 miles. Lots of twisties!  Thanks Lancer!

Quote:

I still waiting for the bridge to be built.  

Would anyone please explain how it works?

I have pictured of an old phone dialer bolted to the handlebars...

No, really, I need to understand if th Dial-a-Jet is operable while ON the bike or if I have to stop and tune it by the roadside...
Also, if it works on any CV or flat slide carb or what.
I might decide to get one for the Savage (Mikuni BST40) or perhaps one for the Dyna as well
(which currently runs on the stock Keihin 36 but has a Mikuni flat slide 42 lurking... heheheh...)

Else, I was considering bar-mounted choke levers in order to adjust the carburation for altitude.



Imagine you live at sea level and plan a long trip somewhere up high:
the trick would be to adjust carburation for... 5000ft. and gradually pull the choke maybe 1/16th inch as you go back down to sea level.

All you need is to set reference notches so you have "0 sea level, 2000ft., 4000ft., 6000ft reference notches, and you relieve the choke as you climb.

I saw this on a Swiss-registered Guzzi waaay back in 1975-6 or thereabouts, the guy was riding with the choke half.pulled and explained the trick to me.

Genius !!! Who needs fuel injection ?  

http://www.classicbikepartscheshire.com/control-levers-spares-c122/choke-air-...

(Now... imagine you could also advance/retard ignition for air temperature/altitude/fuel quality... that's what the second lever is for !   )

I'm having difficulty understanding how this could work .   I looked at the units on the link and my first guess is the device adds air to the fuel bowl .  
A needle valve closing off some of the jet would do , if ya started with a oversize jet ...
Am I the only one ?

Thanks Michael ,

So the vacuum line is between the carb. and intake manifold ?   Open the throttle and the vacuum drops letting fuel serge back into the carb , raising the float/fuel level -(enriching mixture).  Close the throttle raising vacuum to reload the line ?

You remember how the older Brigg/Stratton engines use a bottom mounted needle/jet to physically adjust the fuel opening going into the bottom of the main jet channel.    

So does the Dial-a-jet , raise and lower the fuel level in the bowl ?   I've experimented with float level and know low fuel level = leaning mixture.

How could it adjust the fuel level with vacuum ?  
The theory of another way ?


 

DAJ works great for a midrange punch but if your gonna spend the money just bite the bullet , open your wallet , just get the Intelajet you will love it!
I mounted my control near my left grip. Once the bike is warmed up , I do a hot run do my adjustment on the fly turn around and get back into it do another hot run , no stopping and getting off to adjust . But then again I enjoy chasing that last bit of H/P , I have a box of different air filters and plastic pipes ,silicone elbows,hose clamps , think I changed my intake ten times now I'm down to one filter just haven't settled on a long or a short runner between carb and filter. Have pissed off a lot of Harley owners , light to light it's Fast , but once carb is dialed in I will change the gearing and give it some longer legs.

Every carb will react differently, when the daj senses increased vaccuum & engine load it will deliver fuel mine picks up just past 1/4 throttle