Motoman's Correlation: Carb Sync. Vs. RPM's

[motoman]

Here is the bike last night with a bad sync:

https://youtu.be/_sLLVN3Q0BA

75mph @ 5k.

Good sync., it reads 80mph @ 5k.

Just more port velocity needed to compensate for outa' sync carbs........and reduces fighting against mother nature, kinda like a really heavy headwind.

[Bonz]

IanD, we love you Bro!

[trbig]

Smokin' the rear tire at 80 is a good one! Yes, that would cause rpm variation, LOL! Otherwise, something besides a tire is being smoked around here...

.. or some good medication talking. Apparently in the little diagram of gears posted, depending on how "efficiently" you crank the "A" gear depends on how fast the "C" gear spins? lol.. All those interlocked teeth mean nothing.

[Bonz]

Smokin' the rear tire at 80 is a good one! Yes, that would cause rpm variation, LOL! Otherwise, something besides a tire is being smoked around here...

[motoman]

If ya' get real sneaky, end of May through Sept. makes for great riding weather in the high mountains out this way.

[motoman]

Aaahhhh....
Just like old times.
Glad things are getting back to normal again.

Good to have ya back, Brant!

Good times............

Thamk ya' Bo!. Upright,hobbleing around and feeling fairly arrogant and obnoxious again. Should be able to throw a leg over the Venturer here soon next month.

[Bikes]

Could be smokin the back tire at 80.........well, maybe not........

[motoman]

OOpps.........got that confused with space cadet.

[motoman]

Guys, quit it!

IT IS NOT PHSICALLY POSSIBLE FOR RPM AT THE SAME MPH IN A FIXED GEAR SYSTEM (locked in 5th gear) TO BE DIFFERENT BASED ON CARB TUNE OR OTHERWISE. CANNOT HAPPEN!

Are we THAT challenged on this forum as experts on this bike to not understand physics?

Much more likely the air temp was lower or higher and the front tire circumference changed from air pressure variation.

Actually, since it is NOT possible for it to be the state of tune to cause this , it HAS to be the tire circumference or erroneous tach.

Carry on!

Now, THERE'S some space continuum for ya,

[Bonz]

Guys, quit it!

IT IS NOT PHSICALLY POSSIBLE FOR RPM AT THE SAME MPH IN A FIXED GEAR SYSTEM (locked in 5th gear) TO BE DIFFERENT BASED ON CARB TUNE OR OTHERWISE. CANNOT HAPPEN!

Are we THAT challenged on this forum as experts on this bike to not understand physics?

Much more likely the air temp was lower or higher and the front tire circumference changed from air pressure variation.

Actually, since it is NOT possible for it to be the state of tune to cause this , it HAS to be the tire circumference or erroneous tach.

Carry on!

[XJOK2PLAY]

Aaahhhh....
Just like old times.
Glad things are getting back to normal again.

Good to have ya back, Brant!

Good times............

[BA80]

The RPMs still won't change travelling through the gears in the drivetrain in relation to wheel speed in any given gear.

Loved the trip out there Brant. Looking forward to doing it again.

Ehhh......snow? I'm from Montana, if snow scares you, you'll spend 6 months hiding. Hell, I've seen snow in July up there.

[motoman]

Yes, a wrinkle in the time space continuum will cause a solid object to turn slower on one end than the other.

Venturi is just another name for worm hole.

There's that time space continium again,,,,,,,,,,,,,,,how bout just a few 'lazy' cyls...........kinda like lazy shifting. Besides, you and that banana seat scoot with you aboard, and a couple others need to get out this way again..........end of May through mid Sept. for some REALLY fun, snowless, rainless and break-down riding free mountain fun. Least I'll have to actually 'work' the Venturer a bit sos you all can keep up. Get to LEAST do it in the daylite and not have to folow a tow-truck after dark and in the snow!

[BA80]

Yes, a wrinkle in the time space continuum will cause a solid object to turn slower on one end than the other.

Venturi is just another name for worm hole.

[motoman]

Amazingly, after much rocket scientific calculations, I have arrived at the same conclusion Greg.

Actually, it's venturi velocity that affects what Ian was explaining. Out of sync you have one or more cyls. 'carrying' the ones with lesser veturi velocity.. Hence the ACTUAL speed difference per given rpm.