My guess is it was not the CVT.

The CVT is in or near 'High' Gear at 52 MPH so not much will be happening at that speed. But the engine can surge. If the Sparkplug's coil is loose and not snapped down I have felt mine surge at 50-60 MPH.



The term 'Transmission' on the Burgman 650 is the 4 gears behind the engine right at where the Final Drive swing arm is. Some miss call the CVT the Transmission.

 

Guess what the T in CVT stands for ? riiight....

 

I had a similar surge problem on my 07 650 and it turned out to be the throttle position sensor. You can test the sensor with a multi meter. Here is a link to the thread I posted when I had the issue and what I went through to isolate and fix the problem. https://burgmanusa.com/forums/15-burgman-650-2002-thru-2012/59730-throttle-position-sensor.html

 

CVT=constantly variable Transmission

 

Continuously variable transmission. The name is because the variation in the pulley ratios is continuous (that is, there is continuity instead of steps between the available ratios*).

On the Burgman 650, it's termed an ECVT (electronically-controlled continuously variable transmission) because it uses a computer controlled servo to set the pulley ratio rather than the more-typical centrifugal weights ("rollers" or "sliders" depending on the implementation).

[ /pedantry]



* This is like the difference between "real numbers" and "integers".

 

And since we're defining and explaining now... The manual mode only SIMULATES fixed gears and holds or locks the variable pulleys in specific ratios for the requested "gear" so it only SEEMS like a manual transmission.

 

Don't know about what happens inside the transmission, but to change gears, my thumb ACTUALLY has to press a button. That makes it manual to me. :wink

 

Suzuki should not have called those 4 counter rotating 'Reduction' gears the Transmission. True, they do transmit the power from the clutch to the final drive but in the sense of a shifting transmission then NO, they missnamed it. It should just be called 'The Reduction Gears'.

In just about every modern car automatic 'Transaxel' there is, in the same housing case, a transmission that changes the gears (like our CVT). Then the trans output goes to a set of reduction gears. These reduction gears transmit the power to the axle part. They are the same EXACT function as our Burgman's 'Transmission'. ???

 

Per as Dave_J stated nothing happens inside the "transmission" since that is really only a reduction gear set. Yes, manually pressing an up or down button does make it seem like a manual "transmission" but the CVT is simply adjusting and holding the variable pulleys to the ratio predetermined by the selected gear. Thus is the function of the electronic CVT, or eCVT. You will notice that if you manually select a higher "gear" and then slow down to a stop without manually changing your selection the eCVT will automatically drop into a lower "gear" to keep the engine from lugging and/or stalling.

 

It’s partly a culture/language problem.

Historically the US tends to use “transmission” to refer to a changeable gearbox.

Other regions (including U.K.) use “transmission” for the whole drivetrain (engine output to axle) ie everything that is transmitting force from one place to another - prop, diff etc

I think partly due to US using so many automatic transmissions in cars (very rare in Europe etc)

Cross pollination and translations have mixed the 2 together so some people use the term interchangeably.

 

Not really. It clearly states it has a CVT which stands for "continuously variable transmission" which in this case is NOT the rear end construction.

 

Verbing weirds language.