Time to fess up, new addition

[mnnden]

Congratulations!!! I have been lusting for a Burgman for awhile now, I just think they are great, I think one would be great for touring, Den

[boxermania]

Decided to baseline the scoot prior to the mods....here are the results





Expected a bit more HP, like 44 RWHP, however, it returned 38.5 HP, by looking at the A/F ratio I see where there is some HP left at the table. Other than that the scoot is running great.

Will have to defer the Leo Vince exhaust install until I can get the A/F ratio closer the power range....12.8 to 13.2 otherwise all the work will be wasted. From the OEM standpoint the scoot is tuned on the lean side to maximize fuel economy. The top trace is HP, the lightly lower is torque, the bottom graph is A/F ratio.

Looking at a couple of options.....will keep you posted.

[CycleRob]

Al, Those curves are bizarre at the peak RPM where they turn around and the RPM decreases as the HP reading gets larger. I've never seen anything like that. It almost looks like the power increased when the throttle was rolled to off, but the A/F ratio says no, it was still at WOT. Definitely a quirk of the CV Transmission. The CVT seems to get more efficient while the ratio "shifts" into a progressively taller "top gear". It may give you a better, more useful curve if you have them print you another graph using the MPH parameter instead of the RPM. The test's stored in their computer, so there's no need to test it again. It (MPH) should then be the default parameter for all CV Transmissions.

Also of note is the CF (correction factor) "smoothing" set at 3, in the upper right portion of the graph. That CF of 3 mathematically smooths out the data points (more than a "2" factor) so the curve tracing is less choppy, but with the bike's heavy flywheels, EFI and the CVT's inherent smoothness, you may not need it set to the same default needed for "other bikes".

My advice to you, and you won't take it, is to enjoy it's "better than car" performance, great fuel economy and spend your performance dollars only on the Leo Vinci exhaust system and maybe another more powerful M/C. EFI bikes traditionally are not as negatively affected by exhaust changes as carburated bikes are and the aftermarket exhausts usually give max RPM power increases and always sound better.

.

[Boxer]

and maybe another more powerful M/C

I think he might already have done that...

...but I just can't recall what the name of that thing was Al told me about Friday.

[duckdave]

Alright! Cat's out of the bag. Give it up...

[boxermania]

CycleRob....yes, the curves are quite different from what I have been exposed to, however, I have seen others for the CVT tranny's and are basically look the same. I chatted with the dyno operator at length, he is a very personable young man willing to learn and the MPH print, by the nature of the beast would display exactly the same results.....

One thing that baffled me from the dyno session is that the HP was all out by 6,000 rpm and even though I have had the scoot at illegal speeds I haven't looked at the tachometer, I'll have to check that to rationalize what’s going on......

It is obvious that the Suzuki engineers did their homework, do remember that I spent a better part of a year in Tokyo working with Japanese engineers and trust me they go over everything time and time and time again until they beat it to death. I haven't quite figured out what is the algorithm but it is definitely good. Basically the scoot begins a soft engagement at 1600 to 1800 rpm from a dead stop (idles at 1000 to 1200 rpm) and depending on the amount of acceleration it will top out at 4,000 rpm (on drive) which gets you up to about 65 mph on the highway, any additional power requirement beyond that essentially goes based on throttle opening up to the redline......of course the same applies to the Power setting, except the initial rev ceiling goes up to 5,000 rpm.

I take exception to your

My advice to you, and you won't take it,

as you mentioned with implied certainty. I value your advice and sometimes I'll go with it while other times I'll follow my gut feeling.....I'm sure you are no different.....

I do have the Leo Vince and aside from the quality of the system, the sound, is one of the best for the exhaust systems available for the Burgy, however, at this stage and from my prior experiences there are two ways to go to reclaim the HP left on the table (yep, that is my weakness) is via a fuel nanny or an adjustable pressure regulator.....I like the second choice, less expensive and adjustable to add performance or mileage.

There is a guy in Texas that converted his Burgy to look like a recumbent bike and added an aluminum tank, pump, adjustable pressure regulator, all external, and tunes the pressure from 38 to 46 psi (43 being rated). At the lower pressure mileage goes up at the higher he gets a bit of added performance. If you remember that's what I did to my R1150R when I ran out of fuel....swapped the 3 bar regulator for one rated at 3.5 bar from the next to last K bike and the engine woke up.....

I just can't get the adjustable regulator out of my mind...... just have to figure out how to rig it up as everything on the Burgy is inside the plastic tank, located under the seat.

[boxermania]

OK, I give up, just because I let duckdave down at last week's Bash.

I have been after this particular sample for the better part of 4 years

1998, last year of manufacture
11,000 + miles
Cherry condition
Tools and Manual
New tires and battery
Full service at 9500 miles
It basically requires no maintenance, other than O&F and tires
Water cooled and shaft drive
They go well past 100+ K miles with little servicing
No need to adjust valves, no it doesn't have a Wankel engine
Gets 50+ mpg at normal hwy speeds
The VIN is 7 numbers less than the highest recorded VIN of all the samples in the US
IMO it is one of the best kept secrets for all around bikes, if not the best
The color is red

With this information anyone that has been ridding for a bit should be able to figure it out......Phil knows but he doesn't kiss and tell.......I'll be posting some pics this weekend.

[DSKYZD]

I'll bet it has a 45 degree 800 cc v-twin...

[MattPie]

brem

Point well taken, based on your experience. But CVT's have changed a lot since centrifugal clutches. get a ride on a 650 Burgman, I'm picky and I'm smiling.....I'm sure you will be smiling as well.......

My girlfriend has an Nissan Altima with the CVT. If I were to buy any automatic, it would be that CVT. Great mileage and fairly snappy for a 4-cylinder. Enterprise rent-a-car rents them around here, take one for a long ride if you have $40 to spare.

On the flip side, I've also driven a Dodge Caliber CVT, and it has the worse transmission I've experienced in a long time. The same company makes both CVTs (Jatco, look it up on youtube for some nifty videos), but the software is different. The Dodge(y) version seems to pretend it has gears, but that makes it feel like those awful old automatics that the RPMs just kinda hunt around without being directly tied to the wheel speed.

[boxermania]

And the winner is Brian......

[CycleRob]

Al,
When we talked on the phone about your new toy I was more enthusiastic about that bike than you were. My shop serviced 2 of them on a regular basis for many years, so I got to ride them to scuff in the new tires. Lots of built in storage. Bulletproof engine, trans and shaft drive. Extremely low maintenance, except for occasionally changing the 4 sparkplugs. Great handling and no vibration. Good weather protection without being hot in the summer. Low down body mounted mirrors look under your arms and have a clear and wide field of view. Extremely quiet running mechanicals. A big plus is the 55 MPG it's capable of on regular gas. Only Honda could create such a great first effort, even if it didn't sell well because of (?) it's looks (?) not enough power (?) not enough bells-n-whistles (?) . . . . . Whatever! A very pleasant bike to spend a day on, no matter what kind of roads you travel.

I predict you'll sell the scooter and keep the new (red bike).

[NoRRmad]

Annnnd... The Red Bike is???????..........