Suzuki Burgman modification (aerodynamics + gearing mods)

[The Atomic Ass]

Originally Posted by janvos39

I found out in the mean time that the newest Suzuki Burgman 400 has a changed gear ratio. This is about 5% higher than older models of the 400.

I hadn't heard that. I assume by newest you're referring to the 2007 and later models?

Also, it looks cozy. I need to find some coroplast and then rip-off your design.

[janvos39]

I found out about the different ratio when I bought a 400 injection engine from a totall loss Burgman.
The way it is now it is indeed cosy and very comfortable , certainly when I start driving at near freezing temperature. I can recommand it.

[janvos39]

Found nice example of Dutch project with 125 cc bike

Allert

[Electric Frenzy]

it would be a lot more work but my honda reflex 250 has a 2speed CVT that works like what you're talking about. It's a full cvt but there is a 2step final drive built in that allows you a shorter gear for 0-40mph and a taller gear for 40-80mph. Its a little clunky during the transition phase but there is a fix for it to keep it nice and smooth.

if you could find an old Reflex transmission all you'd need to do is mat it up to the current 400cc engine and it seems like that may be easier than trying to fabricate your own from scratch.

[The Atomic Ass]

Originally Posted by Electric Frenzy

if you could find an old Reflex transmission all you'd need to do is mat it up to the current 400cc engine and it seems like that may be easier than trying to fabricate your own from scratch.

Not that easy, the Burgman engine and transmission are in the same case.

[The Atomic Ass]

Originally Posted by janvos39

I found out about the different ratio when I bought a 400 injection engine from a totall loss Burgman.
The way it is now it is indeed cosy and very comfortable , certainly when I start driving at near freezing temperature. I can recommand it.

Is that injected motor working? I'd think you'd be able to swap that in and have a quick boost in FE right there.

And I've ridden down to -7F. Ya' need electric heat at that point.

[janvos39]

No it is not yet working. I aim still looking for ECU which was not available. Probably I have to start with a carburettor to get it running. I need an engine to replace existing one when I start rebuilding the gearbox to the additional drive.

[janvos39]

Hi Electric frency you can see nothing news in engines. The reflex solution is by my knowing not used in my area. Do you have some drawings or pictures to show? I am very interested in their solution.

[SVOboy]

Wow, I can't believe I never opened this thread, great stuff

[cvetter]

Hooray! I am so happy to find this site and to see that there are others interested in fuel economy. I must leave right now but I want to invite all with street streamliners to my first "Gathering of Streamliners" to be held in conjunction with AMA's Vintage Days in Ohio at the end of July in 2009.

Thank you, I will be back.

Craig Vetter