TW217ccm - Akrapovic contre original

[macbig2k1]

Salut mes amis,

I was some weeks before the BWD on a performace stand with my TW217.
I've added the chart from the TW200 (org. Yamaha cataloge), to have a good comparison base.

Here are the download links for the chart:
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Please ask me, if you have a question.
I will try my best for a good answer.

Regards, Sebastian

[macbig2k1]

Question:
-1- Quelles sont les dimensions des gicleurs utilisés?
-2- L'AAC est celui d'origine ou  AAC Racing

The carb wasn't well adjusted at this time (and on the BWD), now I have this setting:
type: VM28-418
main jet: 190
slow jet: 25
needle: 5L01
needle jet: P-0
clip position (from top): 3
slide: 2,5
engine: 217ccm
snorkel (airbox): removed
exhaust: Akrapovic complete racing
pro: runs realy well
con: no power over 8.500rpm

[nico-dem]

mmmmiam  !!!!!  intéressant tout ça 

[sharkman]

Akra Powaaaaaa !! 

[macbig2k1]

Akra Powaaaaaa !! 

Yeh man

I am planing in 2 or 3 weeks a big session on a real Dynojet performance test bench, because other results are from a very cheap test bench.
These bikes:
TW125 (from Petra)
TW200 (org. from 1997)
TW200 (my motocross)
TW217 (my supermotard)

and these exhausts:
org. exhaust
open exhaust (YZ450 muffler)
Akrapovic SlipOn (simulated by the racing system with the org. header pipe)
Akrapovic complete racing system