I'm trying to fix up a Yamaha FZR-R so I can get it registered. There's something under the seat, that appears to be rotated by two cables connected to the exhaust at the front of the bike. Neither I nor my Dad has the foggiest idea what this thing is. Anyone out there have ideas as to what it is, and/or does?
2007-05-26 01:52:04 · 7 answers · asked by tgypoi 5 in Cars & Transportation ➔ Motorcycles
Always give year, make, engine size and model # when asking questions. We need all of that info to give an informed answer.
The FZR's come in 2 sizes.
The years of each model make a big difference.
In your case, the part you're asking about isn't on the carburetor model.
"51" gave the best answer so far.
It's the "servo motor" that operates the cables, for the exup valve.
You'll need a shop manual to understand how to adjust it and test for defects.
http://www.motocom.com/motorcycles/
2007-05-26 07:11:23 · answer #1 · answered by guardrailjim 7 · 1⤊ 1⤋
Its the EXUP servo. It opens/closes a flapper in the exhaust to aid low midrange acceleration.
2007-05-27 15:55:59 · answer #2 · answered by moolie_wfo 5 · 0⤊ 0⤋
its an exup valve don't ask me what it stands for. you may be able to google it but what it does it opens and closes a valve in the exhaust system to vary the flow to give you optimal back pressure and performance.
2007-05-26 09:22:20 · answer #3 · answered by 51 6 · 1⤊ 0⤋
15+ years auto customizing
06 BUSA rider
Here ya go:
2007-05-26 09:27:28 · answer #4 · answered by Anonymous · 0⤊ 0⤋
exhaust at the front of the bike?
2007-05-26 08:56:39 · answer #5 · answered by Andrew 3 · 0⤊ 2⤋
Most likely the CDI. Be careful on it.
2007-05-26 09:02:53 · answer #6 · answered by Spaceman Spiff 3 · 0⤊ 2⤋
let me see
2007-05-26 08:55:13 · answer #7 · answered by exo 7 · 0⤊ 3⤋