Rebuilding my 907 ST3

paso750 · **Posted:** Mon Jun 13, 2011 9:39 am

no airfilter ? Are two different airhorn lengths standard ?

Claude, would that also matter with a temperature sensor ? I could imagine that`s more a problem of pressure sensors but I don`t really now.

G.

JoKing · **Posted:** Mon Jun 13, 2011 10:13 am

pic 1:
Fitted w. "no toil"-like airfilter. The "dirty" look comes from the blueish filter oil.

pic 2:
lower part "installed"

pic 3:
fits nice

JoKing · **Posted:** Mon Jun 13, 2011 10:18 am

JoKing · **Posted:** Mon Jun 13, 2011 10:24 am

pic 1:
view from above w. top of irbox fitted

pic 2:
lower "lid" of the opening fits to frame

pic 3:
upper "lid" of the opening fits to frame. The frame triangle behind the steering head is used as a part of the airbox this way. (see also pic 1)
Maybe the opening is too large, but we will see.

907pasonut · **Posted:** Mon Jun 13, 2011 10:26 am

when I had issues with the FI chip I was seriously thinking in shifting the press sensor away from box but never did, changed chip instead...the 907 has a water temp sensor, but no air temp sensor...(I didnt understand your question G) :dunno:

I would fit the press sensor in some sort of small open container away from air turbolence, with this major modification there is a bit of trial and error...

Tamburinifan · **Posted:** Mon Jun 13, 2011 10:57 am

Tamburinifan · **Posted:** Mon Jun 13, 2011 11:04 am

paso750 · **Posted:** Mon Jun 13, 2011 11:05 am

JoKing · **Posted:** Mon Jun 13, 2011 11:35 am

The equipment/parts are available. only the position needed.
I think i will position it somewhere near the intake, so the temperaturedifference caused by oil & water cooler to the real intake temperature will be as low as possible.

JoKing · **Posted:** Mon Jun 13, 2011 11:43 am

907pasonut · **Posted:** Mon Jun 13, 2011 11:47 am

JoKing · **Posted:** Mon Jun 13, 2011 11:50 am

I just got an answer from a guy who developes mappings for Porsche & develops different "intake kits" for cars and so on. He advised me to position the sensor directly in the airflow to the intake.

Tamburinifan · **Posted:** Mon Jun 13, 2011 11:57 am

That is maybe correct position in theory, I don`t know.

I meant that your ECU expects Air Temp sensor to be somewhere in front, under fairing,
like on the bike it once where placed on & map software developed for.
Probably no biggie placing it elsewhere, just away fr engine heat.

Tamburinifan · **Posted:** Mon Jun 13, 2011 12:02 pm

I just saw the Air s yesterday, on my airbox, just next to blue MAP 3wire sensor.
Brown 2wire connector to it, sorry no pic.

907pasonut · **Posted:** Mon Jun 13, 2011 12:22 pm

I will have a better look next time...never noticed a temp sensor :wacko:

Gert youre knowledgeable re FI system...what happens if you disconnect the air press hose and re-positioned elsewhere away from air box...I was contemplating this instead of the cigarette butt trick :dunno:

Rebuilding my 907 ST3

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