adithorp
|
| posted on 14/5/07 at 10:12 PM |
|
|
How rough would you expect...
...my 06 R1 to run at without a power commander? I've just started up for the first time (just to check it runs before stripping out un-needed
stuff from the loom) and it runs pretty rough. Acts up after bliping the throttle and doesn't settle back to idle for a few seconds. Also sounds
weak but then my 20 odd years of experience in the car trade doesn't really cover BECs!
ps. this is my first post so be nice to me!
Adrian
|
|
|
|
|
Jon Ison
|
| posted on 14/5/07 at 10:16 PM |
|
|
If its not running on the stock air box and exhaust manifold, rough, dog rough. Try dropping air box on and trying if its not all ready on, that will
make a difference.
Oh, welcome.
|
|
|
adithorp
|
| posted on 14/5/07 at 10:54 PM |
|
|
I put the airbox on it on and found no real difference. I've got a 4-2-1 manifold on into an aftermarket exhaust which is probably the problem.
Also the air pressure sensor looks to have some damage which I'll test tomorrow. From experience with car engines I'd say it was weak.
Also I don't have an exup on.
I have the clocks but didn't connect them as I only started it to see if it ran (can't find any sign of the coded immobiliser/key
I'd been warned about) as I didn't want to spend time stripping and modifying the loom only to find I needed another one.
Adrian
[Edited on 14/5/07 by adithorp]
|
|
|
Pezza
|
| posted on 14/5/07 at 11:19 PM |
|
|
From what i've read the original r1 can is quite restrictive, using a a free flowing jobby generally requires re-jetting.
You couldn't pwn your way out of a wet paper bag, with "PWN ME!!" written on it, from the "pwned take-away" which originally contained one
portion of chicken tikka pwnsala and the obligatory free pwnpadom.
|
|
|
road warrior
|
| posted on 15/5/07 at 02:30 AM |
|
|
Hi Adrian
My '06 is very smooth. I have a foam filter with the air sensor in the base and 4 into1 exhaust with big stainless can. I don't have a
power commander.
As Chris suggested, plug the dash in and see if there are any codes.
I take it you have a standard ECU, if so you should have the key/immobiliser unit as a matched set.
|
|
|
Coose
|
| posted on 15/5/07 at 09:16 AM |
|
|
Isn't it funny that bike engines are seen to come from the planet Zog - they're just an engine like any other you know!  
Spin 'er off Well...
|
|
|
ChrisGamlin
|
| posted on 15/5/07 at 10:35 AM |
|
|
quote:
Originally posted by Pezza
From what i've read the original r1 can is quite restrictive, using a a free flowing jobby generally requires re-jetting.
Its injected though, so you can't re-jet (thats what the power commander is for), and I don't think a restrictive silencer wouldnt affect
it at idle unless it was virtually blocked up anyway.
If the air pressure sender turns out to be OK, my first guess would be low fuel pressure. What pump etc are you using, and have you got a pressure
gauge you could plumb in to check?
|
|
|
adithorp
|
| posted on 15/5/07 at 11:24 AM |
|
|
Think it may be low fuel presure as this morning the pump was making strange noises (couldn't hear it over the engine last night) and it
won't start now its cold. No residual presure held in the line after switching off either. Going to try and get a presure reading later.
As for the key, thats what I'd been told but I havn't got one and it runs (or did) and I've no unacounted for wires/connectors left
over. Strange but I'm not complaining. I'll ask Mal at Yorkshire Engines when I speak to him next.
Adrian
|
|
|
adithorp
|
| posted on 15/5/07 at 07:13 PM |
|
|
Exchanged the pump and it runs again. Still running weak but smoother. Takes its time to return to idle but I think thats just the ECU trying to stop
it stalling.
Anyway I couldn't resist and (hypothetically speaking) drove it up the street around the closed down supermarket car park and back. Woo-hoo!
It's hypothetically quick!
Adrian
|
|
|
ChrisGamlin
|
| posted on 15/5/07 at 09:39 PM |
|
|
Good news! A lot of EFI engines don't seem to snap shut back to idle like carbs do, I guess as you say its the ECU controlling the overrun back
to idle. The busas Ive driven seem to be especially prone to this "feature"
|
|
|
adithorp
|
| posted on 16/5/07 at 07:16 PM |
|
|
Put the clocks on today and checked the fault codes. Just the EXUP (open circuit) and some others that I could account for and didn't return
when I cleared the memory. Checked all sensors etc. all OK. Looked at the throttle bodies and found a bent secondary butterfly on No3 cyl' so
repaired that and reset throttles. Better but not right. Then found it! My cable is letting the throttle snap shut but pulling it open again for a
second. The cable I've used is too stiff. Doh! Going to take it off tommorow and see how it is.
Adrian
|
|
|
