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Waiting injector seals replacement to rule them out.
Do you have lambda on the exhaust? Which map is on board now?
ECU and Fuel Injection / Re: PreVIN 885i and TuneECU
Last post by the slow heart - Today at 09:32:10 AM
Yes, since I got the map update all tests, mapping and sensors data are available. Had ambient air sensor drifting a bit ( apart from the iacv hose leaks ) and now oem one came into play  :friday
General Discussions / Re: Checking in
Last post by Lee337 - April 20, 2024, 08:13:46 PM
Last weekend riding around in the sun, Tuesday thunder  lightening & hail stones the size of marbles. Wednesday  really strong winds & rain...

Still  off to the Canaries Tuesday, hopefully the weather here will have improved by the time I get back.
General Discussions / Re: Checking in
Last post by London_Phil - April 20, 2024, 08:56:44 AM
Not just me finding the weather frustrating...
General Discussions / Re: Checking in
Last post by ghulst - April 19, 2024, 11:30:35 PM
I've got no clue where summer is, but the calendar tells me we are heading that way. Last Monday night I was walking in sunshine while being hailed on. Silliest thing ever. The weather is really 'interesting' this month. Started off as a sunny morning today, but by the time I got to hole three on the par-3 of my local golf course, I was wet to the core. Really annoying. Turned around and went home. I think I am going to need to connect the bike to the trickle charger to keep it alive...
Steamers (1993-1998 Tigers) / Re: Steamer with bad habbits
Last post by Titus - April 18, 2024, 06:42:44 AM
Anything above idle, chocke included makes it instantly die. Made it idle for about a minute using starting fluid before the air filter through the removable cap. Rattled like someone dropped a hammer in the engine when I tried to touch the gas, then I stopped.
Maybe it's fueling after all sometimes flooding, sometimes leaning, I sincerely am beat by the steamer.
I got a mechanic for friday, if he can't come, I'll pull the carbs and see if I can find anything.
Girly Talk (1999 - 2006 Tigers) / Re: Surging at 3-4k RPM
Last post by Flyingwombat - April 17, 2024, 10:47:58 PM
Quote from: the slow heart on April 16, 2024, 11:34:15 AMWhy exactly OEM gauge, you could easily improvise with another pressure gauge reading max at least 5 Bar.

Exactly what I did in the end.

Pump voltage also, the el.socket is not super tight, so two thin wires could be put in the female orifices before plugging the socket, then use these two for your volt meter.

Have to check was there an easy way to clear long term trims.

So the pressure seems good, basically at 3 bar(g) consistently, even when it runs up the revs or stalls.

I have managed to find the number which changes LTFT to 3.0 (slider error still unresolved), much closer to 0 than -60.

So what I am seeing now.
At LTFT around 0 it fails turns over but doesn't rev to idle.
At LTFT around -10 it will remain stable but burning rich and smelly throttle response is slow to opening or closing.
At LTFT around -30 the application of the throttle will cause it to run up through the revs, even when throttle released.

So either burning rich or not at all. The opposite problem of previous lean burning.

I'm starting to think major vacuum leak from somewhere. Partly because if I manually cover the IACV to restrict air flow at idle it's still pulling air in from somewhere... Also looking at the throttle body vacuum it's far lower than it was when I last tried balancing it.

Potentially it's a throttle body gasket? Or maybe something else...

Still to replace injector seals, they arrived today.

Steamers (1993-1998 Tigers) / Re: Steamer with bad habbits
Last post by London_Phil - April 17, 2024, 04:21:24 PM
Will it run with the choke out?
Steamers (1993-1998 Tigers) / Re: Steamer with bad habbits
Last post by Titus - April 17, 2024, 04:00:07 PM
Nothing works, booked a mechanic for friday, hope he can figure something out, she runs on starting fluid though but if you try to accelerate something bangs inside.
Girly Talk (1999 - 2006 Tigers) / Re: Believe it or not... start...
Last post by Lee337 - April 17, 2024, 10:28:15 AM
A bit of a stab in the dark, but could it be a bad earth somewhere?

I say this as my current project, a Daytona T595 has a very intermittent start circuit, sometimes press the starter& it'll turn the engine over, sometimes it doesn't. My issues aren't identical, I have a lot more electrical gremlins that just the one, but they seem to be earth related.

It may also be relay related. At one point the only thing that worked when I turned the ignition was the fuel pump and a click from the ECU, everything else was dead. I replaced all the relays & while it didn't cure everything, I did manage to get the engine to turn over & most of the light to do what they're meant to.