Recent posts

#11

Girly Talk (1999 - 2006 Tigers) / Re: Surging at 3-4k RPM

Last post by Flyingwombat - April 22, 2024, 11:24:13 AM

So when I took apart the injectors this time I noticed damage to a seal. Replaced all seals, they slid in much easier this time during assembly.

Assessed current situation.

Adjustments : IACV set to 120, Idle fuel trim @ 16.4, Long term fuel trim @ +3

Engine starting is difficult with failing to rev, when it does start it revs to approximately 1200 RPM before cutting out.


Map is 9892, Yes Lambda sensor is there.

For good measure, and because it is easy I am going to re-check my spark plugs to see if they've fouled since put in.

#12

Girly Talk (1999 - 2006 Tigers) / Re: Surging at 3-4k RPM

Last post by the slow heart - April 22, 2024, 09:44:47 AM

Waiting injector seals replacement to rule them out.
Do you have lambda on the exhaust? Which map is on board now?

#13

ECU and Fuel Injection / Re: PreVIN 885i and TuneECU

Last post by the slow heart - April 22, 2024, 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 

#14

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.

#15

General Discussions / Re: Checking in

Last post by London_Phil - April 20, 2024, 08:56:44 AM

Not just me finding the weather frustrating...

#16

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...

#17

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.

#18

Girly Talk (1999 - 2006 Tigers) / Re: Surging at 3-4k RPM

Last post by Flyingwombat - April 17, 2024, 10:47:58 PM

Why 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.

#19

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?

#20

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.

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