Triumphrat

KD5QOQ · 01-09-2009, 07:25 AM

`99 Adventurer, I was buzzin' down the freeway about 75MPH 5K RPM and when I exited and began to slow down the motor died at about 30 MPH.
I pulled in the clutch and the engine which was had come to a stop backfired twice (once from each pipe.
After about ten seconds I hit the start button and it took off and ran well ever since (about 35 miles). Any ideas? It was scary I'll say that!!

triumphjan · 01-09-2009, 02:20 PM

I had that same problem to, on the freeway to,with my Thunderbird.
I was thinking on vapour look ( gas-cap) in the fuel hose.yes then you have backfired.
The engine was stop about ten second, the fuel was coming, no vacuum, fuel hose come on with fuel, and starts again.

My solution was shorten making of the fuel hose and remove the non return valve, from the fuel tank.(when it is on your adventurer to)

When you remove this, the only thing jou have, is a little bit of fumes for a short time when you stop the bike. When the engine is hot.

It can by your problem to, I do not say it is.

But i had the same symptom only 1 time.

KD5QOQ · 01-09-2009, 04:00 PM

I think that's the tip over valve you're talking about and I don't have one.
One person thought that maybe while I was decelerating that I flooded the engine enough to make it stall. I can't imagine all three cylinders flooding at once though.

BlueTbird · 01-09-2009, 05:59 PM

I have had this problem with my 95Tbird. Riding down the freeway and and all of a sudden the engine is running at low power, as if running out of gas. Stop, turn off engine, wait 30 seconds, then start engine and all is fine. This was happening once every 3-6 months. I think it is a fuel delivery problem! Realized that if I leave the petcock on reserve, it now happens less frequently (once a year).

toller · 01-09-2009, 10:47 PM

I have a completely different basis for a similar problem; the complete shutdown of my motor and all electrics. Its not as readily noticeable on the highway that the lights are out, too, unless it happens in the evening. Triumph's wire junctions are not particularly waterproof. I pulled apart each junction, cleaned them up and added dialectic grease and the intermittent shutting off no longer occurred. Until then I thought it was coils, ignition, all sorts of stuff. Go for the easy repairs first.

Good luck. Intermittent problems are the worst.

KD5QOQ · 01-11-2009, 11:10 AM

Makes sense because I had just washed it and had to clean the low oil pressure connection at the sensor right afterward. I don't quite get the two huge backfires though.
It has stalled at a stop once or twice since then though.

triple3john · 01-11-2009, 12:21 PM

It could be the ignition sensor. as the symptoms are cuttingout/backfiring/flames out of exhaust. Bike will run prfectly when cold and then the engine stops when warm. This is a cheap part to replace. It is located in the RH engine case and has a wire coming out of the casing at the top.

KD5QOQ · 01-12-2009, 09:06 AM

One other thing I've just noticed that's started happening is that the pointer on the tach starts to twitch about 2-4 hundred RPM at the moment it hits 5K rpm below that it's steady.

General Sir Ron Pig · 01-12-2009, 02:44 PM

Sounds similar in symptoms to my current problem.

First, a coil went. Replaced coil. Misfire on another cylinder. Replace all coils. And spark plugs. Add Redex to the fuel to clean things out a bit.

Still not right. Misfire when given throttle-so much so that the engine can die. And it usually dies when I'm coasting to a stop.

Next, I'll clean the gauze on the fuel filter and do what triumphJan suggests-get rid of the non-return valve.

Strangely, if I turn the ignition on and off, or the kill switch on and off, it r4starts straight away.

I'm beginning to think ECU. Ouch.

walshja · 01-12-2009, 02:57 PM

Quote:

Originally Posted by triple3john

It could be the ignition sensor. as the symptoms are cuttingout/backfiring/flames out of exhaust. Bike will run prfectly when cold and then the engine stops when warm. This is a cheap part to replace. It is located in the RH engine case and has a wire coming out of the casing at the top.

I had the same problem on my 1995, and it got progressively worse over time.

It was the ignition pickup, as triplejohn said, a 5 minute job to replace, part cost $75.