Question about 1996 Triumph Trophy 900

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Cutting out hi , i have got a triumph trophy 900 , 1996 . it starts fine every time and rides well at 1st then it starts to cough where you can put it on full thottle and dont get anymore revs . it also just cuts out ( VERY ANNOYING WHEN OVER TAKING ) it will only start back up again if on chock and takes a little while to stop coughing and then rev nice again and ridable for a little while . i tried something new last night by not going oer 60 mph and seemed ok , i had a little cough but reved it out and it carried on . i took it out today but only around town where i dont ever seem to get problems with . PLEASE HELP as i us this for work . many thanks Aaron

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I'm not too familiar with Triumphs but assuming your bike has carbs and not fuel injection, then it is time to clean the fuel system. Remove the water trap bowl at the bottom of the petcock, (gas valve). Is there any water or trash in the bowl? Drain a cup of gas from the tank. Is there any water or trash in the cup? Dump it, clean it and re-mount it, ( not all bikes have a water trap bowl ). Install an in-line fuel filter.

For each carb > Drain the carburetor. There should be a screw on the lower side of the carb float bowl. Remove the screw then replace it after the fuel drains. Turn the gas back on and wait a minute for the carb to fill with gas. Install a new stock NGK spark plugs and start the engine. If the bike doesn't start and run properly then shut off the gas and remove the carburetor from the engine.

Remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray into all the little airways and fittings in the carb. Remove the idle screw and the air screw on the outside throat of the
carb and spray into the screw holes as well.
Be sure to put these two screws back in the same hole they came out of. IMPORTANT > do not tighten these two screws down. Only screw these in until they LIGHTLY seat. Now turn each screw one and one half turns outward. Put the rest of the
carb back together, clean the air filter and install the carb. Let the float bowl fill then start the engine. This process should get you back on the road.

You may want to go to a richer main jet. If the jet is (for example) a 178 then change to a 180 or 182. This should fix the top end problem. Do this only if cleaning the carbs doesn't work.

Please rate this solution. Thanks!

Posted on Apr 20, 2009

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My bike turns over perfectly and runs fine but when the engine is hot after a decent ride the bike will not restart after switching it off it's like the kill switch is off starts fine after about hour

Hi, Sean and the usual suspects are:
1. Fuel tank empty.
2. The fuel tank has old dead gas.
3. Fuel tank bottom contaminated with ethanol sludge, dirt, water, rust, etc.
4. Fuel supply valve/petcock turned off.
5. Fouled spark plugs.
6. Engine flooded as a result of overuse of the enrichner.
7. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
8. Fuel valve/petcock or filter clogged.
9. Fuel line to carburetor or throttle body pinched, kinked or blocked.
10. Carburetor float stuck.
11. Fuel injectors clogged.
12. A severely discharged or damaged battery, you need 12.5 volts or better and be able to pass a load test if necessary.
13. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
14. Loose or corroded wire connection at the coil or plug between ignition sensor and ECM module.
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16. Ignition timing incorrect due to a faulty ignition coil, ignition module or MAP, CMP, CKP, O2, TPS, ETP, IAC sensors.
17. Faulty neutral, clutch lever, or kickstand safety switch.
18. Faulty fuel pump or fuse or relay.
19. A stuck bent or burnt valve.
20. Tilt sensor needs a reset.
21. Security system not disarming alarm needs a reset.
22. Check for engine trouble codes.
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Hi, I've a 1996 Triumph Trophy with a dodgy neutral light on the dash. Works fine on start up, but about 25-30 mins into a ride the light fails and won't come back on until the bike has been...

Hi, Mountainmad and the usual suspects are:
1. Neutral light bulb burnt out.
2. Faulty neutral switch.
3. A loose bulb in the socket.
4. Faulty wiring from the neutral switch to the light.
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Jun 22, 2017 | 1996 Triumph Trophy 900

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Hi my 1995 triumph trophy3 keeps cutting out at traffic lights ( ticking over ) iv stripped the carbs it only works for about 5 min then cuts out it's ok when I'm moving help . Squeaky

carb is probly dirty--low speed jets are clogged with varnish or idle control is not set rite--get a book on cleaning process--u can put on the choke slightly to remedy the situation

Mar 24, 2011 | 1995 Triumph Trophy 900

1 Answer

1999 triumph trophy it runs fine when first crank it up . then you go down the road and it justs died let it sit for a min. then it will crank right back up and do it again . i have put a new battery on it...

It's your crank angle pick up for your ignition timing. When they fail they go open circuit when hot then at cold they close again so hard to diagnose as resistance reading will be fine when cold. About 45 GBP for a genuine triumph one. About an hours work to fit it inside right hand crank shaft end cover.

Feb 28, 2011 | 1999 Triumph Trophy 1200

1 Answer

Hi my 1994 Triumph Trophy starts to misfire & loose power sometimes after stopping for a while it then performs ok what can i do

If the bike has an electric fuel pump, it may be failing at times. Check fuel pressure to confirm. Hope this helps!

May 21, 2010 | 1996 Triumph Trophy 900

1 Answer

It starts ok but when im riding it seems like it some times is running on two cylinders instead of the three i have a 2003 trophy 900

Check for water in the spark plug well. 
Probably worth pulling plugs and checking/replacing them. 

Aug 11, 2009 | 2001 Triumph Trophy 900

1 Answer

Have trophy 1200 1999 model-starts ok but when put in gear cuts out.Have put new fluid in clutch and tested side stand cut out light-still no joy.can you help

Clutch switch at bar end is busted and needs replacing, common problem, about 12 quid from a dealer, thinks bike is in gear with no clutch

Jul 27, 2009 | 1999 Triumph Trophy 1200

2 Answers

Intermittant power lose on 1996 tronph trophy 1200. 15000 miles

Hi and welcome to FixYa,

To my knowledge, most bikes of this class would exhibit the problem you posted if they have loose/faulty:
  • RUN or KILL engine switch;
  • side stand switch;
  • or as the mechanic thinks, the CDI.
You can try and verify by simulating the first two possibilities by riding on a straight road at regular speed and with no traffic.
  • Accelerate as you normally would then switch off the RUN; do the same for the side stand, even a slight extend from rest position would kill the engine.
I doubt if it is fuel related as normally, there would be hesitation and starvation before finally stalling.

Good luck and Thank you for using FixYa. Happy Holidays.

Dec 10, 2008 | 2000 Triumph Trophy 900

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Coughing '95 trophy 900

I think you would be better of checking the ignition pick-up located on the right side engine cover. you may want consider searching for info on the ignition pickup, as apparently it is a weak link on these engines. That was the first thing i repalced when i got got mine as it had sat for a while.

Nov 10, 2008 | 2001 Triumph Trophy 900

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