It is cold and flu season and my Trophy has developed an intermittent cough. It occurs when I roll on the throttle hard. The bike shudders and the tach drops. The whole event only last a fraction of a second. I think I have a loose electrical connection. I have checked the battery connections and they are good. I have also checked the crank sensor and it ohmns good. I am going to check the igniter connector. Anyone have more ideas?
I recently replaced the battery and both headlights with halogens.
[ This message was edited by: Mark62 on 2007-01-02 17:45 ]
Yes I agree with you Norway.... I am going for the f-king coils!!! Have you done the nology coils? Others seem to have good luck with them. I know this supject has been beat to death, but one more lashing won't hurt
Had similar prob with mine a few years ago. After checking everything I could think of, took it to the dealer(was still under warranty). They replaced the coils, high tension leads, and igniter. Apparently igniter went bad and fried the coils. Ran great for another year. Another coil went bad, replaced both with Nology's, MUCH cheaper than Triumph's. No probs since. Oh, I also removed the piece of ***** rollover valve. Kept sticking and starving the carbs for fuel(Before anyone else says anything, I know it's there for safety reasons if you lay the bike down. I'll take my chances. Better than having the engine die in the center lane in Austin during rush hour. 'Nuf said). Not sure what the igniter cost's, but I know it's expensive.
The dealer in Norway said that they would not recommend nology, only original Gil coils, so I got an original. They could not come up with any good explanation why, so next time I`ll go for something else.
BTW, I just got my bike back from the garage, they changed oil and filter, spark plugs (yes I`m lazy this winter), changed a vacuum line and checked the valve clearance. 3 valves was to tight.
I have not tried her on the road yet, but she purrs like a cat.
Well...it is not a coil problem. The temp has been over 50 so far this week and the bike runs great.
I think I induced this problem by syncing my carbs at a higher rpm than idle and it made the bike "run cold". So when the air temp was in the 30's it never warmed up and cut-out.
This whole problem was a fault that I caused.
I guess I should retract my last post. I resynced the carbs and it still does it. If the air temp is below 50 she will cough when you roll on the throttle over 50 runs like a champ. So I am still looking for the cause.
Okay I am going way out on a limb now...
I have noticed that the bike doesn't act up during the first mile of operation. Also, if I pull a little choke it doesn't do it.
Today I rode 50 miles on the interstate doing 80mph (temp in the low 50's and she coughed), when I stopped the hose coming from the cylinder head on LH side of engine wasn't even warm and the radiator wasn't hot either.
This sound like a stuck thermostat ( in full open) not allowing the engine to reach operating temp. The engine is warm when I leave the house, but cools off in the first mile.
I have already change the fuel lines and checked the vent system.
How this for a long reach of logic?
I ordered a thermostat and it arrived Friday. Installed it this morning. Took 20 minutes. My old t-stat could be opened with finger pressure! New one is tight. Went on test ride and so far so good...
During my troubleshooting I found: a bad thermostat, leaking fuel petcock diaphram, dirty air filter, clogged low speed jet on #2 carb and of course the COIL. My total was about $200 and a lot of cussing and labor hours. Now the bike runs better than ever and it is ready for the summer!
This is an older thread, you may not receive a response, and could
be reviving an old thread. Please consider creating a new thread.
Triumph Rat Motorcycle Forums
A forum community dedicated to Triumph Motorcycle owners and enthusiasts. Come join the discussion about performance, racing, cafe racers, bobbers, riding, modifications, troubleshooting, maintenance, and more!