Triumphrat

ronniena · 08-06-2005, 01:54 PM

my legend started mis-firring at low rpm i have read other places about this, it has 7,000 miles on it. am a going to have to replace the coils every 7,000 mikes or is there a cure? how do you check the coils? thanks ron :???:

ronniena · 08-06-2005, 01:56 PM

sorry 01 legend ron

jimmyj900 · 08-07-2005, 12:45 AM

I guess the simplest way to check coils is swap them around and see where the misfire moves. If you've got the exhaust with a single pipe on the left that will let you find the bad coil easily.

Otherwise, connect a spare spark plug to a wire and ground the shell to the chassis with a booster cable. Then crank the engine and examine the spark. Fat and blue is good, thin and yellow is bad.

You can also try changing the plugs. If the misfire clears up then you're probably good for a few hundred miles until the misfire starts again. That will mask the problem for a while, but you'll still have a bad coil.

You can replace the Triumph coils one at a time as they fail, but the only sure cure seems to be a set of Nology coils.

Jim

bigeffinpimp · 08-07-2005, 03:27 PM

One thing you could do is check to make sure you have the right spark plugs because I bought my Legend used and it had the same symptoms. My coils were just fine and they are actually the stock coils that come with the bike. I actually have an old bench that I was able to remove the coils and run them up to make sure they were to specs which they were. I decided to check and make sure the spark plugs were clean and I found they were the wrong model. They worked, but I would misfire at about 6000 rpm's. Not saying that is the problem, but it is one thing to check as well as the coils. After I changed the plugs everything was all good.

ClassiclyMobile · 08-08-2005, 02:31 AM

I have a '99 Legend with 30,000 miles and have had only one coil go bad. The dealer diagnosed it and replaced it for a half hour labor charge, plus the cost of the coil. I had checked continuancy and noticed no difference in the 3 coils. Dealer said he tested it under load to diagnose it.
CM

08-09-2005, 02:03 PM

Hi, I have just had the same problem on my 2002 T.Bird I bought 1 new coil and swapped No.1 without any change. I replaced the original coil and swapped No2 to my delight this has done the trick. When I tested the coils No 2 and 3 gave the same readings.
Hope you get it sorted.
Stevejacko :razz:

ronniena · 08-09-2005, 03:25 PM

thanks everyone, I don t mind buying a coil, but am I going to have to buy one every 7000 miles? if so I will go back to Honda . looks like ereryone has had this problem

[ This message was edited by: ronniena on 2005-08-09 13:28 ]

JWoodsie · 08-09-2005, 05:47 PM

Quote:

On 2005-08-09 13:25, ronniena wrote:
thanks everyone, I don t mind buying a coil, but am I going to have to buy one every 7000 miles? if so I will go back to Honda . looks like ereryone has had this problem

Must be a problem with the extra cold winters over there, I have never heard of anyone in Australia blowing a coil, I dont think its a common problem. Maybe the extremes of temperature is the problem.