Triumphrat

skenderbeg · 08-02-2007, 07:03 PM

Hey everyone-

I'm still having trouble with my '99 Adventurer, and the problems have recently gotten much worse making the bike all but undrivable. The bike needs to be revved above about 4000 for it not to stall. It idles like crap, frequently stalling. I noticed while letting it idle that I get some type of misfire ( a "pfft") from what I think is the right-most carb, and when I touch the right most head pipe after the bike has warmed up I think that it is a few degrees cooler than the others(this could be my imagination).

After reading the forums it seems that this points to it being a coil issue, and as some on the forum have recommended I'm thinking of ordereing some new nology coils (pfc-06s).

Can I rest assured that this is a coil problem or should I first bring it to the dealer to get the carbs synched and cleaned?

The bike has 5000 mi on it by its previous owner, who as near as I can figure never had it serviced. So the carbs might not be in the best condition and I will eventually have them synched/cleaned etc. but I would much rather get the bike streetable first and do as much of the work myself.

Also I would be bringing it to Great Bay Triumph and Ducati in Hampton NH. I was wondering what kind of reputation they have, or if any of you have used them etc.

Sorry for the long winded post and all the questions, but this is my first bike and first triumph so I'm kind still a noob when it comes to this stuff.

Thanks for your help.

BadMouth · 08-02-2007, 09:21 PM

Sounds similar to when I had 1.5 coils go bad.

Before you go spending money on anything, make sure it's the coil.
First, number your coils with a marker.
One at a time, pull each plug wire and install a spare plug in it.
Ground the plug to the frame with a jumper wire.
Now turn over the bike. You should see a fat blue consistent spark. Take note if one seems weak or not working at all.
Swap a different coil to that cylinder and see if you get the same result.

I had one coil that wouldn't spark at all and another that would only spark at higher rpms. Swapping them around to make sure you get the same result on different cylinders ensures that it's not something else in the ignition system.

Replaced all three with Nology and no problems since.

sean_x · 08-02-2007, 09:22 PM

Hi Skenderbeg,

Check out if your spark plugs are tight. It could be the source of the 'pfft' you can hear.
I had a similar problem with my 1998 TBS when I bought it. It ran rubbish really, but I also noticed the pfft and could feel the gas making the centre spark plug bung pulse while the engine was running. So its worth having a feel of the bungs if you've not done-so already.
I tightened my plug and it made a fantastic difference to my TBS.

Hope it helps.

Sean

jimmyj900 · 08-02-2007, 10:01 PM

Quote:

Originally Posted by skenderbeg

Hey everyone-

I'm still having trouble with my '99 Adventurer... The bike has 5000 mi on it by its previous owner, who as near as I can figure never had it serviced. So the carbs might not be in the best condition and I will eventually have them synched/cleaned etc. but I would much rather get the bike streetable first and do as much of the work myself.

It could either be the coils, dirty pilot jets in the carbs or a combination of both since they'll give similar symptoms.

5K miles on a '99 bike would lead me to suspect dirty jets first, but do the coil check Badmouth suggests first since it's quicker and easier than pulling the carbs to get to the jets.

Jim

bkline · 08-02-2007, 10:38 PM

Quote:

Originally Posted by skenderbeg

Hey everyone-

I'm still having trouble with my '99 Adventurer, and the problems have recently gotten much worse making the bike all but undrivable. The bike needs to be revved above about 4000 for it not to stall. It idles like crap, frequently stalling. I noticed while letting it idle that I get some type of misfire ( a "pfft") from what I think is the right-most carb, and when I touch the right most head pipe after the bike has warmed up I think that it is a few degrees cooler than the others(this could be my imagination).

This is the exact same symptom I had on my 96 adventurer. It was the right most cylinder. Before you replace a coil, pull the carbs and check the inline duck bill filter in the fuel line where it connects to the carbs. Could be clogged and in my case starved the right side more.

skenderbeg · 08-13-2007, 09:35 AM

Well, as cheap as I am I broke down and brought the bike to Great Bay Triumph for repairs. I spoke to the service manager Scott and he seemed convinced that my problem was with the carbs, saying that these bikes are notorious for having carb trouble. With what little I have read of this forum it seemed to me that the majority of these bikes had difficulty with the coils above and beyond any carb trouble, but that seemed to be the last of his concerns.

Anyway, I'm picking the bike up September 1st, hopefully I still have a few good weeks of riding left.

Thanks for all your help guys. I dont know what I would do without this site.

jimmyj900 · 08-13-2007, 08:50 PM

Quote:

Originally Posted by skenderbeg

I spoke to the service manager Scott and he seemed convinced that my problem was with the carbs, saying that these bikes are notorious for having carb trouble.

Actually, the only 'carb trouble' with the Keihins has been due to insufficient riding time! That causes the fuel in the carbs to evaporate off and leave a lot of wax and varnish plugging up the pilot jets -- mostly due to the 'reformulated' fuels that were designed for sealed fuel injection systems.

The Mikunis mostly had trouble with wear on the needle and needle jet that made them too rich at low rpms, but it took quite a few miles before that became a problem.

Jim