Triumphrat

TJRCARRILLO · 01-02-2007, 02:25 AM

So I picked up a 66 t100 500 last week that hasn't been running for a couple years. The owner said that the bike started running poorly and eventually would not start. I pulled the plugs and they were oily. So I put in some new ones. I had noticed that the throttle was sticking so I checked the cable everything OK. I took the carb off and found that it was all gummed up. It looked almost like oil? I cleaned it up a bit (it probably could use some more cleaning). Put it back together gave it a couple kicks and it would start but die after a few seconds.After finding all that ***** in the carb I think I may need to replace the jet. Does anyone have some suggestions. This is my first experience with older bikes. It looks fairly simple so I thought I would start a new project. Its been fun so far.

jimballard · 01-02-2007, 08:56 AM

I think you summed it all up when you said: "probably could use some more cleaning". Take it apart and clean it good; the Amal carb is a very simple device, just take your time.

The "Village Idiot" speaks again: Jim

GrandPaulZ · 01-02-2007, 10:52 AM

Go down to your local auto parts store and buy a one-gallon can of Berryman's Chem-Dip, with a little parts basket inside.

Totally disassemble the carb and soak all metallic parts for 1/2 hour minimum. While they are soaking, prepare a medium size bucket of water with a hose flowing easy, and a source of compressed air (compressor with blow tip, or can of computer cleaner).

Pull the parts basket out of the soup and set it straight in the bucket of water. Crank up the hose and flush the parts thoroughly for a few moments, make sure you get each part from all angles, all orifices, etc with a solid blast of water. Then, drain off the water and blast 'em good with air 'till totally dry.

Next, pull a single strand of wire off a wire brush (use a pair of pliers to pull out the whole strand. don't snip one off short. Use this strand to probe all the tiny orifices of the carb.

NOW re-assemble it, and you should have a relatively smooth idle.

TJRCARRILLO · 01-03-2007, 01:10 AM

Thank you for your help guys. I went to the dealer here in town and picked up an Amal repair kit and cleaned everything up. The bike is running great! Thanks again.

TJRCARRILLO · 01-04-2007, 04:30 AM

I spoke too soon! I was anxious to put a few miles on the T100 after work today, so after a few miles I noticed the bike starting to idle poorly. It would start revving high and then drop low and begin to pop and sputter. Did I mention there was black smoke coming out of the right side exhaust. I limped home and took off the spark plugs and the right side was black and the left side was oily. What does this mean? I'm thinking the float might need adjustment, check the pilot screw and air mixture. I think that might correct the idle, but what about the spark plugs? Does anyone know where the needle clip should be. There are three notches and I put it in the middle. The carb is an Amal 626. Again, Thank you for any information.

GrandPaulZ · 01-04-2007, 02:40 PM

Oily plug usually indicated worn intake valve guides.

Sooty plug indicates too-rich condition (too much fuel).

Try LOWERING the carb needle by RAISING the little clip, one notch.

Mecchanica · 01-05-2007, 09:49 PM

If you have the plastic float needle, replace it with the rubber tipped brass type (Viton tipped). The oil is another matter which will have to be addressed by a trip into the engine.