20 Most Recent 2001 Triumph Triumph Bonneville Questions & Answers

It has been a while... but I believe there is a round access cover about 2" in diameter on the right hand side of the bike, forward part of the engine. That corresponds with the end of the exhaust camshaft. In this photo, it is chrome plated. They are held on by two philips head machine screws. The points themselves are mounted on two plates. The first plate adjusts both sets of points, the second adjusts the difference in the two sparks. That said, you might be on a wild goose chase. Most of the older T120s and T140s have already been converted to Boyer electronic ignition systems. MUCH more reliable, and much less maintenance. Smoother, and more precise as well. Boyer conversion or not, the access plate in in the same place. It just might be a "pointless" ignition. See these guys - they have very good telephone support - and will have Boyer kits in stock. British Cycle Supply, item 331 Series Boyer Electronic Ignitions

if it has been sitting for a while, the brake pistons may have seized.

have you tried replacing the cdi unit this controlles the spark to the coil ??? get back to me

The points cover should be on the right hand side of the engine, at the end of the exhaust cam shaft. It is possible that the original plate was replaced by an aftermarket version with cooling fins. That doesn't do much, but it *looks* cooler to some eyes. Most of these bikes have been refitted with Boyer ignition kits, so under the plate the points are no longer there. They are likely replaced with a sensor and magnetic sensor. That is a MUCH more reliable and maintenance free system. If you do still have points, there will be two contact sets. The entire disk shaped plate will rotate to adjust timing and a smaller partial plate containing the second set of points can also be adjusted. That gives you control over timing, and difference between cylinders. Really, I was a stickler for "original" on my bike, and I regret not changing to an electronic Boyer system as soon as they became available. Go for the upgrade. It's well worth it. A good shop can have it done in an afternoon, and you will never have to think twice about ignition or timing again. Boyer Electronic Ignitions http://www.britcycle.com/products/331/331_series.htm

Get a paperclip or a short piece of still wire. Put your fingers behind the side stand and trace to 2 wires from the switch. They will go to a little plug behind the side cover. Unplug the plug from the socket and 'jump' the plug with the wire. make sure you jump the right side, jump the side going into the harness, not the switch side. Don't leave it 'jumped' for ever. You might have a mishap if you ride off with the side stand down. This is more a temporary fix / bodge to get you home.

NGK Part # 5044 {#1262, 4525, 6824, 7051, B8EV, B8EVX, BR8EIX, BR8EVX} Iridium; Iridium IX 750 Model; T140V; Gap .024 CHAMPION Part # 88091 More Info {#8809, 88092} .036 Good luck, Bill

180 DEGREES OUT OF TIME??? IF YOU HAVE SPARK AND FUEL. AFTER REMOVING ALL SPARK PLUGS HAVE SOMEONE PUT THERE FINGER OVER SPARKPLUG HOLES AND CK THAT PLUG IS SPARKING WHEN ON COMPRESSION "WHEN KICKING HER OVER". IF NOT SWITCH POINT WIRES GOING TO COILS.

1973 BONNEVILLE HAS DUAL POINTS UNDER ROUND CHROME COVER RT SIDE WHEN SITTING ON BIKE. THATS THE IST PLACE TO CK. 15 THOUSANDS AT WIDEST PART OF LOBE IS A GOOD PLACE TO START.

Oil level over full or gas in the oil.

low compression 92 octane high compression 98 octane.

yes, but it would be several thousand dollars with all of the parts and labor. these require feedback from sensors, a high pressure fuel pump, a different wiring harness, and plenty of other parts that are very expensive.

You have L,R turn,hazard,high/low lights,start,stop,horn, stop/run/stop,

97 foot pounds plus age make this a tough one to break loose. put it in first gear and have someone stand on the brake. a 1/2 inch air impact should help too.

16.0 liters

under the left side cover you'll find three screws holding it in.

16 Liters

Hi,sounds like a blockage in carbs,,remove and clean,,,(blocked main jet)

you can wire it directly to the ignition switch

Hi I would be covering battery with a Rubber or Plastic ma, This should surely stop any shorting out. Regards Billy