Question about 2003 Triumph Bonneville America

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Bike is back firing and has a hard time accerlerating 2004 Triumph America. Carbs are clean

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Sounds like the carbs need to be synchronized. What you have with a multi carb bike is a multiple small engines attached to the same crankshaft. If one is accelerating harder than the others, it will cause "cylinder fight" as the others either fight to keep up, or slow the faster one down. You need a special tool to do it, or you can get it done reasonably cheap at almost any bike shop. It could also just be a spark plug wire shorting out. And make sure they are in the right order. Good luck.

Posted on May 05, 2010

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2005 America started and idled but died when throttling up. Started back up 4 times with the same issue.Then, it keeps turning, but wont start. I let it sett for two hours then the same turning but wo


don't have enough information, can be a number of things. believe this bike has carbs, not injectors, so it could be something there. it starts and runs but dies when you throttle up so it does sound like it could be fuel starved

Aug 31, 2014 | 2005 Triumph America

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How to modify the motorcycle so that I do not have Lower back pain while riding mt 2004 triumph Bonneville america.


The problem is the forward controls and the handle bars combined not just the bars.

The problem will never be fixed just by fitting bar risers that will take some pressure off your wrists , but realistically there wouldn't be much there anyway because of the seating position on the America.
Might be time to start looking at a different bike.

May 14, 2014 | 2004 Triumph America

1 Answer

I have a 2004 triumph daytona. When it's sitting


ADDED NEW EXHAUST LATELY? SOUNDS LIKE CARBS NEED CALIBRATING. IF BIKE SAT DOWN FOR THE WINTER OLD GAS CAN SOMETIME GEL IN INJECTION SYSTEM. RECALIBRATE CARBS AND CLEAN INJECTION SYSTEM SHOULD DO THE TRICK.

Jun 14, 2013 | Motorcycles

1 Answer

Triumph America 2004. Shortly after purchasing second hand, the bike started to only fire on the left hand cylinder on starting. However after driving between 1km and 10kms the 2nd cylinder would fire up...


You might try looking at your transistor it could be the cause of your problems. Even though it is a carb bike it will still have an transistor pack or similar that controls your spark. It is possible that failed. Try one from a bike that you know is working if that makes a difference that is your problem.
Although I'd also look for broken wires and poor contacts.
If your good with a multimeter and you know the specs of your coils and transistor than you can try and test them.

Sep 19, 2011 | 2004 Triumph America

1 Answer

My triumph tt600 2002 has developed a cough and splutter when idle and low revs! It did back fire and cut out when slowing to stop. I have taken baffles out and been running like this for a year. Just had...


I would start with new plugs and cleaning the air filter. Also, if the bike has carburetors, I would drain the carbs. Condensation from the gas tank may have gotten into the carb float bowls.

Jun 22, 2011 | 2002 Triumph TT 600

1 Answer

I've just bought a 2001 Bonneville (not America) and it has flaking / melted paint around the filler cap. The bike is intermittenly missing a beat and has cut out a couple of times at low revs. Seems...


A good plan, but if the bike is already missing now and again, I would be tempted to strip and clean the carbs.
It would be worth cleaning the tank out as well.

Sep 10, 2010 | 2001 Triumph Triumph Bonneville

1 Answer

I have a 04 Triumph bonneville america, I just had the carbs rebuilt and it was hooked back up I was dumping fuel from the air box. Is it possible that the carbs valves are still not closing? I am kinda of...


it sounds like your float valve is not closing. It is possible some debris found its way to the valve preventing it from closing or the float level is improperly adjusted. sounds like you have to take the carb apart to clean it out.

Aug 23, 2010 | 2004 Triumph America

1 Answer

Where are the fuses on my 2004 triumph america?


Hi
They are in front of the ignition key. Pull off the little panel surrounding the ignition (from the bottom)

Ride safe
Bike-Doc
Please mark this as very helpful (if it has been!!)

May 04, 2010 | 2003 Triumph Bonneville America

2 Answers

Oil leak out of a breather hose


a small amount of oil from the crankcase vent hose under hard acceleration is most likely normal.American bikes don't leak oil,they mark their spot!

Sep 28, 2009 | 2004 Triumph America

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