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Troubleshoot ignition 06 Triumph America

Backfiring on right side...blew out airbox

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Posted on Jan 02, 2017

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SOURCE: Triumph America 2007 battery and ignition problem

Hi and welcome to FixYa,

Initially, the click is significant as it indicates that the starter relay is engaging (hence the click) but the contacts are not switching (hence no starter spin). To confirm, temporarily jumper the 2 big terminals of the starter relay. To locate the starter relay, follow the cable from the battery's + terminal.

Offhand, no headlight would require tracing where the headlight +12 is missing using a testlight rather than a voltmeter.

Good luck and thank you for asking FixYa.

Posted on Dec 06, 2009

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SOURCE: my triumph bonneville 2005 america has just

Just a very quick check,Swap the sparkplugs over.Don't put in new ones.If the problem follows that plug,it is only the sparkplug.Hope you get it fixed

Posted on Nov 17, 2009

  • 2702 Answers

SOURCE: can't tune throttle bodies on 2008 triumph america

there is an easy way to do this,,,take off the throttle bodies,,,
place a lenth of thin strate whire into both throttel bodies and gentely close the throttles on this whire,,, the butter flys should just tuch very gentely both bits of whire if not adjust the butter flyes till both bits of whire fall out under there own weight,,,and then its bingo,,, job done!!!
you will still need to balance the air intake on the trottel bodies
so set the tick over up right,,, then holding the reves at say 2000rpm set the air intake bypass air up on the throttel bodies,,,recheck that at tick over again,,,,, i hope you under stand what iv told you to do,,it works ok,
good luck,, was this any help to you?

Posted on Jun 26, 2010

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1 Answer

Backfire louldly on deceleration

One of the carburetors could be sucking in air through the vacuum port. Had a similar issue on a thruxton. Triumph puts a rubber cover on them. Sometimes the rubber cracks and sometimes the covers just fall off.

Nov 18, 2013 | 2002 Triumph Bonneville America

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Why would my 2008 triumph bonneville america backfire through the exhaust?

timing chain out of alignment, valves lash not set correctly, carb flooding the intake , float bowl set too high/not closing properly, choke set on too much auto choke not plugged in...

Feb 01, 2013 | 2003 Triumph Bonneville America

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2006 triumph america cuts out, seems to lose power, run on 1 cylinder, have had 20,000 major service, carb serviced, tank checked (no debris). Cold, warm, or after rideing hard the problem can crop up

IT sounds like fuel starvation has it got a vacume petrol tap if so it could be that not letting petrol through sometimes or the vacume pipe is split or kinked or squashed

Dec 10, 2011 | 2006 Triumph America

1 Answer

Is loud backfiring a carb problem ?

It could need carb adjust.
If you or someone else adjusted the air/fuel screw on it.
Also altitude change can affect it to a degree.
Also if your ignition timining (when the spark plug sparks) is off.

If it is making the "backfire" sound out the exhaust then it's actually "afterfire"
"Backfire is when it actually makes that noise going out the intake side.
If it does that going out your intake side you probably have a mechanical problem (timing).

Jan 07, 2011 | 2003 Triumph Bonneville America

2 Answers

Fuel pressure valve hose fell apart while removing tank , can not find out where it hooks up from .

It hooks up to the airbox, right side when viewed from the rider's position. the fitting is on the underside of the airbox, right behind the vent hose.

Dec 07, 2010 | 2000 Triumph 955i Speed triple

1 Answer

Where are the fuses on my 2004 triumph america?

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

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

May 04, 2010 | 2003 Triumph Bonneville America

1 Answer

I have a 2004 triumph America and the blinkers stopped working. Where do I find the fuses?

the fuses are behind the plastic cover which is covering the ignition switch.
It looks like it shouldn't come off but it does and reveals all the fuses!


May 04, 2010 | 2002 Triumph Bonneville America

1 Answer

Triumph Bonneville America 2002, misfires for first 10 miles or so, then suddenly clears and runs well. Appears to be running on one cylinder.

is it electronic ignition? - if so, the ignition heat sink unit may be gone...should be s omehwere on the underside of the tank shroud. do you have a manual for it?

Aug 06, 2009 | 2002 Triumph Triumph Bonneville

1 Answer

The engine back fires on the right side

Triumphs have a habbit of the ignition coils failing past a certian age. Switch the coils around and see if the backfires transfer with coil.

May 24, 2009 | 2008 Triumph Speedmaster

1 Answer


My '06 Bonneville America also often emits a single, very quiet backfire right after I turn it off. It doesn't do it every time, but approximately half the time. As with yours it runs beautifully and, therefore, hasn't been of concern.

Nov 10, 2008 | 2003 Triumph Bonneville America

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