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1972 Triumph Bonneville misfiring - Triumph Motorcycles

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  • Triumph Master
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Check plugs, points, condenser etc.

Posted on May 23, 2019

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6 Suggested Answers

6ya6ya

6ya staff

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Hi there,
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Posted on Jan 02, 2017

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Anonymous

  • 6 Answers

SOURCE: Triumph Bonneville America 2002, misfires for

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?

Posted on Aug 06, 2009

bloarch666

Derk Williams

  • 18 Answers

SOURCE: 1972 triumph bonneville flooding out and running

PULL THE FLOAT BOWLS AND CHECK YOUR NEEDLE VALVES AND FLOAT LEVELS... GOOD LUCK!

Posted on Jul 28, 2011

awheaty

  • 8 Answers

SOURCE: can i fuell inject my 2001 triumph bonneville

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.

Posted on Jan 16, 2012

Mark Mc Nevin

  • 12 Answers

SOURCE: Dear Support Manager, I have a 1972 triumph

First check the valve clearances. Check/adjust these when the engine is cold - .004' inlet and .006' for exhaust, don't be too fussy any clearance is better than no clearance! Next you should check compression for both cylinders, they should be within 10% of each other. Assuming you have the original points set-up these too can 'adjust' out of tolerance when they get warm. Keep in mind the bike is 41 years old and may need more frequent tlc, best o luck.

Posted on Mar 25, 2013

Bill Boyd

  • 53755 Answers

SOURCE: I would like to know if Triumph 650 conrods are the same size as 750 rods, as Iam doing up the old 1972 triumph 650 tiger tr6r.

what alters the engine capacity is stroke length or piston diameter ( not conrod length)
what you will be checking is bearing size and conrod pin size to check for changes

Posted on Apr 09, 2017

Testimonial: "Thanks Bill, I will do that mate. Have a good day buddy."

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What were the three main problems triumph motorcycles had in the early60s? @


Hi, Tony the answer to this question is way above my pay grade for this situation, I would call or visit my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
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Hi, Haydyn for this scenario you will need your service manual that has all fastener torque specs and a wiring diagram on the back pages, parts fiche, and owners manual if you can't find the best tool you ever bought for your Triumph, despair not, for a mere $41 you can download another one.
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My 2003 triumph boniville America misfire on left bank when warm any idieas


carbs need adjusting for vacuum alignment replace the spark plug on that side and make sure the wire doesn't begin to short out when hot?

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2012 Triumph Bonneville T100 wiring diagram


Hi, Anonymous for this scenario you will need your service manual that has all fastener torque specs and a wiring diagram on the back pages, parts fiche, and owners manual if you can't find the best tool you ever bought for your Triumph, despair not, for a mere $15 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
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Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

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1 Answer

Dear Support Manager, I have a 1972 triumph


First check the valve clearances. Check/adjust these when the engine is cold - .004' inlet and .006' for exhaust, don't be too fussy any clearance is better than no clearance! Next you should check compression for both cylinders, they should be within 10% of each other. Assuming you have the original points set-up these too can 'adjust' out of tolerance when they get warm. Keep in mind the bike is 41 years old and may need more frequent tlc, best o luck.

Mar 25, 2013 | Motorcycles

1 Answer

1972 triumph bonneville flooding out and running to rich


PULL THE FLOAT BOWLS AND CHECK YOUR NEEDLE VALVES AND FLOAT LEVELS... GOOD LUCK!

Jul 28, 2011 | Triumph Bonneville Motorcycles

2 Answers

What type of spark plug does a 1971 triumph bonneville take?


NGK B8ES
Champion N3
Lodge HLN
KLG FE100
All have 14mm thread diameter & 3/4" reach
Gap is 0.025" (0.64mm)

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

May 01, 2010 | 1972 Triumph T 100 R

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Oops its a 1962 t100a loking for asembly diagram for front legs seals bushes etc hayns manual very poor on front end discription


the one that I have is called vintage motorcycle repair manual...there are also Triumph formums on the web that may steer you in the right direction to get a free diagram... good luck (I sure miss my bonneville)

Nov 06, 2009 | 1972 Triumph T 100 R

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

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