Question about Triumph Thunderbird Motorcycles

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2003 triumph thunderbird 900. starts good and idles ok at about a 1000 rpm. problem is even with the clutch in put bike in first and bike stalls

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Posted on Jan 02, 2017

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SOURCE: Triumph TT600 stalls during deceleration

under your air box on left side is kind of a round canister pretty small called stepper motor has 4 vacuum lines one from each carb annd 3/8 hose that runs up to air box usually 3/8 hose comes loose or falls off has to have good seal you can tell if its working look in from left side of bike through fairing when idling should see four vacuum lines pulsing if not check 3/8 hose and vacuum lines if all are intacked its probably the stepper motor they are two peice has teflon piston inside if bike ever went down oil goes int airbox down 3/8 hose into it and gumms it up run about $50

Posted on Apr 21, 2009

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SOURCE: clutch engaged engine stalls 2003 Suzuki GSX-R 1000

The bike has a sidestand interlock that prevents you from riding away with the kickstand down. That interlock is not functioning properly. Could have been bent or moved, unplugged, or perhaps the relay has failed. If physically activating the switch does not work, and connecting the wires with a jumper does not work start looking at the turn signal relay, some bikes have that circuit integrated into the relay.

Posted on Apr 25, 2009

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SOURCE: Triumph Adventurer 900 goes bang and stalls when put in gear!

is it three cylinder

Posted on Jul 14, 2009

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1 Answer

Getting clutch

Have you changed the cable? it sounds like its been stretched a little

Dec 08, 2013 | Triumph America Motorcycles

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I have a similar problem with mine, but the drop from three to two cylinders only happens when moisture gets into the tach -- the tach itself has been jumping around for years and I pretty much ignored it until now that I'm having the problem. The Tach is connected to a coil, and the moisture appears to short the circuit, preventing the cylinder from firing properly. Perhaps other problems with your tach are causing similar problems with the coil, even in dry weather? I just ordered a new Tach from after shopping around for a while. There may be some aftermarket alternatives for less, but I'm in a hurry to get my bike running again for a charity event, and don't have enough time to look into aftermarket parts and hope they work. I hope this helps -- good luck with yours.

Apr 13, 2013 | 1996 Triumph Triumph Thunderbird

1 Answer

My 1996 Triumph Thunderbird pops through the carbs and stalls

Hi 2wheelsup, you are probably sucking through a faulty intake manifold and for more information about your question please visit the website below. Good luck and have a nice day.

Jan 17, 2011 | 1996 Triumph Triumph Thunderbird

1 Answer

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Check fuel filter and air filter, then spark plugs, not necessarily in that order.

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1 Answer

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hi mate make sure you have put the correct amount of oil in and to check the plugs take the plug out and put it against the engine with it still connected and turn the engine over if it sparks ok then there fine if you want to go more technical get a feeler guage and adjust the cap on the plug to the manuals requirements good luck

Aug 07, 2009 | 2001 Triumph Triumph Thunderbird

1 Answer

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Rpm's should be about 900-1000
Timing is 10% if standard
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The only times my 'dent had no acceleration, it wasn't firing on all 3. Easy check: start the bike, let it idle for a couple minutes, spray water from a spray bottle on each header. Chances are, there'll be a cold header from a cylinder not firing due to a bad coil.

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