20 Most Recent 2008 Triumph Triumph Bonneville - Page 5 Questions & Answers

Check battery for a full charge. Put on charger and bring to full charge. Put load tester on the battery, checking for weak or dead cell. Check charging system to ensure it is working properly.

484 cc

Hi, there are four adjustments that can be made to the concentric carburetor. The adjustments should be made in the following sequence with the engine at operating temperature. The bike should be in operating setup (i.e., Exhaust system installed, air cleaners installed, etc.).

• Adjust the Main Jet (Throttle at three-quarters to full open).
• Adjust the Pilot Jet. (Throttle up to one-eighth open)
• Adjust Throttle Cutaway. (Throttle one-eighth to one quarter open)
• Adjust Throttle Needle. (Throttle one-quarter to three-quarters open)
• Readjust the Pilot jet.

Hi realisticly its going to be expensive and 5000 is that us dollars or uk pounds ?
sounds very expensive when all your going to need initially is a good engine service a new set of tyres and maybe a chain and sprocket set and a check of the brakes what else is there on a bike?
theres getting it roadworthy and theres restoration to new which is very different

Hope fully you will find this site usefull. Unfortunately I don't fix bikes as new as yours. The newest I go is Triumph 6TA 650 Thunderbird 1959!

http://classic-motorbikes.net/manual-45-Replacement-Parts-Catalogue

Hi,

Take a very close look and you would discover that it goes in and not open end out.

So the answer is "In". the shaft goes in.

Good luck.

If you release everythng and spend some time with 20-50 oil filling the cable up with it. I suspect a strand of the bowden cable may have snapped inside the oter and oiling it should help to ease the problem.
A new cable should fix it permanantly.

Gaiters, I can assume you are referring to the rubber telescopic spring covers on each fork. There is only one way to change these I'm afraid and that means the forks have to come off the bike and come apart on the bench.Triumph never did anything easy! Take the oppurtunity to clean the forks,replace the oil seals and change the fork oil and inspect all the bits.(might as well) When installing the new gaiters the info I have says to use a light oil to help slip them into place by hand with an even pressure.No screwdrivers or pliers. Hope this has helped,nice to chat with another British fan,good luck with the job.Cheers

Oh, something is telling me to stay away from this one. It has been a long time since I messed with a vertical twin triumph.

The first thing to do is to check the points and timing. Check and reset the points first. Usually if no one has moved the plate, the timing comes right back into specs with the points gapped correctly. But, just to be on the safe side, check the timing once you get the points right.

Next is the carbs. Hopefully you aren't still running the original Amal carbs. The Bonneville had twin carbs and they need to be balanced pretty well. You need a carb syncronizing tool to do this with. It works off either manifold vacuum or air velocity through the venturi. You can play with the idle mixture screws and idle speed screws and maybe get it close. But, unless you are somewhat familiar with any of this advice, I'd look for someone with some experience to help you with the job. If you get the timing too far off or the carbs too lean, the Bonnevilles were terrible about burning pistons. We don't want that do we now. Good Luck, Steve

they two comments above me are right, you have two sets of fuses on your bike. one set is either near your handle bars or under your seat. the other set is basicaly relays under the back left of your bike, there you will find one regular fuse next to the relays which is for your ignition and starter. I would check that fuse almost certain it poped.

kiker cud hav internal issues or lubrication or mechanical concerns in engine-u need a rebuild and troublshoot manual

Did you use a Typanium Recitifier? There should be no problems unless it is a used one. All the new ones I havew used just "bolt on" .. there are 5 wires. Check to see if you don't have a grounded wire some where.. try it with the head light off.. I usually wire my bikes to start with no head light with a 3 way switch.. once running I can then turn the light on. Go through an check all your wires again, you might just have a bad connection somewhere.. here is an excellent site .. Jim http://www.raskcycle.com/techtip/webdoc16.html

hi use the keyway opp.the timming mark on both cams line up the two lines on the intermed. pinion with dot on crank pinion line exh.pinion with interm. pinion dot and if you have e3134 inlet cam line up to line on inter. pinion or standard cam use dot hope this helps Bill

charge the battery up and use jumper leads from a car ,if problem persists then its new starter motor ,because it could be the bendix pinion from your description ,but it might just be the battery not holding enough reserve amperage power to turn the starter motor hence the car jump start .

Oh, it's been a long time since I've messed with a pre-unit Triumph. Best as I can remember, the transmission was adjustable on it's mount on the frame. You loosened the inner primary bolts and the transmission mounting bolts. There was an adjuster mounted on the frame behind the transmission, I think.

I hope this helps. It's been a LONG time since I've seen one of those and I'm an OLD man with a questionable memory.

Good Luck
Steve

screwing the jets in makes it rich, they are usually 1-2 turns out,The problem may not be the carbs
check aircleaner, fuel filters, what did it run like before the new carbs?

You most likely have a float that needs adjusting. For my money, I leave this task to the pros. Get an estimate at three shops nearby so you get a good price. The only other thing you may have going on is some residual crud and lacquer buildup. For that I use Seafoam, a fuel additive that works wonders. IT is available at most auto parts stores. Joe

You will need the centering tool to align the new clutch. The manual says it's part T3880014. It says it is not essential but the job can take some time without it. Triumph recommend the use of an alignment tool (PN T3880014) for use when rebuilding the clutch. The tool is used to align the lifter plate with the hole in the transmission input shaft, thus enabling the pushrod seat to move freely in the shaft when the clutch lever is operated. The tool is not essential, although the installation procedure can take some time without it.
Not horribly definitive, but it sounds like you could replace plates and springs without the tool, according to Haynes. check out.this will help. thanks.

Get a Haynes Manual. I work on my own bikes with a Factory Manual, The Haynes or Clymer Manual and a Parts Book. If you are going to do your own work you need these books. Period.

http://www.themotorbookstore.com/trium65twin1.html

Here are some simple diagrams that give the basic idea of what works for the Typanium Rectifier set up.

http://www.raskcycle.com/techtip/webdoc10.html

Here is a good site for "Home Mechanics".. I love this site.. has some great Triumph stuff and repair info.

www.jockeyjournal.com

Jim

This is a technically challenging task even if you have the calibrated vacuum gages and the know how to use them. Please see your motorcycle shop and have them balance the carbs on your Bonneville for optimum results.

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