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you may find the two nuts and bolts that hold it in place are loose. this has happened to me a couple of times, so now I run a spanner over them every oil change and all good

miler per gallon varies a lot with these bikes short trips of a few miles then restarting a cold engine and another few miles they guzzle. if they havent been ridden often they guzzle, probably due to some fuel evaporation long steady rides they are ok in US gallons per mile mine ranges from...

I would have thought if it was idling ok but wouldnt rev that is carb/fuel related, not spark but now that you have fiddled with the pick up coil and there is no spark complicates things. from memory the air gap for the pickup should be 0.8mm, about the thickness of a credit card

the last time the bulb blew on mine, I just flicked it to hi beam until such time that a new bulb was purchased it wasnt a problem with blinding incoming traffic as the Bonnie headlamp was shit anyway, hi-beam was like most other bikes lo-beam, until I upgraded the loom to a easten beaver relay...

Silkolene Comp 4 15w-50, bike is at 130,000 Kilometers with no problems and still runs well http://www.silkolene.com/motorcycle/...p-4-15w-50-xp/ started off with Silkolene 10w-40 but after about 50k and due to fairly hot summers here, went to 20w50, but it felt a bit stiff with the gear...

your throttle cables may need adjusting, pretty easy to do. amazing the difference between bikes of the same model all down to how the cables are adjusted

The ground terminal is right under and at the rear of the engine connected to one of the crankcase bolts. its near where the tube for collecting crank case oil out of the airbox dangles

not sure what I'm looking at with the first picture, but with the second it shows the tab washer bent over the nut for keeping the primary sprocket in place. this is correct as it prevents the nut from loosening not sure why it would turn off after idling for a while. is it after it has been...

for me a couple of years back it was new Cibie headlight. made out of proper metal and glass with a decent reflector rather than the miserable plastic stock globe, that also was burnt where the H4 bulb fits in. a Hella globe would just be as good, then I bought a relay kit from...

dont know about the header pipes, but Staintune have just announced after market mufflers for the 1200

welcome and anything you need to know about your bike just ask. plenty of knowledge on this forum

well I have the Arai Phil Read replica, same as bluesforchallah, plus one of the Bell 500 Scratch open face helmets the Arai has been the most comfy helmet I've worn for years and the Bell is great for short summer trips

the header pipes on my Bonnie are now well beyond blue, more like burnt surface rust along the front, so header wrap looks like the easiest option for mine

I had to replace my Regulator Rectifier early this year as was not getting full charge to the battery and at first thought it was just a flat battery even though only a year old. eventually found that the old RR was delivering less than 12 Volts at 1200 RPM plus. bought a new one from Ricks and...

first thing is to clean the battery posts. maybe something as simple as a poor connection

blue is the new black

good advice as found my Dart screen did mark the headlamp brackets. I only use it for long distance tours, but it is easy to fit and doing the above the headlamp remains aimed ok

'96- '06 Jeep Wranglers have the exact same size and spec headlight globe as Triumph Bonnies and Thruxtons but the US Wranglers suffer from what is known as shit headlights and a common upgrade is to discard the stock sealed beam globes and fit Hella or Cibie globes with H4 bulbs, oddly...

AFIK oil temperature can reach up to 270 F oil flows thru the heat exchanger all the time, no thermostat, but best not to let the engine idle for extended periods, like over 20 minutes see this http://www.newbonnevilleriders.com/forum/showthread.php?t=10673 but as long as you remain moving...

managed to reduce the image even smaller here it is

that link is for an efi set up and when I put in model years for carb still show efi throttle bodies. but, I checked out some other diagrams here http://www.triumphestore.com/ and still cant make heads or tails out of it the link for the vent hose is a good write up, pity Mr F doesn't post here...

could also be the vent tube for the carbs. from memory it connects to the carbs in the centre somewhere between both and winds its way behind down along the left side and terminates behind the gear shift peddle back behind the footpeg. its purpose is to keep the float bowls vented to atmosphere...

just found this.. fantastic work, really enjoyed it and years ago I spent time in Japan for work. found the people very welcoming and the place was amazing. an experience I am most grateful for

from memory I used hi temp silicon