classic motorcycle forum
Motorcycle Discussions => British Bikes => Topic started by: ramwing7 on June 02, 2021, 09:48:26 PM
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I recently purchased a 1973 Triumph Bonneville T140V for restoration.
Guy I bought it from said it didn't have an ignition key, which was ok, but on further examination it doesn't have a ignition lock either. It has the wrong front fork and some other missing pieces, so my question is; If it had an ignition switch, where was it mounted when it left the factory?
Thanks.
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It has the wrong front fork and some other missing pieces, so my question is; If it had an ignition switch, where was it mounted when it left the factory?
In the left-hand headlamp bracket. The fork being wrong probably explains why it isn't there.
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So what is the current (hoho) method for starting and stopping the engine, or is the whole loom missing?
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Left headlamp bracket? I don't have one of those, so I guess that explains it.
Not sure how they stopped the poor thing. Only heard running on starter fluid. When fluid stopped, engine stopped. ;D
I suspect I'm gonna have to go the new wiring loom route. There's some sort of mess there, but it looks like it might be impossible to sort out.
Thanks, folks.
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Yebbut even on starter fluid it still needed a spark, so somewhere the ignition circuit was made before it could run.
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My '73 T100R Daytona sat for a year while I was involved in other projects. When I got back to it, I could not start the bike, even with a new battery. But I had spark -- the bike would fire on starter fluid but immediately die. Fuel flow into carbs appeared to be fine. I pulled off both carbs, dismantled them, and did a full cleaning, and noted that in both carbs the pilot jet was severely blocked -- took a lot of soaking in carb cleaner, plus running a #10 guitar string into the air pilot screw hole to remove the blockage (I know some advise against the latter, but it was the only way I could clear the blockage, as revealed by free flow of compressed air through the passages). While i had the carbs apart I replaced the needle jets and the float pins. Upon reassembly, I now have first-kick starting every time.