Quote:
Originally Posted by Jolly5TA
Hello,
I have come to a new chapter in my adventures with the shed-fresh 1962 5TA Speed Twin: Getting it to run properly.
I have rewired it and everything works although chargin seems to be on the weak side.
And then there's the engine. I get the following:
- Starts fairly easily after tickelof the monobloc and giving it a little throttle.
- Will not idle even when it gets warm
- Will not rev but sputters and dies when I give it more than 1/3 throttle
- Tonight when I started it I could see that after a few minutes the head pipes got deep red and it seemed like the engine started to get really hot.
I have cleaned the carb but the gas is not as fresh as could be.. but does that keep it from revving? I havent looked at ignition timing yet as I'm a little puzzled by the 1-breaker distributor ignition.
Does any of you triumph wizards have any good advice on where to start in this situation?
thanks!
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Jolly,
Start with what you have not checked, and that is Timing. The one
breaker is just like the set that a car has. One set of breakers
controling more than one cylinder. Here is the problem with that
system. You can only get an average time set up between the
two cylinders. With a twin point set up you can time each cylinder.
So in your case try to get the best average you can on timing
and make sure the advance plate is work right.
Then back to the carburators. And fresh fuel is the way to go here
as well. Just make sure every passage is cleaned out. The 1/3
throttle problem would lean towards something to do with the needle
jet and needle. Either being set wrong or gummed up.
A good a place as any to start. But before you run to the shop.
Lets touch on charging for a moment. You need to get a good
charge going as this will effect the entire ignition system and the
condition of the spark. Since the machine has been sitting for
awhile, you may get lucky and it just might be a weak set of
magnets not producing enough of a field for the stator.
Pookybear
Linear Mode
