Uni-trak
Posted: Mon Dec 19, 2011 1:40 am
Well, I must come clean and admit that I don't know, and can't find out, what 'Uni-Trak' or 'Uni-track' means.
My trike has a KZ1100 engine with a head that has 38mm diameter inlet valves and I am advised that this head must be from a Uni-trak. The head doesn't have counterbores for O-rings between it and the barrel.
The engine number on the crankcase suggests an A1 1100 shaft 1981.
Was the Uni-trac an 1100 GPz model made from about 1982?
Why 'uni'? Does it have a single rear swinging arm?
If not, what does it have only one of, to make it a 'uni'? A single suspension unit placed on the centre-line? Did they do this in the early 1980's?
I would like to know a bit about the Uni-trac engine: what extra power or torque the 1mm on the inlets produced, if any, and whether it was generally a better-breathing engine. Perhaps it was fuel injected.
Perhaps I should try to identify the camshafts to see whether they came with the head. Presumably I would have to do this with a timing disc, or are there identifying marks on the shafts? Perhaps just mic across the lobes?
The inlet bores and those of the carbs are standard according to the manual, although the main jets are 132.5 instead of 120.
Advice welcomed, as usual.
Thanks.
My trike has a KZ1100 engine with a head that has 38mm diameter inlet valves and I am advised that this head must be from a Uni-trak. The head doesn't have counterbores for O-rings between it and the barrel.
The engine number on the crankcase suggests an A1 1100 shaft 1981.
Was the Uni-trac an 1100 GPz model made from about 1982?
Why 'uni'? Does it have a single rear swinging arm?
If not, what does it have only one of, to make it a 'uni'? A single suspension unit placed on the centre-line? Did they do this in the early 1980's?
I would like to know a bit about the Uni-trac engine: what extra power or torque the 1mm on the inlets produced, if any, and whether it was generally a better-breathing engine. Perhaps it was fuel injected.
Perhaps I should try to identify the camshafts to see whether they came with the head. Presumably I would have to do this with a timing disc, or are there identifying marks on the shafts? Perhaps just mic across the lobes?
The inlet bores and those of the carbs are standard according to the manual, although the main jets are 132.5 instead of 120.
Advice welcomed, as usual.
Thanks.
