Marzocchi Front Foirks - oil type and capacity

GT

Full member
Hi All,

What is the distance of travel that you should have on a Series 2 Jota Mazocchi Front fork? I have braided brake hoses and under braking they just touch the top of the oil cooler, taking the paint off.  They have a wider arc than the standard brake hose.

It might be time to change / top up the oil - if so, what weight oil and capacity please?

Apart from one at a time and pump to release air, anything else to worry about?

Regards
Glenn
 
I had a similar problem with my Jota 120 Glenn (same forks as you), the standard replacement hoses are a tad longer than they need be. I made a custom bracket to locate the the hoses further forward from the headstock and thus clear the oil cooler and use up a bit of the extra length.

I would imagine that there is not much wrong with your springs and oil (I could be wrong though).

When Phil Read test rode the Jota 120 in 1982 with these forks (on the race track) he commented that they were over-damped and under sprung, so my guess is use a light fork oil 5-10W and possibly use a stiffer spring or even progressive(I have standard I believe), although with the emulators that Keith fitted to my bike I cannot imagine much improvement to be had. It really is very good at the front indeed.
 
I've used a black plastic spiral wrap around the braided line to protect the painted items and I prefer the brake lines to be black...It can be put on without having to take the lines off.
 
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