Why use Jota Pistons?

the good news is you are in for a treat when you give it the beans jotas will rev way past 8 and take it all day, i did a head for a guy in the summer just gone and he never took his bike over 70mph. so i told him that the bike will respond and run better if you rev it, and boy was he impressed.
don't mean thrash it to within an inch of its live but rev it though and the bike will go .
safe riding andy
 
(standard rods won't like that) that old chessnut must sell my laverdas as they won't take any riding because the rods won't take it , the cam blocks crumble the wheels are haevy the brakes are shit and so on and on and on and on yyyyyyyaaaaaaaarrrrrrrrrnnnnnnn
 
My standard advice:

Leave your lovely old Laverda exactly as God or Roger (same thing?) intended and simply enjoy it as such. The best way to go considerably quicker is to also buy a cheap piece of modern Japanese sh1t for virtually nothing that will do virtually everything better than your Laverda ever can or will, except being a Laverda.... 

Same applies to the bevel Dukes which can be made to go a bit quicker, for a short time! Spectacularly sudden death though when they do let go; unlike the big old Laverda engine which heroically struggles on before simply grinding to a smelly, oily and very sad ending.

 
I must say allthough I enjoy the punch of my bikes, I enjoy the handling improvement even more... I upgraded the front, the rear suspension, the brakes and the rims and the difference is remarkable.

Still, a 750 S Formula from 2000 beats the Jota in any way, except for the sound maybe...  ;)
 
On my Jota I actually have RGS barrels and pistons and head though with 4c cams and Jota exhaust..yes Grant the nice black chrome one from Malcolm! I don't really notice the difference front the original or replacement JE Jota pistons.  I think having a good head on the engine and modern ignition and sorted carbs more than make up for that.
 
I see. Not interested in trying to make the bike faster, just trying to make a Jarota, since the bike has all the other bits from that Jarama conversion. Right side shift, Jota bars, Malcolm's jota pipes and collector, 4/C cams with vernier drilled cam wheels, restored and tuned carbs, airbox airfilter factory rearsets and Race Tech suspension. I even found a grab rail. Mostly I am in it for the sound and the removal of my fillings. The bike is going to be restored except for the paint on the bodywork and wheels because I like the green color on silver wheels and it is saving me a little money keeping it that way.

As of today the Jota pistons are being considered as part of the update since they will drop in.
 
I don't think there was a mention of a modern ignition system there? Granted they are pricey...but I wish I had done it before corroded pickups induced pre ignition  resulting in a melted piston...
 
Hi Bob,

My '77 Jarama (#6003, pretty close to yours) has been Jota-ized with Mondial Jota pistons, Jota exhaust and an Axtell cam. Witt ignition too. I was told there were two CRs for those pistons, and these are supposed to be the lower CR of the two. I've ridden it quite a bit in recent years, including a 3000-mile road trip to Wolfgang's a few years ago. I've always used high-test (91 octane around here) but never any additives, and I've never had any issues with fuel. I do use ethanol-free gas (91 octane) much of the time, as there is a local station that sells it. The engine has been just fine. The higher compression makes up to some extent for the fact that most of my riding is done at relatively high elevations, usually 5000-9000 feet above sea level, but I just had the bike in southern Arizona for some riding at elevations as low as 2000 feet and it ran fine without changing anything. Obviously it was on the lean side down there and it's on the rich side when I get up in the Rockies, but it has never given any signs of distress. It'll be a fine ride whatever you do, but I don't think the Jota pistons are not going to complicate your life in any way.
 
Wolfgang is in the lead, but I have one more source that has NOS 75s (think 4 leaf clover) and Wolfgang has not validated the size of the pistons he has yet. Tic Toc- thanks goodness I have other bikes to ride cuz it's warm in Chicago. Like 65 degrees in February. OOf.
 
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