I had mine engine rebuild so i can just go for the unleaded
98 octane fue
I think if u have an old engine it's better to get leaded fuel.
That doesn't exist any more .
Mine engine was a 1300 cc AS 41 block
Now it got a 1600 cc cylinder set that u can place without any modification.
Its crankshaft is balanced with a lighter flywheel.
I also got an angleW camshaft in it with 278' degrees i believe
for more power below and midrange
The camshaft followers are replaced by hvy duty ones also
I thrown away the airfilter and replaced it with a K&N one
The engine is a joy now and runs very smooth
about 60 hps
l