Is that bottom of the sleeve knocked in a little , with a crack going up to the right , or is it just casting flash ?
If its not on the thrust face , may be possible to ignor it . Slot cuttout rod clearance ? Looks pretty clean inside .
Can pay to overhaul to service specs , i.e. replace only essential parts worn past limits . Rather than the better than new ' race spec ' .
The pistons look pretty clean . No scuffing or scouring . Slotted behind oil ring generally 6.000 rpm max .
years back a bloke on a farm tried to sell me new chains and other spares he'd bought for the Atlas he'd bought new .
He'd used it for a few years , and toured Europe for a few years . No Bothers . Said over 90 mph the bars twanged with vibes,
so he generally kept to 80 mph , though he'd done 90 mph for a few hours a number of times without looseing any components .
I think he'd ridden it down to Singapore , and sold it after a few years in N.Z. as there wernt service agents in the boondocks .
Any chance of a few pictures . Barrels Inverted , from front , and rear . to suss the spiggots. ? thanks .