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That gasket failure definitely points to more than “normal wear” — reused gasket and/or uneven torque would be high on my suspect list too. On these twins it’s worth checking the head and cylinder deck with a straight edge before doing anything else, especially around the cam chain tunnel and...

Thanks for posting these here first, Doug. That 84mm spacing is handy for a lot of rear brake swaps, so these should be useful to someone building or upgrading. If you can, toss up a couple clear photos of each caliper and the pad side — it’ll help buyers judge condition quickly. Also worth...

Yep, that sounds right. Those vent lines should just route downward and stay open to atmosphere — don’t cap them or hook them to vacuum. If they’re blocked, the bowls won’t vent properly and it can cause fuel starvation or weird running issues. For reassembly, I’d also double-check the actual...

Makes sense — for race motors, having a complete B engine and enough spares on the shelf is a lot less painful than hunting parts after something lets go. Since you’re working with 175 sloper cases, that should make it easier for folks to sort through what they’ve got. If anyone has loose...