No oil to left rocker

[Flyboy6]

I have what I think are two related issues. A ‘chuff’ noise at low rpm from number two carb (Valkyrie 1500 with 6 carbs) which I think may be from a stuck or poorly seated intake valve. On investigating this I see very little oil in the left rocker cover. When I crank briefly with starter a good oil surge comes to right rocker, none to left side. I’m thinking this contributes to perhaps a stuck or sticky intake valve on that side.

Advice on oil passages to left rocker? Under the cam?

Advice on what I think is an induction leak? (Boot to carb is solid, carb diaphragm is good.). When I pull this boot off and crank, no ‘chuff’, making me think it is an exhaust pulse coming back into the carb through an open intake valve on the exhaust cycle.

[Sadanorakman]

Sounds horrendous to be honest. It doesn't take much oil starvation for very long to cause some real significant damage. I just hope you caught it in time to stop any metal on metal contact.

Good luck with your endeavours.

[Flyboy6]

Thanks, and I did. Pulled the head and found a piece of gasket debris blocking the oil orifice. No indications of bad wear and all the lobes mic’d in spec. No idea how that got past screen, pump, etc.

Unfortunately I made a boneheaded move pulling the head and bent some valve stems. So, new valves, seals, lapped in, and everything running tickety boo.

Chuff noise was easier - Small vacuum line coming off the number two carb runner. Very difficult to spot but once reconnected solved the problem. If not for that odd noise I probably wouldn’t have gone chasing inside the rockers and would not have picked up the oil starvation and would’ve ended up with a bad situation