No oil to left rocker


Information and questions on GL1500 Goldwings (1988-2000)
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Flyboy6
Posts: 73
Joined: Mon Nov 17, 2014 10:04 am
Location: Toronto Ontario
Motorcycle: 1983GL650i
1983 Aspencade
1997 Valkyrie
1966 Cessna 172

No oil to left rocker

Post by 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.


Toronto Ontario
83 Aspencade
83 GL650i
1997 Valkyrie 1500 Tourer
1966 Cessna
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Sadanorakman
Posts: 491
Joined: Tue Sep 19, 2017 1:42 pm
Location: Midlands, ENGLAND
Motorcycle: 2000 GL1500 SE (Blue)
1991 GL1500 SE (Gold)

Re: No oil to left rocker

Post by 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.
Measure twice, cut once.
User avatar
Flyboy6
Posts: 73
Joined: Mon Nov 17, 2014 10:04 am
Location: Toronto Ontario
Motorcycle: 1983GL650i
1983 Aspencade
1997 Valkyrie
1966 Cessna 172

Re: No oil to left rocker

Post by 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
Toronto Ontario
83 Aspencade
83 GL650i
1997 Valkyrie 1500 Tourer
1966 Cessna
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