Tweet
Hey folks,
First time I have had the chance to run and bring my ’79 SF to operating temperature since working on it all summer. Carbs rebuilt and vacuumed sync’d, timing adjusted, new plugs and oil and filter and she fired up and was running awesome. While the bike’s been sitting well over a year, it purred like a kitten at idle and hauled when I gave it a bit. However, I did notice some blue smoke coming from all the cylinders when rev’d up where the smoke eventually cleared up on cylinders 1 and 2 after a short 2 km ride. No insurance and it’s about to snow up here so I kept it short. The other cylinders 3 and 4 still blow some blue. Should I be concerned or should I give it a bit more time and go on a real ride. I would hate to have to do a ring job … I just want to ride come spring. Is it likely that the rings haven’t set yet or something like that given the length of time the bike sat and are allowing some short-lived blow-by? I did not do a compression test, but there’s only 40,000 original kms (24,000 miles) on the engine. Any thoughts?
Dan
First time I have had the chance to run and bring my ’79 SF to operating temperature since working on it all summer. Carbs rebuilt and vacuumed sync’d, timing adjusted, new plugs and oil and filter and she fired up and was running awesome. While the bike’s been sitting well over a year, it purred like a kitten at idle and hauled when I gave it a bit. However, I did notice some blue smoke coming from all the cylinders when rev’d up where the smoke eventually cleared up on cylinders 1 and 2 after a short 2 km ride. No insurance and it’s about to snow up here so I kept it short. The other cylinders 3 and 4 still blow some blue. Should I be concerned or should I give it a bit more time and go on a real ride. I would hate to have to do a ring job … I just want to ride come spring. Is it likely that the rings haven’t set yet or something like that given the length of time the bike sat and are allowing some short-lived blow-by? I did not do a compression test, but there’s only 40,000 original kms (24,000 miles) on the engine. Any thoughts?
Dan
Comment