Hi,
Just recently put my CB350 K1 together for the first time. When I bought it it was all tore down and delivered in boxes, so I've never started it before. Hasn't been running since the 80's is my guess. Total restoration has been done, every single part and screw in the engine has been inspected and cleaned or exchanged. First start-up ever this weekend! And it started easily, what a relief! All good to that point.
I had the oil inspection screw (in the top, left side) out to see if the oil was coming up, but so far nothing! I've had the bike running for a few minutes up till about 3,5k rpm, and even a short ride around the block. Nothing comes out. Is that the wrong way of doing it, should I leave to bolt in when riding and then afterwards remove it (while running the engine) to allow pressure to build up? Or will it work either how?
When I first realized that this might be a problem, I poured some oil into the top end through the valve adjusting holes to be sure to have at least some lubrication in there. I hope this helps through this testing period..
- I have tested to kick the engine over with the right side oil filter cover off. Oil is pumping out of the lower hole. If I put my thumb over it when kicking, it easily moves my thumb out of its way, so I assume the pump isn't all done at least.
- I have blown compressed air through the upper hole at the oil filter, and seen that if I put a dab of oil in the inspection hole in the top, the compressed air will blow it away. So it seems like the oil passage(s) up to the top isn't clogged (at least not fully).
But there is one thing that makes me wonder. The upper hole at the oil filter is all dry. Of course the oil will fall back into the oil filter (or wherever it goes), but shouldn't there at least some residue of oil in this hole when I open it up? Could there be some problem with the oil filter cover? It seems fine to me, the spring is in good condition and the parts move freely. Or why wouldn't the oil leave the oil filter and travel up the engine?
Thank you for your thoughts in this,
Tobias
Just recently put my CB350 K1 together for the first time. When I bought it it was all tore down and delivered in boxes, so I've never started it before. Hasn't been running since the 80's is my guess. Total restoration has been done, every single part and screw in the engine has been inspected and cleaned or exchanged. First start-up ever this weekend! And it started easily, what a relief! All good to that point.
I had the oil inspection screw (in the top, left side) out to see if the oil was coming up, but so far nothing! I've had the bike running for a few minutes up till about 3,5k rpm, and even a short ride around the block. Nothing comes out. Is that the wrong way of doing it, should I leave to bolt in when riding and then afterwards remove it (while running the engine) to allow pressure to build up? Or will it work either how?
When I first realized that this might be a problem, I poured some oil into the top end through the valve adjusting holes to be sure to have at least some lubrication in there. I hope this helps through this testing period..
- I have tested to kick the engine over with the right side oil filter cover off. Oil is pumping out of the lower hole. If I put my thumb over it when kicking, it easily moves my thumb out of its way, so I assume the pump isn't all done at least.
- I have blown compressed air through the upper hole at the oil filter, and seen that if I put a dab of oil in the inspection hole in the top, the compressed air will blow it away. So it seems like the oil passage(s) up to the top isn't clogged (at least not fully).
But there is one thing that makes me wonder. The upper hole at the oil filter is all dry. Of course the oil will fall back into the oil filter (or wherever it goes), but shouldn't there at least some residue of oil in this hole when I open it up? Could there be some problem with the oil filter cover? It seems fine to me, the spring is in good condition and the parts move freely. Or why wouldn't the oil leave the oil filter and travel up the engine?
Thank you for your thoughts in this,
Tobias