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Tech. Advice: Series 'A' 500cc/1000cc Bikes
Series A starting procedure
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<blockquote data-quote="greg brillus" data-source="post: 85900" data-attributes="member: 597"><p>I don't think there is anything special to look at other than get busy with a decent oil can. Remove some of the inspection covers and perhaps some of the feed pipes and prime them using the oil can with some short pieces of flexible fuel line of different sizes to force oil into these fittings. Make sure there is about a half a cup of clean oil on the bottom of the crankcase so the scavenge pump can start returning oil quickly. It would be nice to get some oil flow over the cams/ followers if you can but that might mean sliding the pushrod tubes down so you can squirt some in from the top of each tube. Put some fresh oil into the oil tank so it can bleed its way down to the pump, so the pump is not running/turning dry. Remove the small 3/16 BSW screw in the center of the brass oil quill towards the bottom of the pump and force some oil into the crank mainshaft which will feed the big end rollers. I would also remove the spark plug, put the bike in top gear and get someone to slowly spin the back wheel as you pump oil into this quill, as this will spread oil through the big end more evenly. I believe the tappets are set in a similar way to the post war engines, where the pushrods should spin freely with perhaps the tiniest amount of upward/downward movement. There is no benefit to having tight tappets at all, and a slightly loose tappet never did any harm. Cheers and good luck..............Greg.</p></blockquote><p></p>
[QUOTE="greg brillus, post: 85900, member: 597"] I don't think there is anything special to look at other than get busy with a decent oil can. Remove some of the inspection covers and perhaps some of the feed pipes and prime them using the oil can with some short pieces of flexible fuel line of different sizes to force oil into these fittings. Make sure there is about a half a cup of clean oil on the bottom of the crankcase so the scavenge pump can start returning oil quickly. It would be nice to get some oil flow over the cams/ followers if you can but that might mean sliding the pushrod tubes down so you can squirt some in from the top of each tube. Put some fresh oil into the oil tank so it can bleed its way down to the pump, so the pump is not running/turning dry. Remove the small 3/16 BSW screw in the center of the brass oil quill towards the bottom of the pump and force some oil into the crank mainshaft which will feed the big end rollers. I would also remove the spark plug, put the bike in top gear and get someone to slowly spin the back wheel as you pump oil into this quill, as this will spread oil through the big end more evenly. I believe the tappets are set in a similar way to the post war engines, where the pushrods should spin freely with perhaps the tiniest amount of upward/downward movement. There is no benefit to having tight tappets at all, and a slightly loose tappet never did any harm. Cheers and good luck..............Greg. [/QUOTE]
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Tech. Advice: Series 'A' 500cc/1000cc Bikes
Series A starting procedure
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