Reply To: Valve clearance, camshaft, camshaft tensioner – a problem or a serious fault?
Hey,
I would drop down to 13T , 14T is too heavy for it. I almost never use 14T when i do 520 conversions. As you have 428 , i do not know what tooth count of rear sprocket to comment further, this could contribute to speed issues. 67MPH is usually the factory speed but here in UK National speed is 70mph and that is even dangerous for some riders as cars normally drive to 80mph + all day long, hence the need for a longer gear rear sprocket but also quicker small front sprocket , so you have to experiment with ratios that suit you.
Clutch Plates = Some minor HP loss happens if springs are heat fatigued & plates are too worn down ? = Less HP transfered to back wheel, so it is possible that it may contribute to your vmax issue.
Intake System = Connect the carbs to the airbox first ====> then tighten nicely.
Now your carbs and airbox are fully sealed up.
This means you have one big piece (carb+airbox) going down to the intake pipes connecting the engine.
Be VERY cautious as it is getting harder & harder everyday to get good condition rubber parts and they are very delicate things.