Hi all,

We have a lifan engine from which we have removed the governor mechanism.  In the process we disturbed the camshaft and lifters.  We reinstalled the camshaft, lining up the timing marks and had to drop the pushrods in from the top, meaning we had to reset the valve clearances.

We've set them to 8 and 10 thou, which seemed to be the recommended gaps.

My concern is the the rockers feel very sloppy at TDC with those settings.  Is that normal?

Thank you.

No, we've left the springs as-is for now.  We've added a decent exhaust and a Mikuni clone carb. 

We're trying to resist the temptation to go for loads of power as we've both been involved in properly powerful racing kit in the past and the cyclekart is meant to be a light-hearted break from that.

For the sake of a few quid and the peace of mind the up-rated springs give you, I would be in agreement with Nick. I have bought from kart suppliers "18lb" springs and also used the link below that does not give a rating but classes them as "heavy duty" - and when bought - they are identical to the "18lb" springs even to the packaging. https://www.ebay.co.uk/itm/323822196039
JimR