Agree pump failure unlikely but can be repaired to as new for around £50 quid. Sounds expensive to me, if it is a full rebuild could save money getting engine out yourself if you'rehandy with tools. Ask supplier for contribution to repair, should have been in a serviceable condition at sale.

And welcome btw!

Sounds like it's seizing to me, take it back and get them to sort. Any air leaks on carb side of inlet?

Can I come!

Sorry, didn't see your reply, my bad! Can't comment on using until repair, personally would wait, can chain failure catastrophic.

I would be interested in one of the 3mb heads, send me a pm if your OK with that. Ta

Think Honda's are known for failure of the cct, read reports of upgraded items available, not something I have had to do thankfully

Wemoto supply a kit for the swingarms,