Need Top-End info

[Badmammajamma]

'99 400ex.

My 400 is probably getting new rings soon and I have a question. I was told that I could buy a 416 piston and just have my stock cylinder wall "honed" out (which I'm prolly gonna have to do anyways) and the 416 piston will fit. Has anyone ever run the 416 with the stock cylinder?

[BlasterEaten250]

It will need to be bored and honed. I don't think you're gonna hone 2 mm's.

[drew416ex]

yeah it has to be bored

[buck440]

at my local shop it only cost 60 to bore it

[2muchquad]

at my local shop it only cost 60 to bore it

Man just 2yrs ago it was $35 for a bore job,my shop in town charges $50 now.Man how things have changed:(

[tyman2395]

whats the difference between bore and hone?

[2muchquad]

boring takes off a lot more of the cylinder sleeve while hone just pretty much cleans it up,minimal material removed from the sleeve.

[tyman2395]

so if i want my bike bored over 2mm for a 416 i will have to get it bored?

[2muchquad]

correct:)

[Badmammajamma]

Thanks for the info guys. Sounds like I've got my xmas list:macho