Valve Cleaning

[hightower]

So watched a few videos, and it seems lapping/grinding is what I need, with something like this:


http://www.ebay.co.uk/itm/HOLTS-VALVE-GR...4897.l5661


I'm going to order the kit now, but has anybody else done this? I'm guessing from the videos I watched that it's straight forward enough job, just time consuming.