I have two engines that I'm trying to identify. They say HPI on one side and K12 on the other. I realize these are HPI Racing engines and probably .12 in size but what I would like to know is how to find a manual for them. Both are setup for starter boxes and I'd like to have them use pull-starts.

Thanks ahead of time.

http://www.hpiracing.com/index2.htm

Click on "SEARCH" in title bar. Enter "Engine manual" then go.

Thanks for the response but I've tried that...

The pull starts require a special crankshaft in addition to the new back plate

Just in case anyone else has a .12 engine from HPI like mine and you also are looking to identify it. Novarossi makes these engines. Here is the one I have (CX12S2N);



It looks like a starterbox only engine. More info is available here.