Topic: F engine indentification

[Trav-i]

This is to all the Super Sport guys out there.  I'm just trying to figure out which engine is in my F3.  I know it's not the orginal, because the numbers don't match.  What is there is a CB750E-2509584 engine.  I checked the Honda Chopper site and it listed it as a F0 engine.  I'm a little confused I thought SS engines had an F indetifier not E, but the number shows F0.

So do I have an F0 engine or a K engine? 

Any insight would be awesome, thanks guys.

Travis

[754]

 Does it have studs, is it black? look on top fin of nead  at rear between 3 &2 carbs for a number..

[Old Scrambler]

Yes, its an early F motor that is most similar to a K.  The pistons have a slight dome like the K7-K8. Minor gear changes in 4th and 5th, and maybe a slightly improved cam grind.  More reliable valve-train than the later black motors.

[Trav-i]

Thanks Scrambler,

I thought that was the case I just wanted someone who knows more then me to confirm it for me.  I am actually happy it's not the more troublesome F engines.

BTW good to talk to you again, we met at Barber this year in the VJMC area.

[Hinomaru]

Here's a very good reference for serial numbers and comes from the Honda published Motorcycle Identification Guide: 

CB750 F models:  http://www.spookytoms.com/CB750F-IDPlates.html

CB750 K models:  http://www.spookytoms.com/CB750K-IDPlates.html