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Thanks. I'll let you know after I tear mine down and inspect the condition.

New rings are in the mail. PJ has my Keihin CV carbs. So some progress taking place again.

Got a set of used GS850 Pistons. Now to break down the motor and have the cylinders bored.

My friend was over for dinner and mentioned his dad used to have a CB360. He sent me this last night, and I thought you guys would enjoy this. I think his dad was nuts!

Hearing you say this makes me want to be the one to try the Megacycle cam. Should pair well with GS850 pistons, a Mikuni VM30 kit, and freeflow mufflers. There is something about just knowing your machine is a little extra special on the inside.

I appreciate the offer, but I'm not going to go the 2-1 route. Probably do a pair of VM30s (kit from Speed Moto).

Thanks for the tip, but I think they raised their prices:

For the sake of posterity, here are the cam specs for Megacycle compared to the OEM Honda 360 cam as measured by Megacycle: (https://www.megacyclecams.com/): Valve to piston clearance on the Megacycle cam is: Intake - .043 Exhaust - .047 Cost for regrind on your cam is $500. They...

It is tempting. But I can imagine it would take a lot of trial and error to get it to run right (assuming you pick the right carb size to begin with. Speaking of size, 2x the area of a 28mm circle is 40mm. However, even though the volume of air would be the same, the vacuum signal would be...

$150 for boring at Bill Bune. $130 at my local automotive machine shop. Not much of a difference for the experience and reputation of a motorcycle specialty shop. The bigger issue is shipping or delivery. BB is about 2.5 hours from me and the local shop is 3 miles.

What are PJ's mods, or does PJ actually do the rebuilding? CV carbs have a bit of throttle lag. Wouldn't it be a reasonable compromise to go with a set of VM30s? (SpeedMotoCo has a set for about $400 with carb boots and velocity stacks.) I was under the impression that CV carbs were designed...

What carb would you use? Here is what I came up with for a manifold printed from black polycarbonate. This material can handle the temps, shocks, and fuel vapors, but it is somewhat hard to print (and long -- this would be a 2-day print for one piece... if it doesn't fail mid-print). On the...

Right on about the "investment" part. My numbers are coming together at about $3,000 for this build without the engine modifications. I'm quite sure I couldn't sell it for $3,000 when I am finished. I found Suzy pistons in stock at a couple dealers. $150 for the pair plus $65 for the rings...

I talked to Megacycle today. $500 for cam regrind. Ouch. On top of GS800 pistons and cylinder boring... over $1,000 in performance upgrades. Is it worth it for how I plan to use this cycle? Yeah, it would be cool to know I squeezed a bunch more out of it, but.... $$$. I could just slap a...

Been thinking a lot about the carbs lately. Trying to mentally solve what direction to go. I know I don't want the factory Keihins -- they are on Ebay already. The DCOE40 would be incredibly sexy, but could end up being a pain ($$$) to dial in. Also, there is the matter of the custom intake...

Nice! Mallet and shot bag? Slappers and dollies? English wheel? Did you have to anneal?

"The only substitute for cubic centimeters is cubic dollars." Very cool info. Thanks for the tip on megacycle cams... hadn't found them yet.

Was able to get a reproduction tag from Ebay seller jrure (Jerry). I recommend you look him up if you need to replace a sticker type head tube tag. He sent me two tags and a bonus Suzuki decal. About $50 with shipping, but top quality work and good communication.

Watched this last night. For my application I think PLA will be fine. Bigger challenge I have is infill in my print as well as sprue placement. Sounds like investment casting is a better option because the PLA can be burned out before the casting. Also need to think about designing it so...

I will look into this. Saw I could use PLA, and didn't really investigate to see if there is a more ideal material compatible with my printer (Prusa i3 Mk3s+).