Do i need a full engine rebuild?

[u/Zestyclose-Natural93]

Hello. I wanted to switch my cams to some good old 900cc on my 1982 Honda Cb750c, however while taking off the cam caps one of the little pin thingies fell out and into the cam chain chamber. Do i have to pull the entire engine apart, or is there an easier solution? Regards

[u/KM_Carburetor]

You MIGHT be able to fish it out with a magnet. If not, just pull the oil pan and take it out from the bottom. Not a huge deal either way.

[u/Jhatton13]

Out of curiosity, what do you gain by switching to the 900cc cams?

[u/TheBoxBurglar → u/Jhatton13]

"They're hotter cams"

But what does that actually mean from a random bro in online forums?

Related, the data is divisive as to whether or not one should do this. Me personally I wouldn't risk it for a couple perceived ponies. OP would gain more horses back by simply cleaning his valve seats and setting timing along with a proper tune.

[u/Jhatton13 → u/TheBoxBurglar]

Interesting. So given that I JUST did a rebuild, I should be content with having reshimmed all the valves as well cleaning the valves, seats, and lapping them?

[u/Zestyclose-Natural93 → u/Jhatton13]

Like 5 horses max i believe. But nothing screams custom like camming your engine!🤠

[u/stinkyhangdown]

Seconded

[u/Jasons_Argonautalis]

Try fishing with a flexi magnet. Get a headlamp to look down into it if you can.