Keep stock carbs or get new ones? (Cl360)

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ksprzk

Active Member
So I know I'm going to have to either redo the carbs or have someone rebuild them. I posted a photo below. The one carb was full of this white residue and when I took the engine apart I saw the previous owner actually forgot to fasten that carb to the engine (no not kidding it was just dangling there) i will also be putting on new pod k&n filters. So I know they need to be rebuilt.

So with that said...I've never rebuilt carbs. You folks have convinced me to do everything else myself. But! Should I A- rebuild them myself. B- have someone else rebuild them or C- buy new carbs.
 

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Rebuild them yourself - there's no magic to it. Get some carb cleaner (dip) and put all the metal and brass bits into it for a soak. Buy new gaskets/o-rings etc. and put them back together.

I don't think I would have even noticed the residue you're pointing out - don't get too stressed out over that sort of thing.
 
The white stuff will just clean out nps there ! As for stock carbs over new ones your still going to have to learn to clean, rebuild or adjust them ! I went with new VMs over the stock ones and still need to work on the new ones a lil to get them working correctly so in a way I'm rebuilding them . I also have a LS2 that I will be rebuilding the stock set of carbs for it so guess what I'm saying is first rebuild the ones you have and learn from that and if you go with new ones down the road you have a good point and understanding of carbs !
There's a lot of great info here to learn on carbs ! Good luck !!!
 
Tim- I should post a photo of the other one when I get home (top side of it) it's literally caked on with residue
 
ksprzk said:
Tim- I should post a photo of the other one when I get home (top side of it) it's literally caked on with residue
Click to expand...

That's aluminium oxide - it's what happens when aluminum is exposed to the elements, and it's actually not a bad thing - it forms a protective layer over the bare metal. It's (relatively) easily cleaned off.
 
But carbs are not aluminum.

I had a bunch of that stuff in my carbs the last time I cleaned them. I don't know what it is but it came off with some carb cleaner and a toothbrush.


END OF LINE
 
Nice. Well I guess I'll try it myself after I do the valve clearance tonight. I do have the Honda Carb manual. Will search on here for instructions beyond that. Anyone have links handy?
 
Carbs are either zinc diecast (Mazak?) or aluminium alloy
CB360 has some combination alloy?
It oxidises much darker than aluminium alloy would on the outside
zinc oxide is white when it reacts with water (or your brazing on it)
Zinc is preferred as it is easier to get accurate castings
Aluminium is a lot more difficult to cast and has only become common since the mid~late 80's, it is a LOT cheaper than zinc based alloys
 
Harbor Freight sells a cheapie sonic cleaner that's awesome for carbs. Takes awhile to clean them completely but wjen its done they're like new.
 
crazypj said:
Carbs are either zinc diecast (Mazak?) or aluminium alloy
CB360 has some combination alloy?
It oxidises much darker than aluminium alloy would on the outside
zinc oxide is white when it reacts with water (or your brazing on it)
Zinc is preferred as it is easier to get accurate castings
Aluminium is a lot more difficult to cast and has only become common since the mid~late 80's, it is a LOT cheaper than zinc based alloys
Click to expand...

Sorry, should have been clearer. It's a given that it would be some alloy of Aluminium as you're not likely to find pure Al outside of your Reynolds Wrap container
 
Hi Rich, I'm just being a dick ;D
They are probably zinc based alloy rather than aluminium based alloy as they are pretty heavy
 
Even tho he's a weiner, if you want 'em done perfectly, crazypj is the man you want to talk to. You can also do it yourself - it's not rocket science, and there's a decent section on the hondatwins.net site about it.

I would do it myself, but mostly because I won't* send that insufferable asshole any money :)

*can't
 
Rich Ard said:
I would do it myself, but mostly because I won't* send that insufferable asshole any money :)

*can't
Click to expand...


He has a set of my carbs and I don't know what it is going to cost me yet.
 
Oh, wondered who's those were ;)
They are 'experimental' for CB450, CB350 and 360 are 'sorted', matey boy ;D
 
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