CL360 running like crap, what jets should I buy for carbs?
- Thread starter lipuid
- Start date
One thing I wanted to chime in on...360 Hondas are notorious for carb problems. Yes, for heavens sake tune your engine, a sick engine will never work right, but one thing people often overlook on these carbs is the needle jet itself (the little spool shaped piece of brass that sits in the carburetor venturi above the emulsion tube). They don't come in any of the kits I have ever seen and are often in terrible condition...particularly on the left carburetor. They use the same needle jet as the early (pre-supersport) SOHC Honda 750. The last time I tried to get them they have gone out of production, but some can still be found on Ebay.
frogman
'74 CB360, '71 CB450, '75 CB550SS
+1 On goldy's suggestion, 360 carbs need to be so clean you would be proud to serve your mom a shot a of vodka out of them. Don't screw with jets until you have everything else mentioned checked and rechecked. Changing more than one thing at a time is a nightmare to trouble shoot and will lead you to chasing your tail repeatedly.
Another thought, is the engine even firing on both sides? They will barely run on one side and might pull you around in 1st gear.
Another thought, is the engine even firing on both sides? They will barely run on one side and might pull you around in 1st gear.
Make bloody good and sure your fuel tank is clean before you try to run the machine...there is no filter this side of hell that can keep ALL the fine sediment out of your carbs. There is already a filter on the petcock, but you can add an additional one in the fuel lines...I've never had any issue running the ones fitted with the sintered bronze core...I'm sort of partial to these little ones too- http://www.partsnmore.com/parts/honda/cb360t/?filters[category]=carb&filters[fitting]=universal
(part # 20-0013)
(part # 20-0013)
The 20013 have the nylon screen...good flow and transparent so you can see if you are getting any sort of accumulation in the filter itself. Not sure about the filter media in the other ones, but I think those ones are opaque plastic...I prefer to be able to see through the filter.
lipuid
Been Around the Block
The 20013 is a cream colored plastic too though right? Or is it a clear? The 20008 looks like a smaller version?
It probably has really good flow compared to those stone filters that are clear and cone shaped and really small. I am running those right now and have a feeling it's causing low fuel pressure.
It probably has really good flow compared to those stone filters that are clear and cone shaped and really small. I am running those right now and have a feeling it's causing low fuel pressure.
crazypj
Split personality, I fake being smart
It doesn't really matter what jets you fit, if you remove stock air box it will not run right between 4~7,000 rpm. If you fit too short an exhaust, you are just creating more problems for yourself. The 3 jet (pilot, primary main, secondary main) carbs are very difficult to tune on the transitions, 'standard' carb diagrams and methods just don't work (bigger main jet, raise needle, mess with air screw :
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mydlyfkryzis
当有疑问时踢你的敌人在生殖器上，你可以道歉后
bubonicplay said:I'm using this on each fuel hose
Those filters with the sintered bronze elements are awful. They have a high restriction and being small, can clog quickly. Those type of filters are better with a fuel pump.
Get paper element fuel filters. Ones for lawn mowers. Low restriction and good filtering.
As PJ said, short pipes, pods, never can be tuned well. Stock airbox and long pipes give the most performance from a stock engine.
goldy said:
Im a little intrigued. Please post a pic of your current set up for this. head pipes, mufflers, filters, detail shots of the carbs installed, insulators you use, linkages and such. Any jetting changes, etc. basically the bike as its set up and running good right now.
I would love to give you pics, but it's not my bike. The possibility of changing them over was a favorite topic of discussion between a few of my friends. One of them took the plunge and fitted the CV carbs from a "for parts" 350 to a 360 that he was trying to get it to run properly for years. He used the standard 350 carbs and cables with no modifications whatsoever except for using a hose clamp on the spigots (the 350 carbs are slightly smaller, of course). Stock air filters, stock exhaust. He has been riding it around in this state for the past two summers, the bike is running perfectly he has never looked back.
Love your avatar!
Love your avatar!
