Introduction, green mechanic (cb350)

natebiehl

New Member
Hi there, New here.

About me:
I live in the Rocky mountains in the USA. I play a lot of music, even get paid to sometimes. I make up songs occasionally. I try to be a good dad. I had kids young, most of my peers are just having babies, my eldest is in high school. Challenging, but I'm blessed with smart, healthy kids.

Been thinking about a bike for a long time. Must be going through that midlife thing because I got divorced and got a bike all in the same couple of weeks (though the bike fell in my lap.)

As a mechanic, I've got a little bit of talent, less experience, and even less money (the perfect storm of project-wrecking traits.) I WILL have questions, most of them arising from assumptions that favor the cheapest outcome for me. I understand that about myself, and I can often self-correct and get back on track with reality, but if I look like I'm deluding myself, feel free to point that out.

Right now I'm trying to figure out why fuel is not flowing out of my project CB350's petcock when it's switched to main, but will flow out of the reserve setting. Bike seems to run fairly strong when it's getting fuel (which is a miracle, because I had the carbs partially disassembled last week and somehow managed not to to screw that up) but something's gumming up the flow out of the tank. Taking apart and cleaning the petcock during my lunch hour today.

My main questions moving forward with this bike: (71 CB350.)
[list type=decimal]
[*]I need a headlight, the original for the bike was smashed. What are some favorites for CB350 projects? I also want to replace that awful taillight and all the signal lamps.
[*]The triple tree seems to hit the tank. Turning radius is really bad. Did somebody put the wrong tank on this bike in the past?
[*]The suspension feels really bad. What questions do I need to answer before I look at upgrading that? My ultimate vision for this bike is to make it a sort of rat bike/cafe hybrid as I'm able to afford it in the future, but before I commit funds and time I want to spend time tuning it and riding it to see if I connect with this rig at all. Right now, the way it bounces into and out of turns feels really janky. Is that the way these bikes are? Is this something I live with until I decide how I want to proceed with the overall project, or is that something I see if I can fix before deciding this bike is worth a project? What's the order of operations there?
[/list]

I will probably post the same question in appropriate sub forums down the line, that's just what's on my mind as a new mechanic and new member.

Hope you have a good one.
 
Ebay has a ton of choices for cheap when it comes to turn signals.same goes for the taillight.I would stay stock with the headlight.Keep it simple.

Suspension. I run stock rear springs on my 550 and 350.My guess is your front fork seals are bad.cheap fix 20 bucks total.

I would have to see the tank to tell if its stock.

Replace your petcock.cheap fix

Aside from that is it running? No reason to work on aesthetics if you don't have running engine.
 
If the triple tree is hitting the tank, it's either not the stock tank or the stops on the triple tree have been sheared off. Or it's not a stock triple tree.

If gas is coming out at reserve but not main, are you sure there's more than a gallon or so in the tank? It might also be a clog in the petcock, guess you'll find out. It could also be the round seal with holes being in the wrong place, depending on what petcock it is.
 
The bike runs fairly strong when I get fuel to the carbs from the tank, with snappy acceleration. I'm not a seasoned rider, and the bike has been sitting a while, so I did not put the bike through the wringer much when I rode it in case the brakes had a problem or the wheels were to fall off, something like that.

I did a quick compression check just to make sure I had over 150 on each side before I got it running. Cranking the electric starter only got each side to 60, but kicking it got each side much higher. Have not done any valve adjustments or tuning, figured I'd get a steady flow of fuel to the engine before I started that stuff.
 
I don't have the specs in front of me but the main thing is that both sides have equal compression.if it has been sitting awhile clean the carbs and check the seals.No reason to buy a complete rebuild kit unless they are missing parts.
BUY A REPAIR MANUAL.I can't stress that enough. Clymer makes one for the 350 I know.It has all your torque specs and other handy info right there in front of you.I prefer Haynes manuals but I don't believe they make one for the 350.
For a budget build I would save the brakes and tires for last but definitely at the very least check them out before riding.Brakes are easy to replace skin grafts aren't!
 
carnivorous chicken said:
If the triple tree is hitting the tank, it's either not the stock tank or the stops on the triple tree have been sheared off. Or it's not a stock triple tree.

If gas is coming out at reserve but not main, are you sure there's more than a gallon or so in the tank? It might also be a clog in the petcock, guess you'll find out. It could also be the round seal with holes being in the wrong place, depending on what petcock it is.

Didn't even think about that the stops on the triple tree.It seems like most of the bikes I've built from have all been laid down at some point and those stops will be gone on one or both sides.The bottom half of the triple tree is cast steel(the top is aluminum).If its missing don't worry about it.You will just have to be aware when you park your bike so that you don't mess up your paint.
 
Petcock problem solved. I took it apart and put it back together, and I added more fuel, so I'm not sure which solved the problem, but fuel flows now. Bike runs. I'm back at work smelling like gasoline.

Backfires some. Needs some tuning. Runs stronger than I expected for a bike that kind of looks like hell and didn't run when I got it.

I guess I recheck the compression now and go from there?
 
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