Author Topic: '73 cb350f siezed barn find! (Read 18221 times)

jakec · « **Reply #100 on:** January 15, 2020, 02:38:34 PM »

Not that I'm an expert, but be careful going too fast especially with the engine. I often find myself putting things together only to take them back apart because I missed a step.

Anyways, I have my roller totally buttoned up and ready to go, ready to accept the engine but the engine is totally apart, absolutely square one! haha. Need to push myself to get it done but I try to be careful and find a balance where I'm still having fun. I'm also kinda OCD, maybe even real OCD, but that also leads to stress from NOT working on it.

574hondarider · « **Reply #101 on:** January 16, 2020, 05:20:08 AM »

Quote from: jakec on January 15, 2020, 02:38:34 PM

Not that I'm an expert, but be careful going too fast especially with the engine. I often find myself putting things together only to take them back apart because I missed a step.

Anyways, I have my roller totally buttoned up and ready to go, ready to accept the engine but the engine is totally apart, absolutely square one! haha. Need to push myself to get it done but I try to be careful and find a balance where I'm still having fun. I'm also kinda OCD, maybe even real OCD, but that also leads to stress from NOT working on it.

Yeah I was looking through your build, looks like you are going all out with your engine with the vapor blasting and case splitting, looks very nice!! My bike came 100% intact with 1 owner and 16k miles so I am hoping the bottom end is fine as it appears to be upon initial inspection.....fingers crossed! Engine wise, I just cleaned out the sump and did a top end with new pistons, had the mating surface decked, had new seats cut and new valves and stuff. Hoping that just rebuilding the oil pump and throwing in an all new oem clutch for good measure will get me where I want to be engine wise.

Very good advice about going slow, I have had to undo and redo my work on the frame and wheels a few times, so I really know what you mean!

jakec · « **Reply #102 on:** January 16, 2020, 09:19:03 AM »

Yeah, I'm not sure which post you read, but my crankcase had a hole in the bottom from another owner using longer bolts to install an engine guard. The bike did need some work but I was riding it around just with a huge oil leak. Eventually it wouldn't start up on day and I was like alright here we go. I'm sure yours is fine!

574hondarider · « **Reply #103 on:** January 20, 2020, 05:31:13 AM »

Was able to throw the tank, seat, and side kickstand on this weekend. Also spent a few hours sanding and painting the battery/air box with the undercoating paint that I used for underneath the fenders. The texture makes it look like there's rust or paint underneath, but believe me, it was nice and smooth before I shot it.

Focusing on electrical and handlebars this week......

574hondarider · « **Reply #104 on:** January 20, 2020, 05:32:52 AM »

Quote from: 574hondarider on January 20, 2020, 05:31:13 AM

Was able to throw the tank, seat, and side kickstand on this weekend. Also spent a few hours sanding and painting the battery/air box with the undercoating paint that I used for underneath the fenders. The texture makes it look like there's rust or paint underneath, but believe me, it was nice and smooth before I shot it.

Focusing on electrical and handlebars this week......

forgot the pics.....i still have to paint some of the logo.

Mark1976 · « **Reply #105 on:** January 20, 2020, 01:36:48 PM »

Looks good!!!
Now, are you going to put the bottom end in and build out from there or install the engine fully assembled.

jakec · « **Reply #106 on:** January 20, 2020, 01:59:49 PM »

At first I was going to tip the bike onto the engine to install, but decided to put the bottom end in and build up from there. That's because I wanted to move ahead assembling the bike. If you're doing the tip over method it's better to leave most parts off to make the frame lighter and easier access (no blinkers in the way).

574hondarider · « **Reply #107 on:** January 21, 2020, 05:48:42 AM »

I was able to get the engine out while the bike was upright and tied down to my lift, with the help of my neighbor. Was thinking of building the entire engine and putting it in the same way it came out. I know I will have to take the brake pedal off, but I had to install it to get the rear wheel setup.

Mark1976 · « **Reply #108 on:** January 21, 2020, 09:42:12 AM »

Having done this, more than a few times and in various ways, its always been my preference to build it out on the bench and then install it. That way you can set the points, static time and set the valves at a more friendly work height. But I always drop the frame over the engine, its just sooo much easier, but I'm not young anymore either. You can do it either way, your build. (Regardless you'll need two people) Its also just easier building out on the bench, everything you'll need is right in front of you. Take your time, you'll do fine.

574hondarider · « **Reply #109 on:** January 27, 2020, 06:48:43 AM »

This weekend's progress:

Finished painting tank logos, installed tank logos, tank cap and latch and safety sticker and petcock.

Finished inspecting and re wrapping wiring harness, added atc style fuseblock, installed components into air filter box, installed air filter box on bike and insured ground up to coils.

Mounting coils tonight and this weekend hopefully will get handlebars, gauges, front brakes, and headlight wired up!!

--does anyone else get a small high off of opening new honda clear and white parts bags and installing new stuff on their bikes?!?! lol

574hondarider · « **Reply #110 on:** January 27, 2020, 07:58:29 AM »

A quick question about grounding issues after powdercoating: What places need powdercoating removed on this cb350f for grounds to work as intended? I have the main battery box ground, the engine mounts, and the holes for the bolts for the coils. Are there any other places that need a frame ground, such as anything up around the handlebars? I powdercoated the triple clamps, is this going to cause any grounding issues with the controls on the handlebars?

MauiK3 · « **Reply #111 on:** January 27, 2020, 08:48:27 AM »

I'm not familiar with the 350 but you will need to ground to clean metal any where a green wire bolts to the frame. Your turn signal and tail lights may have a local ground wire, check the wiring diagram for any ground symbols and see where they go.

carnivorous chicken · « **Reply #112 on:** January 28, 2020, 08:17:11 AM »

Front turn signals, which are grounded to the nuts inside the headlight bucket. I've had to route a ground wire past this for turn signals as there was a bad connection due to paint on the fork ears. And of course your main ground, which attaches to the frame near the battery. If I remember correctly, rear turn signals also ground to the frame but don't quote me on that one. Can have a look later.

574hondarider · « **Reply #113 on:** January 28, 2020, 10:13:08 AM »

Thanks guys. I was thinking about those headlight bucket nuts on the way to work today and wondering how the ground will be with the new paint and clear coats. I mounted up the coils last night and made sure to clean off a little bit of powdercoat from the bolt holes and add some electrical grease (at the time was going to scrape away enough powder coat for the entire square-ish coil mount bracket but didn't) and the coils show ground, but then I read somewhere where the 350s' coils get the ground from the points anyways, so I guess I did that for nothing. I am figuring it out as I go, just takes twice as long as it should!

So do the handlebars have any ground issues with a powder coated triple?

WhyNot2 · « **Reply #114 on:** January 30, 2020, 05:51:50 AM »

Tank work looks really nice.....

How did you install the gas cap? Meaning which pins did you use?

574hondarider · « **Reply #115 on:** January 30, 2020, 06:53:31 AM »

Quote from: WhyNot2 on January 30, 2020, 05:51:50 AM

Tank work looks really nice.....

How did you install the gas cap? Meaning which pins did you use?

Thank you!! Hondaman gas cap bolts, had to cut them to size but not a big deal, worked nicely!

WhyNot2 · « **Reply #116 on:** January 30, 2020, 11:11:10 AM »

Quote from: 574hondarider on January 30, 2020, 06:53:31 AM

Quote from: WhyNot2 on January 30, 2020, 05:51:50 AM
Tank work looks really nice.....

How did you install the gas cap? Meaning which pins did you use?

Thank you!! Hondaman gas cap bolts, had to cut them to size but not a big deal, worked nicely!

Cool, thanks.....

574hondarider · « **Reply #117 on:** February 04, 2020, 06:57:10 AM »

Baby steps but progress:

Wired up coils and rear lights to harness, cut plug wires and installed plug ends, installed ignition swith and horn, painted side logos, started polishing engine covers (not pictured).

This weekend hope to get valves installed, work on rebuilding oil pump and new clutch install. That is, if my daily driver doesn't take up too much of my time doing maintenance!

My son the karoke star is excited to take a ride. I told him I may just forego the engine and put pedals on her and make her into a bicycle!

574hondarider · « **Reply #118 on:** March 03, 2020, 05:55:49 AM »

Continuing to do lots of work to this bike. I got new bars (thanks Hondaman!), cleaned up handlebar electronics and installed bars, freshly painted gauges, and wired up everything in the headlight bucket. Put the top end together, and just have to set valve clearance and engine should be going into bike by Saturday. Then just gotta throw the carbs in and run cables and front brake line and she should be all ready to start!!!

Mark1976 · « **Reply #119 on:** March 03, 2020, 09:53:32 AM »

Looks really good. Just took mine for a spin, its 60 degrees out here. Really looking forward to seeing this come together.

574hondarider · « **Reply #120 on:** March 04, 2020, 01:30:18 PM »

Quote from: Mark1976 on March 03, 2020, 09:53:32 AM

Looks really good. Just took mine for a spin, its 60 degrees out here. Really looking forward to seeing this come together.

Thanks Mark! I am eager to get it done too! I took my red 350F out the other day when it was in the 50's, developed a tach seal leak over winter, I think it's just jealous that I gave this bike so much attention this winter! I am pretty nervous about the build since I used C.I. pistons and rings after having since read about all the issues others seam to have.

WhyNot2 · « **Reply #121 on:** March 05, 2020, 03:17:57 AM »

Man, no kidding, you have done an excellent job.

Wish I could get up off my lazy azz, and get my little 350 going.

Carbs have to come off again on mine due to peeing all over the ground when I turn the gas on.

Yours is looking great. Also, can't wait to see how it turns out.

574hondarider · « **Reply #122 on:** March 05, 2020, 05:28:04 AM »

Quote from: WhyNot2 on March 05, 2020, 03:17:57 AM

Man, no kidding, you have done an excellent job.

Wish I could get up off my lazy azz, and get my little 350 going.

Carbs have to come off again on mine due to peeing all over the ground when I turn the gas on.

Yours is looking great. Also, can't wait to see how it turns out.

Thanks! Have you ran it for awhile and it still does it? From what I gather and from my experience, they all do that until the carbs are hydrated, take it for a spin and it should solve the issue. If not, sounds like float height adjustment. I have also polished the float needle seat using a q-tip, drill and some metal polish which I hope will help with that.

WhyNot2 · « **Reply #123 on:** March 05, 2020, 05:37:03 AM »

I can't get it started just yet...........seems a new battery is in the near future.

But thanks for the info.

carnivorous chicken · « **Reply #124 on:** March 05, 2020, 08:38:12 AM »

Quote from: 574hondarider on March 05, 2020, 05:28:04 AM

Quote from: WhyNot2 on March 05, 2020, 03:17:57 AM
Man, no kidding, you have done an excellent job.

Wish I could get up off my lazy azz, and get my little 350 going.

Carbs have to come off again on mine due to peeing all over the ground when I turn the gas on.

Yours is looking great. Also, can't wait to see how it turns out.

Carbs could be a few things, including float height or valves, but also cracked overflow tubes, sticking floats, or what I have just chased down -- the o-rings for the t-joint and other two joints between the carb are old and have dried up -- the carbs sat dry for two years or so. Taking carbs off of these things is such a PITA with stock airbox, but for me replacing those is gonna do it. Have the o-rings ordered.

Thanks! Have you ran it for awhile and it still does it? From what I gather and from my experience, they all do that until the carbs are hydrated, take it for a spin and it should solve the issue. If not, sounds like float height adjustment. I have also polished the float needle seat using a q-tip, drill and some metal polish which I hope will help with that.

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Author Topic: '73 cb350f siezed barn find! (Read 18221 times)