Author Topic: mattcb350f's........CB350F Project/Restoration (DONE)  (Read 36212 times)

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Offline mattcb350f

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mattcb350f's........CB350F Project/Restoration (DONE)
« on: February 01, 2008, 01:41:49 pm »
Well since there's this new Project Shop section I decided to start my own log on my 350F rebuild.



This is it: 1974 Honda CB350F, bought for $300 in August/07



Began tear down before christmas/07....





At this point I'm waiting on parts to arrive. Engine is dissasembled, cleaned, machined and ready for new brgs., gaskets, etc....frame and all painted parts stripped or glass beaded awaiting paint (should be done by next week  8))

As for mods, I'm sticking with stock pistons but porting the head and adding a Web Camshaft with a mild grind. Exhaust is a MAC 4-1 but I want to change the baffle. Buzz @ dynoman says his kerker baffles may fit.


Project end date:  :D :D :D  May, I hope.. ;)

« Last Edit: May 08, 2008, 06:03:36 pm by mattcb350f »
1974 CB350F,  1980 CB125S,  1981 XL80S
Non Honda's: 86 & 87 Husqvarna 400wr's

My CB350F resto: http://forums.sohc4.net/index.php?topic=30467.0
Gallery at:
http://gallery.sohc4.net/main.php?g2_itemId=298318

Offline neil young

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Re: mattcb350f's........CB350F Project/Restoration
« Reply #1 on: February 01, 2008, 02:41:34 pm »
Right on Matt.
i need a heater in my garage.its to friggin cold to do anything around here.



good luck
Neil
1972 CB500 k1
1974 CB550
1977 cb 550
82 suzuki GS 750tz.......16  valves  baby
2008 Triumph Scrambler

Offline mattcb350f

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Re: mattcb350f's........CB350F Project/Restoration
« Reply #2 on: February 04, 2008, 06:28:13 pm »
Should be better tomarrow Neil, suppose to hit +8 or 10  :) :)
1974 CB350F,  1980 CB125S,  1981 XL80S
Non Honda's: 86 & 87 Husqvarna 400wr's

My CB350F resto: http://forums.sohc4.net/index.php?topic=30467.0
Gallery at:
http://gallery.sohc4.net/main.php?g2_itemId=298318

Offline mattcb350f

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Re: mattcb350f's........CB350F Project/Restoration
« Reply #3 on: February 07, 2008, 10:32:54 am »
Got some parts painted  :)



This is my Brother painting my frame, swingarm, etc



It turned out pretty well, now I can start the reassembly stage of the resto project.  8)

My used oven also just arrived so I can bake my engine parts and my box of parts arrived from Honda on Monday. Things are starting to come togeather.

 Matt.
1974 CB350F,  1980 CB125S,  1981 XL80S
Non Honda's: 86 & 87 Husqvarna 400wr's

My CB350F resto: http://forums.sohc4.net/index.php?topic=30467.0
Gallery at:
http://gallery.sohc4.net/main.php?g2_itemId=298318

Offline keiths

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Re: mattcb350f's........CB350F Project/Restoration
« Reply #4 on: February 07, 2008, 07:35:37 pm »
Looking Good Matt.

Offline garretcb750

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Re: mattcb350f's........CB350F Project/Restoration
« Reply #5 on: February 07, 2008, 08:30:17 pm »
Good stuff..... sounds like a great project and its good to see fellow canadians on the site.

I have a 550 and ATP turbo i've been putting off and can't wait to get it started.

Cheers

Offline mattcb350f

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Re: mattcb350f's........CB350F Project/Restoration
« Reply #6 on: February 19, 2008, 02:49:00 pm »
Seat cover arrived  :)



Most of my parts are in, now I've started to put things togeather. Of course, the first thing I start with is the swingarm..... noticed a little problem:



Honda put a grease nipple in the bolt that holds the swingarm on and a passage way to the hollow pivot shaft, but never drilled any holes in the "pivot shaft" to allow the grease to get to the bushings  ???

In the pic, I drilled out two holes where they should have been in the grease pockets... and pumped some grease in there to make sure it worked..

Glad I found this before I put it togeather  ;)

 Matt.
1974 CB350F,  1980 CB125S,  1981 XL80S
Non Honda's: 86 & 87 Husqvarna 400wr's

My CB350F resto: http://forums.sohc4.net/index.php?topic=30467.0
Gallery at:
http://gallery.sohc4.net/main.php?g2_itemId=298318

Offline fishman_Phil

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Re: mattcb350f's........CB350F Project/Restoration
« Reply #7 on: February 20, 2008, 11:14:36 pm »
Must have a look at my swing arm as well before it goes back in. I noticed the shaft the brake pedal mounts on very dry and lacks lubrication as well. Keep up the good work.
Cheers ... Phil in New Zealand
1972 Honda CB350F (2); 1975 CB400F; 1983 CBX400F (1); 1962 Suzuki MA50 (1); Suzuki M15 (3); Suzuki M15Mk2 (2); Suzuki M31 (2); 1936 James H12 (2); 1948 Triumph Speed Twin 500; 1989 Suzuki GSXR250F; Yamaha Chappy (2); alot of work yet to be done.

Offline Sam Green Racing

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Re: mattcb350f's........CB350F Project/Restoration
« Reply #8 on: February 20, 2008, 11:21:32 pm »
Looking good Matt but couldn't you find a normal sized shed. ;D ;D ;D ;D ;D

And another thing, were you a little on the premature side when you bought the bike in August 2008 ;D ;D ;D ;D ;D ;D

Sam. ;)
C95 sprint bike.
CB95 hybrid race bike
CB95 race bike
CB92
RS 175. sprint/land speed bike
JMR Racing CB750A street ET drag bike

Offline mattcb350f

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Re: mattcb350f's........CB350F Project/Restoration
« Reply #9 on: February 21, 2008, 01:49:52 pm »
Looking good Matt but couldn't you find a normal sized shed. ;D ;D ;D ;D ;D

And another thing, were you a little on the premature side when you bought the bike in August 2008 ;D ;D ;D ;D ;D ;D

Sam. ;)

The pics are taken at my family's potato farm... lots of big sheds  :)

...what year is it anyway?  it's 2009 right  :D 

.....thanks for the correction Sam  ;)

 Matt.
1974 CB350F,  1980 CB125S,  1981 XL80S
Non Honda's: 86 & 87 Husqvarna 400wr's

My CB350F resto: http://forums.sohc4.net/index.php?topic=30467.0
Gallery at:
http://gallery.sohc4.net/main.php?g2_itemId=298318

Offline schneider419

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Re: mattcb350f's........CB350F Project/Restoration
« Reply #10 on: February 24, 2008, 06:20:16 am »
matt,
it's good to see a fellow 350f owner working on the"other woman!!" ha,ha. as well as a fellow farmer. i'm an "old" farmer. i used to live on the farm, i no longer farm, but i do miss it. you know your own boss, less poeple to answer to, being outside, aaaahhhh....... oh well, keep up the good work and i'll wait to see the finished product.
                                                                      mike

rlarkin70

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Re: mattcb350f's........CB350F Project/Restoration
« Reply #11 on: February 26, 2008, 07:14:55 pm »
nice looking bike, coming along well. how did the seat turn out?

-Ron

Offline mattcb350f

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Re: mattcb350f's........CB350F Project/Restoration
« Reply #12 on: February 27, 2008, 05:45:11 pm »
The seats coming along, but I've been busy with the forks...



I've just started on installing the seat cover since I had to weld some cracks in the pan.... then paint it and reinstall the foam:



 Matt.
1974 CB350F,  1980 CB125S,  1981 XL80S
Non Honda's: 86 & 87 Husqvarna 400wr's

My CB350F resto: http://forums.sohc4.net/index.php?topic=30467.0
Gallery at:
http://gallery.sohc4.net/main.php?g2_itemId=298318

Offline Jay B

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Re: mattcb350f's........CB350F Project/Restoration
« Reply #13 on: February 29, 2008, 05:41:39 am »
I'm anxiuos to hear how it runs with the porting and cam. I was going to do mine, then I got too busy with my 550.
Jay
'77 CB550K
'74 CB350F cafe
2001 Road King
'73 CB175

Offline mattcb350f

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Re: mattcb350f's........CB350F Project/Restoration
« Reply #14 on: February 29, 2008, 08:45:42 pm »
The seat cover continued.....



Cover fit well. a little heat was the trick to getting it nice and tight. hairdryer was not enough so I held the seat near the woodstove  :) Got the whole seat cover warm at once.

Porting is actually the next job. My machinist neighbour brought home his porting tools today so I plan to get at it tomarrow.... won't likely be done tomarrow though  ;D

 Matt.
1974 CB350F,  1980 CB125S,  1981 XL80S
Non Honda's: 86 & 87 Husqvarna 400wr's

My CB350F resto: http://forums.sohc4.net/index.php?topic=30467.0
Gallery at:
http://gallery.sohc4.net/main.php?g2_itemId=298318

Offline keiths

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Re: mattcb350f's........CB350F Project/Restoration
« Reply #15 on: March 01, 2008, 10:23:27 am »
Matt, how did you get the old foam off and back on? Did it just peel off? What kind of glue did you use?
Its going to be one sweet ride.
Thanks,
Keith

Offline mattcb350f

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Re: mattcb350f's........CB350F Project/Restoration
« Reply #16 on: March 01, 2008, 05:45:31 pm »
Matt, how did you get the old foam off and back on? Did it just peel off? What kind of glue did you use?
Its going to be one sweet ride.
Thanks,
Keith

Hi Keith, I got the old foam off rather easily since the pan had started to rust underneath the foam and the foam was starting to peel off on its own. Where there was no rust was a little harder, I had to work the foam away from the edges and work my hand in between the foam and the pan to get er' loose. Only lost a few bits of foam, not enough to cause a problem. Thing I found is I couldn't pull the foam away from the pan, I had to sort of push it away with my hand from underneath. The real trick was getting the bits of rust off the foam after it was off. There's no easy way, just have to pick them off one by one.

The glue I used was a can of Contact Cement. Came in a can with a brush attached to the lid. I can get the brand name if you want that.... can't remember it off the top of my head.

The only reason I took the foam off was because I had two cracks to weld, on each side just ahead of the hinge area. Both of my seats have cracks here so I think it's a common problem.

I also sandblasted each side of the pan and gave it some fresh paint, except on the inside of the pan where the seat cover is glued. I left that bare and blasted for the glue to stick to.

Just took the clamps off tonight and glued the trim back on. Glue is good and solid, I just hope it holds up  :D

We'll find out this summer when I'm sliding around on it.

 Matt.
1974 CB350F,  1980 CB125S,  1981 XL80S
Non Honda's: 86 & 87 Husqvarna 400wr's

My CB350F resto: http://forums.sohc4.net/index.php?topic=30467.0
Gallery at:
http://gallery.sohc4.net/main.php?g2_itemId=298318

fixahonda

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Re: mattcb350f's........CB350F Project/Restoration
« Reply #17 on: March 02, 2008, 03:40:44 pm »
I like the project. Looks like it's coming along great.
I have a '73 350F that I'm currently getting back on the road. Same color as yours and I paid almost the same amount ($260). I'm interested in seeing what a full resto is going to look like. I went for a "freshen up" rather than resto. Mostly cleaning it up while replacing worn parts.

If you don't mind my asking, where did you get the seat cover? It looks a lot nicer than the ones I've seen on Ebay. I only have a small tear as of now, but I'm sure it will gain some ground as it's ridden. The installation looks similar to the installation of a VW bug headliner. Stretching, contact cement and lots and lots of clips and clamps.

Offline mattcb350f

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Re: mattcb350f's........CB350F Project/Restoration
« Reply #18 on: March 02, 2008, 05:05:25 pm »
If you don't mind my asking, where did you get the seat cover? It looks a lot nicer than the ones I've seen on Ebay.....The installation looks similar to the installation of a VW bug headliner. Stretching, contact cement and lots and lots of clips and clamps.

Actually I got it off Ebay: http://cgi.ebay.ca/CB350-seat-cover-for-Honda-CB350F-1968-73-F-F1-FOUR_W0QQitemZ150191744028QQihZ005QQcategoryZ35589QQrdZ1QQssPageNameZWD1VQQ_trksidZp1638.m118.l1247QQcmdZViewItem

I'll have some pics of the finished product shortly (misplaced camera  ::)).... reinstalled the trim and put the passenger strap on (supplied with the cover)

Twas' a slow process installing the cover... lots of glue, clamps and patience  ;)

If you're looking at buying this seat cover, remember it has no trim molding on the bottom. So you need to use the old one. The original cover has the trim molded to the cover and the trim is actually what holds the cover to the pan. Got to cut the old trim off and glue it on after.

I've heard the David Siver spares' covers have the trim on them.. but I could be wrong.

 Matt.
1974 CB350F,  1980 CB125S,  1981 XL80S
Non Honda's: 86 & 87 Husqvarna 400wr's

My CB350F resto: http://forums.sohc4.net/index.php?topic=30467.0
Gallery at:
http://gallery.sohc4.net/main.php?g2_itemId=298318

Offline mattcb350f

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Re: mattcb350f's........CB350F Project/Restoration
« Reply #19 on: March 02, 2008, 06:37:57 pm »
Ok, here's the seat cover in its final form...





I used a steel rivet in place of the rusty chrome bolt on the seat strap here. It wont dig into the seat like the old bolt did:



And here's some before pics of the intake and exhaust ports before porting...
 
Intake


Exhaust


 Matt.
1974 CB350F,  1980 CB125S,  1981 XL80S
Non Honda's: 86 & 87 Husqvarna 400wr's

My CB350F resto: http://forums.sohc4.net/index.php?topic=30467.0
Gallery at:
http://gallery.sohc4.net/main.php?g2_itemId=298318

Offline mattcb350f

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Re: mattcb350f's........CB350F Project/Restoration
« Reply #20 on: March 07, 2008, 02:36:56 pm »
Porting Continued....



They look better polished up now, more pics on the way when I'm done..
 Matt.
1974 CB350F,  1980 CB125S,  1981 XL80S
Non Honda's: 86 & 87 Husqvarna 400wr's

My CB350F resto: http://forums.sohc4.net/index.php?topic=30467.0
Gallery at:
http://gallery.sohc4.net/main.php?g2_itemId=298318

Offline mattcb350f

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Re: mattcb350f's........CB350F Project/Restoration
« Reply #21 on: March 15, 2008, 11:44:00 am »
Did a little painting....




1974 CB350F,  1980 CB125S,  1981 XL80S
Non Honda's: 86 & 87 Husqvarna 400wr's

My CB350F resto: http://forums.sohc4.net/index.php?topic=30467.0
Gallery at:
http://gallery.sohc4.net/main.php?g2_itemId=298318

Offline fishman_Phil

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Re: mattcb350f's........CB350F Project/Restoration
« Reply #22 on: March 15, 2008, 01:35:57 pm »
Engine looks sweet as Matt. Maybe even better looking than mine now. I see in one of your other pics the front fork legs sitting in the back ground and you have them looking great. Keep up the good work ... Phil in NZ
1972 Honda CB350F (2); 1975 CB400F; 1983 CBX400F (1); 1962 Suzuki MA50 (1); Suzuki M15 (3); Suzuki M15Mk2 (2); Suzuki M31 (2); 1936 James H12 (2); 1948 Triumph Speed Twin 500; 1989 Suzuki GSXR250F; Yamaha Chappy (2); alot of work yet to be done.

Offline mattcb350f

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Re: mattcb350f's........CB350F Project/Restoration
« Reply #23 on: April 04, 2008, 10:18:58 am »
Well my project had taken a back seat to college work in the past few weeks. But now I've got some time to get back at it  :)

The tank, sidecovers and fork ears are all primed and ready to be painted and this afternoon I'm putting the transmission in and the cases together.

Suppose to be up to 14 C this weekend (that's about 59 F) so summer's on the way  ;D

 Cheers, Matt.
1974 CB350F,  1980 CB125S,  1981 XL80S
Non Honda's: 86 & 87 Husqvarna 400wr's

My CB350F resto: http://forums.sohc4.net/index.php?topic=30467.0
Gallery at:
http://gallery.sohc4.net/main.php?g2_itemId=298318

Offline mattcb350f

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Re: mattcb350f's........CB350F Project/Restoration
« Reply #24 on: April 04, 2008, 09:18:42 pm »
What do ya know, I actually got the cases together this afternoon...



I whipped this stand to make life easier:







Here's the painted bits my (Very generous) Brother is working on:




 Matt.
1974 CB350F,  1980 CB125S,  1981 XL80S
Non Honda's: 86 & 87 Husqvarna 400wr's

My CB350F resto: http://forums.sohc4.net/index.php?topic=30467.0
Gallery at:
http://gallery.sohc4.net/main.php?g2_itemId=298318