T350 Front Fork Rebuild

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SudookyT350
On the street
Posts: 32
Joined: Mon Oct 04, 2021 4:55 am
Country: United States
Suzuki 2-Strokes: 2 1970 Suzuki T350’s
Location: Southeastern US

T350 Front Fork Rebuild

Post by SudookyT350 »

I’m here once again needing help Lol. I’m still in the process of doing a major update/cleanup, and I would like to know the proper process of taking apart the front fork.

My research on parts diagrams has 6 seals I’m going to need. But I’m not sure how to get the fork completely disassembled. The front forks on bikes I’ve tinkered with before were screwed on and you had to take a clip out of the fork tube and it would come apart.

Other posts on this forum talked about the fork oil, and I’m most likely going to use 220cc of 30w engine oil since that’s an inexpensive tried-and-true alternative. It’ll be much better than the rusty brown oil that looked like chili water out of it!
“Life is the art of drawing without an eraser with only one sheet of paper.”
x2 1970 Suzuki T350II’s, June flavored and July flavored. 1974 Honda CR125M Elsinore
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jabcb
Moto GP
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Joined: Mon Dec 13, 2010 4:32 pm
Country: USA
Suzuki 2-Strokes: 69 T350 thru 75 GT750
Location: southwestern Pennsylvania

Re: T350 Front Fork Rebuild

Post by jabcb »

Service manuals from back then aren’t that great. Online copies are here: https://www.oldjapanesebikes.com/mraxl_ ... /index.php
A Haynes manual will provide more info. They are often listed on eBay.

Do your forks have gaters & external springs, or internal springs?
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 & 75
GT380 72
T500 69 project & 73 project
T350 69 & 71
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE
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SudookyT350
On the street
Posts: 32
Joined: Mon Oct 04, 2021 4:55 am
Country: United States
Suzuki 2-Strokes: 2 1970 Suzuki T350’s
Location: Southeastern US

Re: T350 Front Fork Rebuild

Post by SudookyT350 »

Internal springs. One is fully disassembled and the other one is stuck. They both have a half split tube, one came out easily and the other one is stuck solid. I’m not sure of the proper execution to get them out, so I’m making sure not to cause any damage.

That service manual from oldjapanesebikes.com is a real life saver. I made copies of it but some of the diagram layouts aren’t the best.
“Life is the art of drawing without an eraser with only one sheet of paper.”
x2 1970 Suzuki T350II’s, June flavored and July flavored. 1974 Honda CR125M Elsinore
User avatar
jabcb
Moto GP
Posts: 4241
Joined: Mon Dec 13, 2010 4:32 pm
Country: USA
Suzuki 2-Strokes: 69 T350 thru 75 GT750
Location: southwestern Pennsylvania

Re: T350 Front Fork Rebuild

Post by jabcb »

I have found problems like these are quite easily solved. A bike shop near me works on older bikes. (As opposed to dealers that don’t want anywhere near vintage bikes.)
I take problems I can’t, or don’t want to, deal with to them. This summer he installed new fork seals on both of my vintage Honda CBs.
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 & 75
GT380 72
T500 69 project & 73 project
T350 69 & 71
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE
User avatar
SudookyT350
On the street
Posts: 32
Joined: Mon Oct 04, 2021 4:55 am
Country: United States
Suzuki 2-Strokes: 2 1970 Suzuki T350’s
Location: Southeastern US

Re: T350 Front Fork Rebuild

Post by SudookyT350 »

I don’t know of any shops near me that would even attempt to mess with fork seals. Maybe a bushing press would suffice in my case? We’ll find out on this episode of Tom and Jerry :)
“Life is the art of drawing without an eraser with only one sheet of paper.”
x2 1970 Suzuki T350II’s, June flavored and July flavored. 1974 Honda CR125M Elsinore
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