Hey everyone! I'm new to the boards here and new to restoring bikes. I've had a lot of experience working on cars out of necessity, and am somewhat mechanically inclined. I've always wanted to get into restoring old vehicles and I found an old GT 550 in my grandpas barn, figured this is as good a place to start as any.
I believe my bike is 1975. It says 8/74 as manufacture date and lists the vin as gt550-49739 so I think that puts me in the model M category of 1975.
Anyway, I have no clue where to even start on this bike. I've got a clymer manual and I was thinking of using that to guide me on the "how to", but I'm not sure where to start. Any advice or pointers would be most welcome. Thanks in advance!
Photos to come once I figure out how to post them. Ha ha
First restoration: GT550. Advice welcome
Moderators: oldjapanesebikes, H2RICK, diamondj, Suzsmokeyallan
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- On the street
- Posts: 10
- Joined: Tue Sep 22, 2015 8:45 pm
- Country: United States
- Suzuki 2-Strokes: 1974 GT 550
- Coyote
- Moto GP
- Posts: 3404
- Joined: Tue Oct 21, 2008 2:41 pm
- Country: USA
- Suzuki 2-Strokes: GT550x2, GT750, GS1000
- Location: Tulsa, Oklahoma
Re: First restoration: GT550. Advice welcome
Like everyone said in your other post, we all have different opinions of where to start. If it were mine, I would haul it to the car wash. If you can't do that, rent a pressure washer and bring it to the bike. It's no fun at all trying to work with such serious dirt. Cover the carbs with plastic bags retained by rubber bands.
These 550's (I'm on my third) are notorious for the mufflers rotting out internally. Take off the muffler and shake it vigorously. If you heat crap rattling around inside, the baffle plates are likely shot. New ones are not available. The set's you find on eBay are generally worse than what you already have. You have 2 options. You can run without baffles. With that there is a slight effect on performance as well as a horrible sound. Your other option is to shell out $600 for a set of expansion chambers
Of the three 550's I've owned, I have been completely through 2 of them.I can tell you first hand you are looking at a minimum of $2,000 to have something you wouldn't be embarrassed to be seen on. Maybe closer to $3,000. Don't keep track. You'll never get it back anyway..
There's a ton of parts still available for these old Indy's. However, the prices seem to go up daily.
These 550's (I'm on my third) are notorious for the mufflers rotting out internally. Take off the muffler and shake it vigorously. If you heat crap rattling around inside, the baffle plates are likely shot. New ones are not available. The set's you find on eBay are generally worse than what you already have. You have 2 options. You can run without baffles. With that there is a slight effect on performance as well as a horrible sound. Your other option is to shell out $600 for a set of expansion chambers
Of the three 550's I've owned, I have been completely through 2 of them.I can tell you first hand you are looking at a minimum of $2,000 to have something you wouldn't be embarrassed to be seen on. Maybe closer to $3,000. Don't keep track. You'll never get it back anyway..
There's a ton of parts still available for these old Indy's. However, the prices seem to go up daily.
I was born with nothing and still have most of it left.
.
1978 GS1000C
1976 GT550 ongoing money pit.
.
1978 GS1000C
1976 GT550 ongoing money pit.
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- On the street
- Posts: 10
- Joined: Tue Sep 22, 2015 8:45 pm
- Country: United States
- Suzuki 2-Strokes: 1974 GT 550
Re: First restoration: GT550. Advice welcome
Coyote wrote:Like everyone said in your other post, we all have different opinions of where to start. If it were mine, I would haul it to the car wash. If you can't do that, rent a pressure washer and bring it to the bike. It's no fun at all trying to work with such serious dirt. Cover the carbs with plastic bags retained by rubber bands.
These 550's (I'm on my third) are notorious for the mufflers rotting out internally. Take off the muffler and shake it vigorously. If you heat crap rattling around inside, the baffle plates are likely shot. New ones are not available. The set's you find on eBay are generally worse than what you already have. You have 2 options. You can run without baffles. With that there is a slight effect on performance as well as a horrible sound. Your other option is to shell out $600 for a set of expansion chambers
Of the three 550's I've owned, I have been completely through 2 of them.I can tell you first hand you are looking at a minimum of $2,000 to have something you wouldn't be embarrassed to be seen on. Maybe closer to $3,000. Don't keep track. You'll never get it back anyway..
There's a ton of parts still available for these old Indy's. However, the prices seem to go up daily.
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- Around the block
- Posts: 55
- Joined: Fri Oct 31, 2014 2:08 pm
- Country: usa
- Suzuki 2-Strokes: gt750A
- Location: Spencer, Massachusetts
Re: First restoration: GT550. Advice welcome
Everything Coyote says is 100% true... UNLESS you are a GLUTTON for punishment and are not in any hurry AND have lots of extra cash to blow, reviving old junk probably ain't for you. BUT if you ARE (see above) then have at it. In the long run you'd be better off buying something done...IF you find the right one. I am knee deep in a GT750A resto and I know all that and am STILL doing it and constantly looking for others... I NEED my head examined...




- Coyote
- Moto GP
- Posts: 3404
- Joined: Tue Oct 21, 2008 2:41 pm
- Country: USA
- Suzuki 2-Strokes: GT550x2, GT750, GS1000
- Location: Tulsa, Oklahoma
Re: First restoration: GT550. Advice welcome
I think it's some kind of plague. I have it too.I am knee deep in a GT750A resto and I know all that and am STILL doing it and constantly looking for others.

I was born with nothing and still have most of it left.
.
1978 GS1000C
1976 GT550 ongoing money pit.
.
1978 GS1000C
1976 GT550 ongoing money pit.
-
- Around the block
- Posts: 55
- Joined: Fri Oct 31, 2014 2:08 pm
- Country: usa
- Suzuki 2-Strokes: gt750A
- Location: Spencer, Massachusetts
Re: First restoration: GT550. Advice welcome
We NEED to find a cure! 

- Alan H
- Moto GP
- Posts: 3250
- Joined: Thu Feb 16, 2012 11:50 am
- Country: England
- Suzuki 2-Strokes: 4 x GT550s - J, M, A, B.
- Location: The Republic of South Yorkshire
Re: First restoration: GT550. Advice welcome
No. I like that kind of ill. 

Think of how stupid the average person is, then realise that half of them are more stupid than that.