GT550 clutch cover + points cam question

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jabcb
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GT550 clutch cover + points cam question

Post by jabcb »

This is for the GT550 cafe build.

I have the clutch cover off and need to disassemble the points cam assembly.
Didn’t find any guidance in the shop manual. What’s the best way to do this?
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
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Alan H
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Re: GT550 clutch cover + points cam question

Post by Alan H »

http://www.alpha-sports.com/suzuki_parts.htm" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;

Look at year = 1975 (M)
Contact Breaker - Nippon Denso (doesn't matter if you have the other, this shows more detail).
Don't lose item 29 - pin!!!
It locates the 'propeller' and points cam.
Think of how stupid the average person is, then realise that half of them are more stupid than that.
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jabcb
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Posts: 4240
Joined: Mon Dec 13, 2010 4:32 pm
Country: USA
Suzuki 2-Strokes: 69 T350 thru 75 GT750
Location: southwestern Pennsylvania

Re: GT550 clutch cover + points cam question

Post by jabcb »

How do I stop the shaft from turning when I remove the cam nut?
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
Alan H
Moto GP
Posts: 3160
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: GT550 clutch cover + points cam question

Post by Alan H »

Wrap the inner end in a cloth and hold it with pipe grips, or just put the cover back on the engine and line up the cutaway. You won't have to hold it then.
Think of how stupid the average person is, then realise that half of them are more stupid than that.
User avatar
jabcb
Moto GP
Posts: 4240
Joined: Mon Dec 13, 2010 4:32 pm
Country: USA
Suzuki 2-Strokes: 69 T350 thru 75 GT750
Location: southwestern Pennsylvania

Re: GT550 clutch cover + points cam question

Post by jabcb »

Thanks.

The crank is getting rebuilt & I need to get the cover polished + clear coated. So I’ll give the other method a try.
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
jabcb
Moto GP
Posts: 4240
Joined: Mon Dec 13, 2010 4:32 pm
Country: USA
Suzuki 2-Strokes: 69 T350 thru 75 GT750
Location: southwestern Pennsylvania

Re: GT550 clutch cover + points cam question

Post by jabcb »

Turned out to be easy with a tool that I already had.
Used an adjustable hook spanner, a Proto C472, that looks like this:
Image

Now that I have the cam drive out,
(1) how do I get the tach drive out, &
(2) how do I get the bearings out without ruining them?
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
jabcb
Moto GP
Posts: 4240
Joined: Mon Dec 13, 2010 4:32 pm
Country: USA
Suzuki 2-Strokes: 69 T350 thru 75 GT750
Location: southwestern Pennsylvania

Re: GT550 clutch cover + points cam question

Post by jabcb »

The tach drive was easy. Just attached the old tach cable and used it to pull the tach drive out.

Any tips on getting the bearings out without ruining them?
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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