Gt 550 (1977) Transmission check

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Dave Robbo
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Suzuki 2-Strokes: 380Gt 750Gt K9GSXR1000 Gt550 Titan 500

Gt 550 (1977) Transmission check

Post by Dave Robbo »

Hi guys im new to the forum i've just treated myself to a second bike which is in decent shape. Im looking to check transmission oil but cant find any information including in the clymer manual. So how do you check it and were? Thanks in advance.
Cliff56
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Re: Gt 550 (1977) Transmission check

Post by Cliff56 »

Look for a screw in the clutch cover, right behind the brake pedal. You'll need a 10mm socket or large philips screwdriver.
Remove the screw and that's your oil level!
It's number 36 in the picture. Just ahead and a bit below the kickstarter shaft.
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GTandcbr
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Re: Gt 550 (1977) Transmission check

Post by GTandcbr »

Just my personal view. I never use the oil level plug I always measure the quantity IN and OUT with a suit able measuring jug. I don't know which of your listed bikes you are doing but the amount of transmission oil required is cast into the cover near to the filler neck.
98 carb Blackbird and GT550j
Dave Robbo
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Re: Gt 550 (1977) Transmission check

Post by Dave Robbo »

Cheers guys im talking about the 550 Gt
GT750Battleship
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Re: Gt 550 (1977) Transmission check

Post by GT750Battleship »

GTandcbr wrote:Just my personal view. I never use the oil level plug I always measure the quantity IN and OUT with a suit able measuring jug. I don't know which of your listed bikes you are doing but the amount of transmission oil required is cast into the cover near to the filler neck.
yes, so do I, see my Post ''Oily Exhaust''
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jabcb
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Re: Gt 550 (1977) Transmission check

Post by jabcb »

You can see the oil level if you look down the crankcase oil filler hole.
So you can keep track of the oil level if you do something consistent like leave the bike on the center stand overnight.

This works for the twins, GT750 & GT550 but not the GT380.
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
Dave Robbo
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Suzuki 2-Strokes: 380Gt 750Gt K9GSXR1000 Gt550 Titan 500

Re: Gt 550 (1977) Transmission check

Post by Dave Robbo »

Very helpful all the above and a last question. Which is the transmission drain bung ? i've looked under the case and can see two around 17 mm approx ?
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jabcb
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Re: Gt 550 (1977) Transmission check

Post by jabcb »

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
GTandcbr
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Suzuki 2-Strokes: suzuki gt 550j
Location: Wales

Re: Gt 550 (1977) Transmission check

Post by GTandcbr »

The bolt that is flat to the case is the sump plug the one at an angle is the detent plunger spring bolt. Try not to disturb that one it affects gear changing.
98 carb Blackbird and GT550j
Dave Robbo
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Suzuki 2-Strokes: 380Gt 750Gt K9GSXR1000 Gt550 Titan 500

Re: Gt 550 (1977) Transmission check

Post by Dave Robbo »

thanks guys a big help.
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