I'm just in the process of completing a refresh of my GT750A (owned since 1997) and I've found an issue with the oil pump
I've found that the lever arm sticks on its return stroke about 2/3rds way back
The lever arm will return when driven back by the carb linkage but not on its own
The arm doesn't appear to be catching externally so I'm concerned that there's something wrong inside, how critical I don't know!
I do have a spare pump I picked up a few years ago but not sure it 1) is correct for the bike and 2) works!
I guess my questions are:-
- is an oil pump easy to disassemble, does anyone have photos of a strip down?
- how do I check that my spare oil pump is for a 76 GT750 (any markings)?
- is there any way to check that my spare pump is working?
So close to getting the bike back on the road so any help would be fantastic
Many thanks
Neil
GT750A Oil Pump Arm Sticking
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- Posts: 3693
- Joined: Wed Jul 20, 2011 3:40 am
- Location: Sydney NSW Australia
Re: GT750A Oil Pump Arm Sticking
Hi, nothing to worry about, they all do this, a little bit on the forum about this if you do a search on the topic
The pump is fine All the gt750 pumps will work on all models.
Google "pink possum suzuki gt750 oil pumps"
The pump is fine All the gt750 pumps will work on all models.
Google "pink possum suzuki gt750 oil pumps"
Cheers.
Roger
GT750A.
Roger
GT750A.
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- Posts: 3118
- Joined: Wed Sep 26, 2012 7:33 pm
- Location: Prestatyn.Wales
Re: GT750A Oil Pump Arm Sticking
Hi
As Roger says the oil pump arm only returns back down after several revolutions and although very reliable can be damaged by owners trying to force it back.
Here is the link http://www.pinkpossum.com/GT750/Oilpump.htm
As Roger says the oil pump arm only returns back down after several revolutions and although very reliable can be damaged by owners trying to force it back.
Here is the link http://www.pinkpossum.com/GT750/Oilpump.htm
NO SMOKE .......NO POKE
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- Posts: 30
- Joined: Sun Oct 14, 2018 9:37 pm
Re: GT750A Oil Pump Arm Sticking
Guys, this is great news, thanks
The pump has always worked fine and I couldn't understand why there would suddenly be a problem
Means I should be back on the road soon!
Thanks again
The pump has always worked fine and I couldn't understand why there would suddenly be a problem
Means I should be back on the road soon!
Thanks again
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- Posts: 30
- Joined: Sun Oct 14, 2018 9:37 pm
Re: GT750A Oil Pump Arm Sticking
On the question of my spare oil pump, how do the 750 pumps differ from the 550 or 380?
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- Posts: 3693
- Joined: Wed Jul 20, 2011 3:40 am
- Location: Sydney NSW Australia
Re: GT750A Oil Pump Arm Sticking
Hi,Pumps are pretty much the same,
GT550 around 83% flow rate of the GT750
http://www.oldjapanesebikes.com
GT550 around 83% flow rate of the GT750
http://www.oldjapanesebikes.com
Cheers.
Roger
GT750A.
Roger
GT750A.
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- Posts: 30
- Joined: Sun Oct 14, 2018 9:37 pm
Re: GT750A Oil Pump Arm Sticking
Are there any external identifying marks so I can determine if mines a 750 pump?
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- Posts: 3118
- Joined: Wed Sep 26, 2012 7:33 pm
- Location: Prestatyn.Wales
Re: GT750A Oil Pump Arm Sticking
If you look at the pink possum site I posted earlier you will see a subject headed which pump do I have. There are some numbers on the actuating arm to identify it.
NO SMOKE .......NO POKE