GT750 oil pump installation

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twittemann
On the street
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Joined: Sun Sep 02, 2018 12:10 pm
Country: United States
Suzuki 2-Strokes: GT 750B
Location: Richmond, VA

GT750 oil pump installation

Post by twittemann »

Hello everyone. I have completed my engine rebuild and have been having trouble with getting it to kick over. I'm wondering if the plugs could be oil fouling because the oil pump has been installed 180 degrees out. Any thoughts? Thanks.
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tz375
Moto GP
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Location: Illinois

Re: GT750 oil pump installation

Post by tz375 »

That would be hard to do. I suspect that if it's full of oil, that the check valves may be leaking and allowing oil to drain into the bottom end on one or more cylinders.
GTandcbr
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Suzuki 2-Strokes: suzuki gt 550j
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Re: GT750 oil pump installation

Post by GTandcbr »

It really depends on how many times you have kicked it over. We really need more information to try and help. Have you checked to see if there is a spark? Take a plug out lay it on the cylinder head kick it over. Is there a big blue spark? Are you sure it's oil fouling the plug or is it petrol?
If it is definately oil on the plugs STOP kicking it over. It's possible as TZ says that the crankcase is full of oil maybe due to faulty oil feed valves and this will cause hydraulic lock and damage the engine. Remove the SRIS valves and allow the oil to drain overnight.
98 carb Blackbird and GT550j
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jabcb
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Suzuki 2-Strokes: 69 T350 thru 75 GT750
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Re: GT750 oil pump installation

Post by jabcb »

If you have the bike running & the pump lever is 180 degrees out, the pump might deliver enough oil to eventually foul the plugs. That happened to me, but it took a number of miles of riding for it to happen.

If you have been generously lubeing everything up as you assembled the bike, than I’m inclined to think that most of the oil to be due to your assembly efforts.

What did you mean by “having trouble getting it to kick over”? Are you using the starter & having troubles getting the bike to fire up? Or are you trying to kick start the bike & getting a lot of compression resistance?

Have you tried to kick the bike over with the plugs out?
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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