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Shakey225

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Posts posted by Shakey225

    GSX750ES REVS SUPER HIGH AVTER INSTALLING CARBS

    in Air Cooled

    Posted

    Could the frame be slightly out of line such that when you torque up the engine mounts it is putting flex on the motor somehow, and this is somehow introducing an air leak?? I guess you could try loosening all the engine mounts (but keep them in place obviously), run the bike and see if it is better. If it is then start tightening up the mounts and see what happens?

    Good luck!

    • Like 1

    GSX750ES REVS SUPER HIGH AVTER INSTALLING CARBS

    in Air Cooled

    Posted

    1 hour ago, SATANSAM said:

    Found the issue HEAD GASKET :| Found a bit of oil between exhausts 4 and 3, sprayed contact cleaner and up she went, sprayed again and up she went again...Only there, and it's carb 3 the one with less vacuum and less compression. Correct me if I'm wrong. Thanx 4 everything folx, I've bloody well learnt how to clean a carb!!! 

    IMG_20210315_184817.jpg

    IMG_20210315_184805.jpg

    Well well well. Congratulations on getting to the root of the problem! I never would have guessed h/g. Good thinking to spray around the area too.

    That was quite a ride!

    • Like 1

    Wiring Diagram - GSX 750 ES 1988

    in Air Cooled

    Posted

    Hi,

    Does anyone have the wiring diagram relevant to this particular model? Or can anyone confirm that it is exactly the same as the wiring diagram for 1986 (I will post a copy of the one I have below for comparison). I am trying to sort out a very odd starting issue (see my other post).

    Many thanks

     

    1896867256_GSX750ESSchema2.thumb.jpg.f3133043be4b78ddccc52431f7b34181.jpg

    Starter Lockout and Side Stand Safety Switch

    in Air Cooled

    Posted

    13 hours ago, jensvonbustenskjold said:

    It seems that the previous owner has done something wrong. If the side stand light is illuminated by the gearing into 1st gear, I would trace that circuit. 

    According the schematics, the side stand switch is an NO circuit. It's the only switch that should illuminate the lamp. Start at that lamp and following backwards. Why is it connected together with the neutral switch? That's the real question. 

    Disconnect the neutral switch and see what's happening?

     

    @Shakey225 EDIT:

    The schematics you have uploaded does not contain a side stand relay, as far I can see. Got me thinking, since you mentioned it. 

    Have a look at this manual, page 304. The engine kill-switch and the side stand are pulling the stand relay. So, if the side stand light is illuminated, then this relay is pulled. Are you sure the relay is removed? 

    As you can see you have something called "side stand diode". The diodes acting a logical "or" block. Both the side stand switch, and the neutral switch are connected to ground/negative, and the other end is connected to the "side stand relay". Both the neutral and side stand switch can kill the engine. 

    You have to find out what the previous owner did by reverse engineering, tracing wires. 

     

    Thanks for your thoughts and the link. It does indeed seem like there is a relay or diode somewhere in the mix causing issues but I'm b***ered if I can find one anywhere.

    I will try tracing the s/stand light back as you suggest.

    Thanks again jensvonbustenskjold

    • Like 1

    Starter Lockout and Side Stand Safety Switch

    in Air Cooled

    Posted

    Bike is a recently imported (from NL) GSX 750 ES from 1988. 

    The Problem:

    When on the centre stand the bike can be started, put into first gear and the clutch let out - all is well. As soon as the bike is on its wheels with the centre stand up I can start the bike in neutral but as soon as I engage first gear the bike stalls and the side stand warning light comes on.

    The side stand switch has been removed in the past and the wires cut and sealed. If I remove the wiring from the plug connector, the above situation occurs. If I connect together the two wires that run to the s/stand switch then the same occurs but with the s/stand warning light illuminated continuously.

    Looking at the wiring diagram (supplied by the previous owner) I can see there is the s/stand warning light switch, a diode in the dashboard wiring between the s/s warning light and the oil pressure warning light, and there is a starter lockout switch between the starter relay and the starter button.

    I have traced the G/Y wire from the relay, under the tank (which I removed) all the way to the handlebar switch. No lockout switch...

    Does anyone know where this lockout switch is located?

    I am assuming there must be a wiring issue that is affected when the rear shock is compressed but need to locate everything in order to check.

    I have checked all earth mounting points that I can find and have a replacement s/stand switch on order to see if returning to standard solves the issue.

    Any thoughts welcome.

    IMG_4018.thumb.JPG.2dfd708092d250f76051201194e4d8e2.JPG

    sidestand switch removal

    in Oil Cooled

    Posted

    1 hour ago, Blubber said:

    The way you type it... sounds to me like the side stand switch is still active.

     

    Thanks for the replies everyone.

    The switch itself is no longer there, just the cut wires behind the clutch cover.

    53 minutes ago, philwright said:

    Make sure you have connected the two wires on the Harness side and not the stand side of the junction , sounds like your switch is still live.

     

    I'll double check that.

    54 minutes ago, TonyGee said:

    probably not related but worth a check,  i had the same problem with my B12 cutting out when i put it in gear, i traced the problem to a bad earth. the bandit has a small earth wire that branches off from the main battery earth, it has a spade connector that was corroded once cleaned up all was well in the world. worth checking all your earths anyway just for piece of mind. :tu 

    Good shout, I'll check that too.

    sidestand switch removal

    in Oil Cooled

    Posted

    20 hours ago, TonyGee said:

    no just connect them together on the harness. 

    Thanks TonyGee. I tried that this morning and all went well with the bike up on the centre stand. However when I take it off the main stand and it's on its wheels, the bike cuts out when I put it in gear and the s/stand light comes on ?!? 

    Any thoughts anyone?

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