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SATANSAM

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    GSX750ES REVS SUPER HIGH AVTER INSTALLING CARBS

    in Air Cooled

    Posted

    13 hours ago, Pudzrx said:

    Start it up and when the revs are hanging , try removing individual ht leads one cyl at a time. See if the revs drop on any of them. I still think one cyl is overfuelling/ air leak , and hanging the revs up , which with cv carbs will pull them all up , which it shouldn't on slide carbs

    Thanx Pud, sorry but What do you mean by ht leads? 9_9

    GSX750ES REVS SUPER HIGH AVTER INSTALLING CARBS

    in Air Cooled

    Posted

    29 minutes ago, TonyGee said:

    bloody hell, 3 sets of carbs can't all be wrong !!!!!!  what about a crack/hole in the inlet tract of the head ?  just grasping at straws now 

    Well I wasted 3 spray cans of brake and carb cleaner all around the head and whole motor with no difference, actually, that's how I found the leak at the head gasket that way, opened motor and changed it but hardly any difference 

    GSX750ES REVS SUPER HIGH AVTER INSTALLING CARBS

    in Air Cooled

    Posted

    Well, I've tried 3 sets of carbs, all the same and same problem... Floats correct, new float needles and seats with all new Orings, new Orings in 4 chokes, diaphragms perfect, slides shu down well, vacuum line correct and fuel pipe from tank/eternal “tank", new bowl gaskets, fuel screws with springs-washers and oring, new throttle shaft Viton new rings, butterflies installed correct (torch through and no light, maybe a tiiiiny bit but na).... Sync gauges correct, smaller pilot jet = no good, bigger pilot jet = no good, compressed aire everywhere after cleaned individually with 1L water, 200ml Amoniac, 20ml fairy and 10ml acetone, then carb cleaner in spray, then compressed air...Intake boots and o rings correct with no air leaks... Correct valve clearance, correct Cam timing when assembled the motor, no leaks through spark holes...I was going to check Ignition timing but it all depends on the CDI on this bike, Tested the cdi and it Sparx BUT I'm not sure it works correctly "dosifying" the sparks (Maybe too advanced?), so I found a "CHEAP" CDI... This is something personal as I disassembled these carbs before, mounted them and the bike run fine, but this time...Remember at the beginning of this post, 2 of the 3 cables coming from the alternator fried cause of hanging over the motor...Man...this thing is gonna work or I'll cut my balls off... But I'll use them before that I hope!!! WHISKY TIME¡ FIEW!! :o

    GSX750ES REVS SUPER HIGH AVTER INSTALLING CARBS

    in Air Cooled

    Posted

    On 5/7/2021 at 2:44 PM, TonyGee said:

    I can't see the float heights causing the hanging idle ? but yeah it will effect the mixture. ive seen floats set at all different heights and it would idle ok.  but its worth a try I suppose ;)  

    Yep TOny U R right...Tried them high and low...Nothing happened...I've got the carbs AGAIN in UCleaner, acetone with water and fairy...And then gonna fillem woth Motul carb cleaner...CRAZY. 

    GSX750ES REVS SUPER HIGH AVTER INSTALLING CARBS

    in Air Cooled

    Posted

    1 hour ago, Blubber said:

    Please step back and look at what you are trying to do.

    increasing that value lowers the fluid level.

     

    Carefully study enclosed picture to understand what i am saying.

    unnamed.jpg

    Yes I understand that, and of course measured without the gasket, but seems like my bike is running rich? Like if I had the choke on (all 4 chokes are clean and sealed). Hanging idle is synonymous if LEAN MIX, but: COULD THERE BE HANGING IDLE CAUSED BY A RICH MIX? Like if the needle seat leaked...My bike looks like is running rich. Thanx Blubber!

    GSX750ES REVS SUPER HIGH AVTER INSTALLING CARBS

    in Air Cooled

    Posted

    Wassap amigos!

    Still having the same mthrfckn problem...Tried leaner jets and the same hanging idle BUT spluttering around a bit, so jets back to 45 like manual sais.

    Now, as I've got all carbs set perfectly and sealed (Even original throttle shaft seals), everything clean...I read  from a guy that after having the same blimming problem as me, months later his friend told him to raise the floats 1mm from what manual sais...I'm gonna try it, mine sais 22,44mm...Now they are about 22,65 as manual let's a 1mm play, I'm setting them to 23,44mm aprox and see what the heck happens!

    GSX750ES REVS SUPER HIGH AVTER INSTALLING CARBS

    in Air Cooled

    Posted

    35 minutes ago, Gixer1460 said:

    Never seen anyone use grease for a headgasket but can't imagine any reason not to use it, nor that it will cause problems! As it is less compressible than a normal sealant, thick grease 'could' stop full clamping force being applied but a thin smear - don't sweat it!

    Thanx Gix, I should simply stick to the manual instead of taking any notice of the asshles that come round the garage with beer..."They are all top level mechanix"....

    GSX750ES REVS SUPER HIGH AVTER INSTALLING CARBS

    in Air Cooled

    Posted

    On 4/10/2021 at 2:16 PM, KATANAMANGLER said:

    You do know why there are only 3 adjuster screws right?

    They are balance screws. The one on the far left balances carb 1 an 2. The one on the far right balances 3 and 4 and the one in the middle balances the two pairs.

    If you don't do it in that order you can go round in circles for a while. 

    Definitely start with a compression test and make sure valve clearances are in spec if you can.

    Thanx katana, yes, but the carbs couldn't get balanced caused by an air leak in through a faulty head gasket, cylinder 3 (refference carb without sync screw) had had L the air leak, hanging idle, so to have all carbs synced to refference carb (too much air in it) meant bike hanging. 

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