Airwolf222

The spring came from a packet of odd springs bought in home depot in usa where I am at the moment I have a spare ill post it to you when I get back to uk in march if you like ! That spring made a massive difference to my carbs as it's need to keep both pairs in sync , with it missing the right hand pair butterfly's were open 12 mm ish whilst the left pair had not opened at all !

Hi guys thanks for all your thoughts carbs off again all checked out ok bench set throttle butterfly's as suggested all good moved the throttle open by moveing the part where the cable connects all good move it with the cable and right pair open 12 mm before the other pair caught up found a spring missing looked at pics I took when first had bike it was missing then so I did not notice sod it but sorted now

Hi oily spanner the plugs out of cyl 1 3 and 4 shows signs of fireing number 2 still looks white, there all new plugs, I have swoped plug leads over from 2 to 3 as there fed from the same coil i have a spark at all plugs but number 2 exhaust is cold compared to the other 3 carbs are in bits again but I can see nothing amiss starting to think valves or head gasket next

Thanks for your thoughts bioler dude I'm testing on a temporary tank during the fault finding and the robbers are all ok cards are off again for another check through can't find a lot wrong getting pissed off now lol

Hi thanks for the reply yes bike is standard with a unknow exhaust can so off with those carbs again oh well one things you may be able to shed some light on when You look at card from airbox side there are to holes facing you ,the jet on the right has a hole in it the one on the left seems blocked on all carbs s this the case Thanks andy

Hi guys I'm sure thus has come up before but I'm new to this forum and looking for help ! I have a 1991 gsxr 750 m barn find all sorted except cyl 1 and 2 cold exhaust eg 100 deg; 3 and 4 250 deg and runs rough new plugs and coils spark at all plugs coil 1 feeds 1 and 4 coil feeds 2 and 3 carbs been off and cleaned in ultrasonic bath as many jets and orifice cleaned as possible going for valve clearance next compression equal at 125 psi cold ! Had one of these bikes back in 1992 so would like this old girl rideable again thanks fellas andy