97 gsxr 750 doesn't idle back down

My Toyota Quantum 2.7GL idles but does not rev up. i ve ...

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Jan 5, 2013 - My Toyota Quantum 2.7GL idles but does not rev up. i ve changed the fuel pump and filter but still it starts, idles - Toyota 2007 Quantum 2.7 question. ...SOURCE: 1985 toyota 4x4 22re missing and rough idle. Have you pulled ...
Toyota quantum d4d idle but when u rev it doesn't pick up ...www.fixya.com/.../t24694524-toyota_quantum_d4d_idle_but_when_u_...Jun 24, 2014 - Toyota quantum d4d idle but when u rev it doesn't pick up reves - Toyota 2007 ... what will cause the car not to start after cylinder head repairs?Toyota quantum 2.7gl idles but when u rev it doesn not pick upwww.fixya.com/.../t17117064-toyota_quantum_2_7gl_idles_but_when_...Mar 14, 2013 - Toyota quantum 2.7gl idles but when u rev it doesn not pick up reves - Cars ... I have a 2006 toyota quantum,the engine starts,i doesn't idle,no ... and rear wheels will not drive? just makes terrible fringing noise but will drive in ...VWVortex.com - help, volkswagen idles but wont rev up 2liter 16 ...forums.vwvortex.com > ... > Golf II & Jetta II

When was the last time a full tune up have been done? A bad intake gasket would do that.

check for intake leaks generally this is the first thing you check for a erratic idle

Sounds like carbs need a good clean out. The 1991 model GSXR was not Electronic Fuel Injected. A model this old may also be subject to the carbs being worn out and letting in unmetered air around the screws etc, which may be keeping the revs up at idle and causing a lean idle.
Applying load will source fuel from the next jet and hide the problem. Applying choke holds back some air which will help as it sounds like too much air at idle. This will not help as much when bike is warm.
Bottom line is your carbs need a good clean and service and maybe if they are leaking air they might need to be replaced.

First impression was why would anyone rev their motorcycle to 9 grand in neutral? I could see if you were in gear clutch pulled and ready for a "drag" or Race Start but in neutral?

Anyway I can't hear it so if the sound is like it hits 9k and starts popping then two things either an over rev limiter which I doubtr because the engine red lines at 13,500 OR you have a set of spark plugs breaking down under load

run a can of Seaforam in the tank..purchase from Autozone put in 1/3 to two gallons gas drive it around for at least 10 miles to insure it cleans out the whole carb system.if that doesnt work, check all carb hose fittings when bike is at idle spray some Chemtool B-12 ( also at Autozone) around the carb hoses and manifolds..if idle increses thats your problem. Caution: chemtool is very toxic wear gloves and a mask.

the idle adjustment on the oil cooled motor is in between carb 2 and 3. you have to take the right side fairing off to do so

the carbs are proberbly blocked, you might have rust in your tank that will keep blocking, put an inline fuel filter in and get carbs cleaner, you also got a flat battery, give i little revs until it starts then adjust the idle

I have a 99 a4 and it revs to about 1200 at first start, after a minute or so it lowers to about 750 rpm which is the norm.It has done this since it was bought. Also when the air condenser/conditioner is on it idles high. The condenser is run off the engine so i also lose a few horsepower.

I'm not sure what "transmission pulls when changing" means though, needs clarification.

clean the carbs!