Question about 1993 kawasaki ZZR 600

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Engine cut out under revs but will idle

The bike starts on full choke no worries but after warming up for 5min if you try and hit the throttle it just wants to bog down and cut out. It has new plugs and i've flushed the fuel tank and have premium in it. Would it be a carbie problem or could it be an electrical problem (regulator or something) Cheers Keith.

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  • bongxz Mar 06, 2009

    My bike run smoothly until 5th gear, but lost power when shift to 6th gear. The speed drop from 110mph to just 64mph.

    Cheers

  • Anonymous Apr 13, 2009

    I have a sim ular prob quick up through gears but then struggles to get past 70/80 somtimes breaks through thogh, im told it may be a coil prob???

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Fueling problem. its not getting enought fuel from the carb. check the pipes, jets and floats.

Posted on Jan 14, 2009

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I have a 2003 ttr225 I can get the bike to start with the choke on ihave to let it warm up for an extremly long time before I can push in the choke . once the bike is warm and I hit the throttle hard ,...


Sounds like the idle circuit in the carb is restricted. The engine is running on the choke only. When the engine reaches a certain temp the fuelthat does get is more readily burned allowing you to back off the choke. The choke probsbly can't be completely opened? right? Fuel quality is also something to consider Oil content in fuel affects combustion temps and volatility. _good luck_Ned_



Nov 16, 2010 | 2003 Yamaha TT-R 225

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My BMW R1100RT is difficult to start. Must use full choke, give full throttle once and then hit the start button. It then starts just when I let go of the start button. Often it refuses to start and then...


The choke actually just opens the throttle bodies a little (the bike is fuel injected). Try using putting on the 'choke', then pressing the start button, but dont touch the throttle. Does it start ok? Also, when started, if you use the 'choke' does it increase the engine speed? If it does not, then you need to set it up correctly.
Let us know how you get on.

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1 Answer

Won't idle until it is warmed up


Depending on the type of intake system, if it's a normally carburettored bike, there is an air mixture screw on your carby(s). Set this screw at one and one half turns out from being screwed to stop. Run bike till it is warm and set IDLE screw or throttle stop at optimum idle revs. Without using choke or throttle, turn the air mixture screw slowly in or out till revs build to highest level. Reset idle screw or throttle stop to set revs back down to optimum level as before. If this does not cure your problem, depending on if it's a 2 or four stroke, single or multi cylinder engine your problem may be one of many from fuel ratio, valve rocker clearance, ignition, plug range etc....specify make/model for proper info.
Cheers

May 19, 2010 | Motorcycles

1 Answer

Bike wont kick start or idle , it will coast


first drain the carby, then set your air mixture screw 2 turns out, from the fully turned in position. The starting proceedure is as follows, when the engine is COLD, turn on fuel, pull on the choke fully, and kick the engine over. DO NOT use any throttle, when the engine is cold, and the choke is on. Remember Choke on, NO throttle.
When warm, no choke, and a little throttle when kicking.

May 12, 2010 | 2003 kawasaki KX 125

1 Answer

Keihin CVK-D36 carbs on a 20 yr old ZZR 600 motorcycle. Bike starts fine on choke and idles ok when warm. The engine revs up fine on the choke. As soon as the throttle is twisted the engine stalls. The...


It sounds like your bike has been sitting in storage for an extended period of time (a year or more) - and the carburetors are plugged up. If this is the case, they will need to be completely disassembled and cleaned out.
If it hasn't been sitting (and the carbs aren't plugged up) then check that all of the normal tune-up items have been performed, especially valve adjustment, oil and filters, spark plugs, etc. If this fails to produce positive results, perform a compression check on the engine. Each cylinder must be able to produce at least 140 psi of compression in order to run and idle properly.

Nov 07, 2009 | 1990 kawasaki ZZR 600

1 Answer

I need tuning specs for my 1982 suzuki gs 750.


You need to fix the fueling first - without fuel it won't run!
Your other problem sounds like an air leak - either the manifold or the carb. Check by spraying WD-40 or CRC at the manifold and carb join while the bike is running - if the revs change (either up or down) you have a leak.

Jun 28, 2009 | 1981 Suzuki GS 750 L

1 Answer

2000 yzf R6 inconsistant idle under choke cuts out when punched


Yes. Sounds like main jets are blocked. Gas will start to varnish after a couple of months. This builds up over time and sticks the main jets. Go to this website and select discuss this bike.http://www.bikez.com/motorcycles/yamaha_yzf-r6_2000.php

Apr 30, 2009 | 2000 Yamaha YZF-R6

1 Answer

1984 aspencade starts w/choke and revs up, runs smooth. Take off


My 'wing won't run unless it has been warmed up some. I would suggest that you r&r your carbs to make sure the jets in the bottom are working correctly. They tend to get plugged up, especially after sitting & the aluminum flaking off inside... Rick

Apr 05, 2009 | 1982 Honda GL 1100 Aspencade Gold Wing

3 Answers

Only running on full choke?


The jets on the carb need to be cleaned.

Jan 06, 2009 | 2005 Hyosung GT 650 R

1 Answer

Wont start without choke


I am having a similiar problem. bmw r 1100 s will only start with full choke and will die if I cut off choke or give it any throttle. This is my first bike and it has been sitting in a garage for 2 years. I took out the carbs, cleaned them and rebuilt them. I didn't find any residual in the carbs and they were very clean. Today, I was able to get the bike running and took it down the neighborhood but after the bike warms up it idles at 6K! Man... If I can't find any answers from this forum, I will probably drop it off at the motorcycle shop just down the hill from me. Any suggestions anyone? I think I will try to drain the fuel and give it new gas. But still....

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