Top 20 1990 kawasaki ZZR 600 Questions & Answers

Check the idle, and seems to need a carburetor job, get iridium sparckplugst that will help too. But carb is the main reason

carb needs ajust or rebuild--age-----getta repair manual for details--if batt is weak etc the spark may not be rite to burn fuel causing excess

it could be your starter relay itself.they fault every now and then.make sure its not the starter solenoid.if your battery power is down a little the starter will not engage.your battery should read about 12.8 volts or morewhen well charged.check it with a multimeter with engine off.then with engine running it should read 13.5 to 14.5 volts or thereabouts.if the battery is low to begin with, charge it first then try again after battery has rested for an hour or two.if the battery is not charging that may be the problem.if the battery is 12.8 or more it is ok.if you are not getting 13.5-14.5 volts at the battery terminals with the engine running then you may have a problem with the charge wire coming from the regulator,or the regulator itself or the ground/earth wire at regulator or even back at the the stator in the engine case.there should be 2 or maybe 3 wires going into casing depending on your system.
try the battery test first and then see if its charging from regulator.if both of these pass then it is very likely the relay.although do not rule out the possibility that the solenoid on the starter could be sticking a bit.hope i have been of some help.

Hi.At the moment the only service manual I have got is this one. Please copy and paste the manual link in the browser and see if the manual can help: http://www.motorkari.cz%2Fupload%2Ffiles%2Fmanualy%2F767_kawasaki_zzr600_-90-92_service_manual_-spanish-.pdfI will be able to check my database in the next 24 hours. I will post here if I find more documentation.

Sounds to me that the float may be stuck in the raised position for that carb. This will keep the needle vavle closed preventing fuel entering the float chamber. has the bike been left in the garage for a while on its side stand if so that might also indicate that the float pivot pin is worn and as the fuel evaporates the float has jammed against the side of the float chamber. Carb cleaner slight tapping of the side of the carb float chamber and possible a squirt of compressed air. All worth a try before a massive strip down. Jim ex heli-mech.

don't have to take fairing off, under the headlight above folks remove small panel about 4 screws, reach up behind this to get the bulb, a trickee, but far more easy then removing fairing

all vehocles builtl since the 80s use unleaded, what octane level is up to you

It can be anythone of a number of things, stripped cog, worn shaft, worn selector drum. Unfortunately all of them inside the casing. To get at it entails removal of the engine and a complete disassembly. DIY is not recommended if you're not knowledgeable on the inner workings of a bike engine or at least have a good repair manual, since you'll be diassembling that motor in totality.

Worn rings is the most likely cause.
Give the old girl a compression test.

contact your nearest kwaka dealer by phone ,they are allways very helpfull .the answer is only a phone call away.

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.

try a motorcycle salvage yard-they know bikes or see your local dealer and talk to a tech kawa motor corp has an 800

hi buddy what temp does it reach when it starts overflowing ??

Blown head gasket or barrel O rings, blocked radiator, stuck stat.
If its the head gasket or O rings then the overflow bottle will fill up then bubble.Radiator can be taken off and flushed. Stat can be removed and checked in a pan of boiling water

if its running hot, then theres another problem. even if the radiator has a small leak, it shouldnt overheat if its kept full. my next guess would be an intake leak somewhere. maybe the carburetor is loose and needs the clamps tightened? or you have a loose intake manifold? also check to see that the exhaust header is not coming loose. I wouldnt think it would be a gasket, or you sould have noticed water in the oil, and alot of smoking.

u know that your question features a 600kawa and u r talking about an atv 300 anyway hopefully u have aservice manual if not git one in bookstore or library--r u using enuf torque on that bolt-probly need extension on the ratchet handle plus spray it with wd 40 and maybe tap it resonably with a hammer-wear gloves and take it slow

Either the switch on the handlebars isn't making contact. Or the shift motor on the front differential is broke.

Check the seal behind your water impeller there are o rings back there if one of them goes bad you will leak antifreeze into oil, your impeller is run by the oil pump i believe, you should not see oil in the water also your bike will run fine but when hot will foul the plug with water look for white smoke sometimes and the smell of anti freeze on start up
i have a 400 4x4 doing the same thing new piston rings and top end now lossing water but runs great oil looks real thin
took to the dealer to fix this week will let you know how i make out.

try the fuel pump as these are susspect.

Hi, Sitting not good ! That is why the petcock has an off position. Spray some starter fluid or some fuel in the carb intakes and see if cranks, If it does, the carbs have to be disassembled and cleaned. Good Luck to you!