Question about 1986 kawasaki ZL 900 A2 Eliminator

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MY 1989 ZL400 ELIMINATOR WONT REV PAST 5500RPM. The local garage has supposedly cleaned and balanced the carbs after the i bought the bike from someone who had it laid up for a few years. After a 12 mile journey the bike stalled and wouldnt restart, the battery had been freshly charged before i set off but there wasnt enough charge to fire it up when it stalled. neither would it start from bump starting. when jump starting it it fires up first time and when connected to a fresh battery, but still wont rev past 5500rpm under its own power. any ideas?

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6ya6ya
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Posted on Jan 02, 2017

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  • 126 Answers

SOURCE: engine runs, but it will not rev up past 2000-3000 rpms,

are you turning the choke off after its warmed up? most will not run with the choke on and warmed up.

also try running it with the gas cap open to see if you have a vent issue in your tank. if air can't get in, then gas can't flow.

if not a choke or vent issue, then try this. turn the petcock off and then disconnect the fuel lines one at a time going into the carb. start with carb fuel line #1 disconnected (and the rest connected) and in a coffee can, turn petcock on and ignition too. fuel pump should come on momentarily and inject some fuel. see how the quantity looks. reconnect the line to carb #1 and repeat for carbs #2 - #4. your looking for a decrease in fuel to a couple of cylinders.

if all looks fine, i would then focus on the carb floats & jets. have the carbs been off for a good cleaning lately? modern fuel breaks down quickly and could cause a gumming condition in the carbs. spraying the sea foam or carb cleaner into the carbs is bypassing the everything in the carb bowl (but it means the spark plugs are ok) so there could be an obstruction. i would look there first.

if uncomfortable removing the bank of carbs, you can try a quick fix first. with the petcock closed, open the drain screws of each carb and let the gas drain out. go and buy some yamaha carb cleaner (liquid in a black bottle) at a yamaha motorcycle dealer. mix it in a separate container with gas as recommended. close the drain screws on each carb. pour the mixture into each fuel line feeding the carb and let it sit overnight. DO NOT POUR THIS MIXTURE INTO YOUR TANK. its not a fuel additive, but a cleaner that will not harm orings or gaskets, but it will not ignite with a spark plug. open the drain screws the next morning and let the mixture pour out. reconnect the fuel lines to the carbs and test drive it.

if that didn't work, then removing the carbs for a good cleaning is my next step. good luck.

Posted on Jan 28, 2009

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SOURCE: ZZR400 turning but not firing

Dear hairybikeruk, Pl check your bykes relay. If its not working properly you may face the problem. It stops charging the battery though the battery might be a new one. Thanks.
Sunil Bhagwat
Mumbai
India

Posted on Feb 04, 2009

cape cod bob
  • 292 Answers

SOURCE: kawasaki zepher - stalled and now wont start

poor fuel, gummed up carbs. blocked fuel filter, if you in the US get some Berrymans B12 double the dose and put it in the gas, hopefully you can get it to turn and draw it through to the carbs, it should clean them out, also you can try the berrymans spray carb cleaner, remove air cleaner, make sure slider in carb is up and spray a bunch in.
did you have lights when it died or nothing at all?

Posted on Apr 03, 2009

Benimur
  • 6966 Answers

SOURCE: Ninja 250 wont start

Hi and welcome to FixYa,

Initially:

  • check for the presence of IGN+12 on one of the terminals of the ignition coil;
  • check that the other terminal has a pulsating voltage when cranking;
  • verify that all connectors are plugged in tight and no corrosion on the pins/terminals specially on the pulser wires;
  • exercise the sidestand and spray WD40 on the sidestand switch;
  • ensure that the neutral light is lit when starting;
  • exercise the clutch lever and spray WD40 on the clutch switch;
  • try starting with the clutch lever pulled.

Please postback results of tests.

Good luck and thank you for using FixYa.

Posted on Apr 28, 2009

  • 23 Answers

SOURCE: bike has very long crank time but will start with

time to clean the carb(s)

Posted on Apr 03, 2010

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