Question about 1987 kawasaki ZL 1000 A1 Eliminator

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87 kawasaki isn't providing full power!!

There are no aftermarket parts. I didn't put new carbs on the bike i had meant on last post that the carbs had been flushed. After a few miles riding on the second treatment of seafoam, i noticed a little difference. i believe that the carbs jets are clogged up. because it runs fine at a 1400rpm idle, just doesn't have the pick up i know it has! could it be the carbs for sure?

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Hi again and welcome back to FixYa,

Appreciate much the rating on your first post.

Yes on the carbs. At this point, perhaps your best move would be:

  • inspect the burn marks of each sparkplug. This would be your basis which carb needs closer attention; very light brown - lean (too much air / too little fuel) or very dark - rich (too much fuel / too little air);
  • carb pull down, full dis-assembly. All non-rubber parts must be soaked in carb cleaner;
  • a can of compressed air maybe used on the small holes;
  • for the age of the bike, special attention on hoses ends that may have splits, cracks or just plain loose (fuel & vacuum);
  • carb sync even just to check / make sure all are even.

Incidentally, there is a California version of this year/model. For emission control purposes, performance has been toned down. With so many attachments to the fuel lines and vacuums, it is possible that there is a leak somewhere.


Posted on Nov 19, 2009


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87 kawasaki not providing 100% of its power!!

Hi and welcome to FixYa,

Initially, your description of " and on it shows me it has the power it should..." is significant as it indicates that it would not be a mechanical / engine problem.

Offhand, almost always, erratic performance and/or intermittent power could be: 1) electrical (least likely), 2) air/fuel mix (likely) and/or 3) carb (most likely).

Interesting though if as you posted, the bike has "". If it were so, then a possibility to consider is that the carbs need synchronization.

Preliminary checks:
  • at cold start, determine which cylinders heat up faster / slower using water spray;
  • determine the colors of the burns / tips of the sparkplugs at what cylinder;
  • loosen the drain screws of each carb and collect the fuel from the drain hose. Compare the quantity and quality amongst all 4 bowls.

Incidentally, is everything stock or aftermarket items installed such as free/open breathers air filters and/or exhaust system?

Good luck and thank you for asking FixYa.

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