2001 ZR bogged down and won't start now.

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pfeifest

Member
My 2001 ZR ran like a champ for 600 miles this year. Then all of a sudden it bogged down coming into a town to get gas and now won't start. The facts:

** Ran 95 miles today. Only premium non-ethanol gas
** was having issues idling early today
** changed both plugs - went half a block and then shut off for good. Now it won't start
** carbs are cleaned every year
** my gas gauge is also not working in the last day (probaby completely unrelated).

Here is exactly what happened in more detail:

Ran for 95 miles or so on good trails at decently fast speeds. After running for 70 miles on the tank of gas I have and coming into town it bogged down for a split second. Feathered the throttle and you could tell it was having issues with power. Rode it the last block to the gas station, filled up, and replaced the plugs. Ran it for another block and it bogged down again then completely shut off. Restarted it... ran for about 20 feet and then it shut off for good. Now it won't start at all.

What is your best idea on what it might be? Thanks!

- pfeifest
 
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reiley99

New member
unplug the 3 wire plug to your handle bars I think the wires are purple brown and the other one is black and white
 
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hudson056

Member
My 01 ZL did that after 250 miles and turned out I was down a cylinder (although it ran long enough to get to the hotel) check your compression or atleast look in the cylinder with a flashlight
 
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mikes99ss

Well-known member
Sounds to me like she blew up. Compression test it. If you don't have a compression tester. Take your plugs out and hold your thumb over the hole. It should blow your thumb off. If it doesn't then bad news
 
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pfeifest

Member
Well - it isn't blown up. Actually when they tried starting it today at the shop it started just fine and they ran it for 20 miles with no issues. So this is the exact same thing I had at the end of last year. It runs a good amount of time but then later in the day starts to have issues. This has happened three times now - twice at the end of last year and once on Friday. Seems to be when the sled gets warm maybe? Also seems to happen when it's a little warmer outside maybe???

Gas tank was drained last fall and all gas lines were replaced. Boots were also replaced. Only thing I have noticed is that the key doesn't shut the sled off too easily anymore..... almost like it's frozen in there a little.

Any other ideas? I hate problems you can't reproduce.... very difficult to resolve! This is an EFI if that helps.
 
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yarls24

Member
I had an 1999 AC ZR600 EFI, it would run just fine then fall flat on its face and die. This happened when it was warmed up and it ran for awhile. It turned out to be the stator, I replaced it two years earlier with an after market one. My advice to you is to check the voltage coming out of that stator, and if its bad, buy a factory stator. The new factory stator solved the problem.
 
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08m8

New member
stator had same problem on zr800

stator
yarls24 said:
I had an 1999 AC ZR600 EFI, it would run just fine then fall flat on its face and die. This happened when it was warmed up and it ran for awhile. It turned out to be the stator, I replaced it two years earlier with an after market one. My advice to you is to check the voltage coming out of that stator, and if its bad, buy a factory stator. The new factory stator solved the problem.
Click to expand...
 
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G

Guest
Do the stator check as has been described. Those model years were famous for crappy stators. And if you think you will get away from electrical issues go ahead and buy a new Etec. Many more miles of wires in the new sleds than the old. When this new stuff gets a few years on it there will be all kinds of problems. If you buy new you better have warranty no matter which color you buy. Then trade it before the warranty is over. Way too complicated and expensive for backyard mechanics nowadays. The good old days of taking apart your Mikuni roundslides out on the trail are over.
 
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