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Discussion Starter #1
my 02 zr 800 efi consistetly bogs if I pin the throttle quickly. If my dealer vacuum matches the 2 sides, it is the best, but it always comes back. The servo appears to function well, but someone has told me that a weak servo could be the problem. Does anyone have a similar problem, is there a way to detect the problem, and has anyone found a cure?
 

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Hi Gord, it's Dan I got thinking about your sled a little more and it occured to me maybe your smartvalves are what is giving you the grief. Give me a call and I will explain.
 

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I have the same problem with my f7, bogs in and out of the line and then it's ok but the other day when this started i had it up to 100 and when i backed it of i felt it die down alomst stopped and after that it took about 3 pulls to get it started again.
 

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Discussion Starter #5
I need to correct the original post-I meant to say that the voltages equalized made the most difference in helping minimalize the bog.
 

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gord you can have the ecu reprogramed by AC. for free it is supposed to help with the low end hesitation mine had the bog last year, and i have just put the reprogramed ecu in today and will be seeing if there is any diff. this weekend. will let you know on tuesday.
 

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My 02 zr 800 cc le bags with a quick hit of the throttle off the line also. Its done this since day one ?
I too have also noticed that when your let off the throttle under certain conditions , it seems like the engine shuts off ?? I am not very mechanically understanding like a lot of the people on these forums ,
But I can at least explain what the symptoms are that are occuring to my machine , and maybee it will help identify some of the issues. Jim!
 

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81mmcat
Thanks for the advice , I will do that .
Jim !
 
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