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Discussion Starter #1 (Edited)
Hey Guys,
raptor 660r, running bad, backfiring, not idling

What's up?

I'm having a bit of a problem here with my 03 Raptor 660R.
Firstly it had a lot of issues startin, so i dug up the internet and found that the sparkplug "sensor" had some rust. I've cleared it out and it simply fixed the problem of not easily starting.

The problem that I'm facing now is that the quad does not idle properly.
When I start it, I must be over the throttle in order to it to keep on. As soon as I leave the throttle on iddle, it revs randomly and suddenly it stops with a noise.

I've noticed that the Reverse light blinks for a while, but I've read in the net that it's because of high idle. I've tried already adjusting the idle cable so the runs a bit upper on idle, that's when I get the blinking light, and even though, the engine revs up and down, and suddenly it cuts out. I've also noticed a strange noise, like let's say air kicks/Clicks in the engine/air filter compartment, I'm not sure it's normal.

I've checked a lot, I've teared it apart to try to locate the problem, with the help of a friend, but I don't know what I'm missing out.
I'm new to ATV's so I kindly ask for your help, PLEASE!

If needed, please find here the Video of the Bike Running please click on the link below.
http://www.dropshots.com/xobbas/date/2014-11-01/22:21:42

Thanks in advance
 

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If the atv has set for a long time, the carburetors may need cleaning. Check the air filter to make sure it is clean and clear. Make sure the carburetors are fully seated in the intake boots. Check your stator with a multimeter using the instructions in the service manual.
 

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Discussion Starter #3
If the atv has set for a long time, the carburetors may need cleaning. Check the air filter to make sure it is clean and clear. Make sure the carburetors are fully seated in the intake boots. Check your stator with a multimeter using the instructions in the service manual.
The ATV is seated for some time. I've tried cleaning the carbs already but still does the same thing. I'll check for the Air Filter and for the intake boots, and will get back to you with some results.

Thanks
 

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I listened to your video, and it sounds lean, which means the carbs aprobably need a little better cleaning. Make sure and pull out the pilot jets and screws and force air or carb cleaner through them. These passages are small and sometimes get really stuck.

Did the atv have the pipe on it last time your rode it? If you just installed that exhaust you will have to put larger main jets in the carburetors and back the pilot screws out a turn or so.
 

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Discussion Starter #5
I listened to your video, and it sounds lean, which means the carbs aprobably need a little better cleaning. Make sure and pull out the pilot jets and screws and force air or carb cleaner through them. These passages are small and sometimes get really stuck.

Did the atv have the pipe on it last time your rode it? If you just installed that exhaust you will have to put larger main jets in the carburetors and back the pilot screws out a turn or so.
Yes, I've removed the Carbs for cleaning.
I've taken the Carbs to a bike repair shop in South Africa (Across the Border), they're actually cleaning and replacing what is needed to replace. After that, I'll give it a shot, see what she does and let you know.
Yes, The bike has the pipe for a long time now and worked fine, so we can cross that out. I'll get back to you as soon as I go and pick the Carbs up.


Thanks,
Xobbas
 
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