Carbs 101....Jetting...cleaning....everything you need to know about carbs - Page 31 - Yamaha Raptor Forum
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post #301 of 309 (permalink) Old 12-16-2015, 01:28 AM
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Originally Posted by Kaylan Ramrup View Post
Hi,
I have a problem with my 660 it idles fine with choke open but when i ride it it bogs is this something with the idle screw or does the carb need to be cleaned.

thankyou
Look at "Another carb question". A current thread, with your question answered.
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post #302 of 309 (permalink) Old 12-16-2015, 07:06 AM
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Carbs 101....Jetting...cleaning....everything you need to know about carbs

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Originally Posted by Will View Post
I turned the mix screws on my carb out only one turn and it seems to be running just fine. Does anyone think I should reset them out to three turns? Thought I might run into trouble when the weather gets cold. Is there any way to adjust them while still on quad. Can't seem to get in there to well with a short screwdriver.

Id recommend these:
http://www.ebay.com/ulk/itm/291610304687

They are offered in various colors. Here's a pic of them installed on my carbs. They're able to be adjusted easily with long-nose pliers.

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post #303 of 309 (permalink) Old 01-15-2016, 07:04 AM
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Quote:
Originally Posted by Kaylan Ramrup View Post
Hi,
I have a problem with my 660 it idles fine with choke open but when i ride it it bogs is this something with the idle screw or does the carb need to be cleaned.

thankyou
At which throttle position do you experience the bogging.


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post #304 of 309 (permalink) Old 01-17-2016, 01:41 AM
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i just read this whole thing! alt 1200 ft. 02 raptor fmf powercore with header no lid and k and n. fmf recommends stock pilots and needles 145/150 should i go to 150/155 and 125 but what of the needles and what settings and is it cheaper to peice meal a kit to gether or get a kit
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post #305 of 309 (permalink) Old 02-20-2016, 11:49 PM
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2001 raptor 660 k&n drop in filter no resonator on stock exhaust holes in lid

Cincinnati Ohio location

I have a DJ kit what main jets should I use

I have put in 25 pilots also
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post #306 of 309 (permalink) Old 02-23-2016, 04:16 PM
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Hey just wanted to share how i adjusted my air fule mixture screw on my quad i got it from menards it was 17 bucks it came with red plastic on the sides but i pulled it off so it would fit between the motor and bowls. Just slide in a flat head bit and use a nut driver to spin it.
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post #307 of 309 (permalink) Old 03-04-2016, 09:42 PM
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Last edited by ShadowTX; 03-05-2016 at 11:50 AM.
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post #308 of 309 (permalink) Old 03-04-2016, 10:00 PM
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Quote:
Originally Posted by Raider89 View Post
2001 raptor 660 k&n drop in filter no resonator on stock exhaust holes in lid

Cincinnati Ohio location

I have a DJ kit what main jets should I use

I have put in 25 pilots also
I have the same ATV
I run stock lid, snorkel removed.
#25 pilots, Mikuni 150 left, 155 right.
Extended fuel screws @ 1-3/4 to 2 turns out.
I would cover ur holes in lid and remove the snorkel in front of the airbox lid, and run the DJ equivalent of Mikuni 150 & 155 mains.
It will open ur eyes!
I also have aftermarket needles set in 4th slot down from the top notch.
Ur altitude is the same as mine.
Hope this works for ya!
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post #309 of 309 (permalink) Old 03-04-2018, 10:08 AM
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Originally Posted by Desert Racer View Post
In the 25 pic make sure the grey o ring sits in the groove in the carb when you put it back together.
Can not see the pics
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