Jetting raptor 125 - Yamaha Raptor Forum
 

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Old 04-07-2013, 03:05 PM   #1 (permalink)
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Default Jetting raptor 125

Just took the air box lid off, switched to K&N, added FMF full pipe and slip on. Anyone know what jets I should switch to. If giving me a reply please specify what number for what jet. If you just tell me numbers ill prob just be lost lol thank you. I'm trying to get as much power out of these quads as possible. As we Manley ride in the sand. If anyone has any other suggestions on where or how I can get more power it would be great.
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Old 04-07-2013, 10:38 PM   #2 (permalink)
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Default Raptor 125 jet help

Quote:
Originally Posted by Me. Cleanup View Post
Just took the air box lid off, switched to K&N, added FMF full pipe and slip on. Anyone know what jets I should switch to. If giving me a reply please specify what number for what jet. If you just tell me numbers ill prob just be lost lol thank you. I'm trying to get as much power out of these quads as possible. As we Manley ride in the sand. If anyone has any other suggestions on where or how I can get more power it would be great.
Just remembered that I when down 1 tooth on front sprocket and up 2 teeth on rear sprocket also.
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Old 04-11-2013, 12:13 PM   #3 (permalink)
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Default

I'm in the same boat. I read that DrD recommended going up one on the needle and 2 on the main, but without pulling stock jets out, I don't know what they are.
I just ordered this to try with the same combo you have.

http://www.ebay.com/itm/Yamaha-Rapto...item4d0b631a20
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Old 04-11-2013, 02:22 PM   #4 (permalink)
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Also found this.

http://www.racepartsonline.com/shop/...ptor-125-11-12


HMF Factory Jet Kit | Yamaha Raptor 125 (11-12)
New HMF Factory Jet Kit for your Yamaha Raptor 125 (11-12) using an HMF exhaust.

HMF Factory Jet Kit Includes: Individual MLR Jets:165, 170, 175 and 30 Pilot

HMF Recommended Jetting for Raptor 125 (11)

2008-2009: Slip On & Full System:
No Air Box Lid: 165 Mikuni Large Round. Stock Carb.
Air Box Lid On: 130 Mikuni Large Round.
PE28 Carb: 145 Keihin Hex. 35 Pilot

These settings were determined on the HMF dyno at 900ft - 60�F
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