Came home after a ride and my 650 brute will not start now was looking at the bike and checked the air box and there is oil under the breather.......help

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alan midkiff

Foam air filter oil or motor oil and how much on the bottom? Have you had it recently serviced? It's possible they over saturated the filter with oil. No water got in there did it?

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Current ride: 2005 Kodiak 450 w/ winch & plow
local ATV club member (www.ncatva.com)
Past rides:
>'95 Honda TRX300 w/mods
>'02 Honda 350 Rancher
Past Sleds:
>'85 Polaris 440
>'99 Polaris XC 500 - dang I miss that thing . . .
Daily ride: '03 Nissan Frontier 4x4 CrewCab (checkout - WWW.NISSANFRONTIER.NET)

first ride after service. no water in the box bike only has 500 miles on it.......

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alan midkiff

Its normal for the Kawi v-twins to get a little oil in the airbox when they are run at high RPM, especially when climbing steep long hills. This is even more the case with big bore kits and high compression. I wouldn't worry about a trace amount of oil in the airbox. That doesn't explain why it isn't starting though. If it isn't starting, or there is a lot of oil in the airbox I would take it back to the dealer and let your Kawi warranty take care of it.

DV

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'09 Can-Am Renegade 800: ATVTorture.com project quad
'08 KTM 950 R Super Enduro
'08 Dodge Challenger SRT8
'04 Jeep Wrangler Sport

There's a breather hose that goes from the engine to the bottom of the airbox. This is allows a minimal amount of moisture is escape out of the engine. It can cough some oil up there sometimes, but only if you're doing a lot of off camber stuff... It can be a performance problem with higher-end mx engines that run carbs. (like my yfz) It can affect the air mixture because of the temp and humidity that it causes in the airbox. A lot of people will seal off the airbox and re-route the vent hose somewhere else.

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If you never wreck, yer not riding hard enough...

04 yfz 450 Curtis Sparks Big Core Exhaust Kit
Cam mod
Airbox lid removed
GYT-R Jetting Kit, Grab Bar
AC Bumper, Nerf Bars, skid plates
TrailTech Xbars
HiPer beadlocks w/ razr's...

07 Grizzly 700 (Ducks Unlimited Edition)
Warn 3.0XT winch - Full Yami skids - 27" 589's all around
Dalton Clutch kit - Reverse rev-limiter override

kaw dealer said a little oil is normal...they adjusted the valves and seems to be fine now . we do alot of off camber and hills that must be part of the problem...

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alan midkiff

Good to hear they got you back up and running.

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If you never wreck, yer not riding hard enough...

04 yfz 450 Curtis Sparks Big Core Exhaust Kit
Cam mod
Airbox lid removed
GYT-R Jetting Kit, Grab Bar
AC Bumper, Nerf Bars, skid plates
TrailTech Xbars
HiPer beadlocks w/ razr's...

07 Grizzly 700 (Ducks Unlimited Edition)
Warn 3.0XT winch - Full Yami skids - 27" 589's all around
Dalton Clutch kit - Reverse rev-limiter override

I had the same problem with my machine... the more off-camber - the more oil ... Yami dealer confirmed that it is normal...

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CraZy Steve
=========
2007 Grizzly 450 4x4
- Warn 2.5ci w/20 ft remote
- GYTR and CSS (CraZy Steve Skids) Skids
- Garmin GPSMap 60Cx - Snorkle for front of Belt Drive

2005 Ski-Doo MXZ-500ss (SnowwmaxSteve on Doo-Talk)
- Holeshot Skid
- SnowShooter A-Arm Bushings
- BC3's Torsion spring spacers
- Monster Perf HPG Rear Shocks

My Sportsman and my friends Kodiak get oil in the air box also especially when riding up and down steep elevations.

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2001 SP 500 H.O