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post #1 of 8 Old 07-29-2012, 12:21 PM Thread Starter
 
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oil leak

oil is pouring out of the cylinder head next to the header pipe ...is this more likely to be the head gasket or valve seals? the oil pump sure works good :)

Last edited by 64scrambler; 07-29-2012 at 02:48 PM.
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post #2 of 8 Old 07-29-2012, 05:19 PM
 
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maybe telling what model and engine you have would yield better results..

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post #3 of 8 Old 07-29-2012, 05:26 PM
 
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X2!! On some models there is a bolt just above the spark plug to check oil pressure after a oil change.

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post #4 of 8 Old 07-29-2012, 05:49 PM Thread Starter
 
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its a 2009 grizzly 350 irs
it runs great and has plenty of power but oil is coming out fast where the exhaust pipe comes out of the head. makes no senseto me. im taking the head off but the front two head bolts won't clear the frame to pull them all the way out. do i have to tilt the engine forward for there to be enough room to get the head bolts out?
thanks for your replies

Last edited by 64scrambler; 07-29-2012 at 06:19 PM. Reason: more info
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post #5 of 8 Old 07-29-2012, 08:11 PM
 
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Are you sure that 8mm bolt is tight?

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2006 Yamaha Vector Mnt 973cc
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post #6 of 8 Old 07-30-2012, 12:10 AM Thread Starter
 
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8mm bolt? which one would that be?
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post #7 of 8 Old 07-30-2012, 06:52 AM
 
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It should be above the spark plug towards the top of the head.im not 100%sure the 350has them but most air cooled yamahas do,get some degreaser and clean the area good and thren run it to locate the leak.if its (pouring)out you should be able to locate it.

2015 Can-Am Commander 1000 Max XT,1/2 Shield,Aluiminum Laterial Skids,All the XT Goodies Sold:2015 Yamaha Viking VI, Half shield,4500 Super winch, Soft Top, Sedona Syder 27" wheels, Ripsaw tires.
2006 Yamaha Vector Mnt 973cc
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post #8 of 8 Old 07-31-2012, 01:05 PM Thread Starter
 
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got the head off...the leak is at the head gasket so new gasket ordered. what happened is a previous owner broke one of the exhaust studs off. instead of replacing the stud he attempted to weld the exhaust pipe flang to the boken stud...total mickey mouse job. The extreme heat from welding there created the leak with the head gasket.
now im wondering where the plug is to see the mark to set TDC on the flywheel for setting the timing when i put this thing back together. Is it under the rope pull start cover?
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