Head gask. or exhaust man. gask?

tommygun · 10-05-2009, 08:01 PM

Ok, i have a 2008 gz with 14500 miles. i am 175lb and never get over 65mph. I never do jack rabbit take offs and ride for opt. fuel mileage. I have blown a head gasket once and an exhaust gasket twice. I now think I have blown another head gasket. Has anyone had similar problems or did I just get a lemon?

JWR · 10-05-2009, 09:04 PM

I am going to take a WAG here.
I have no idea why the first head gasket would blow, but I would check the head for a warp before I replaced the gasket.
Just my .02 cents.....

P.S. My 2002 with 13,800 miles has had ZERO problems.
I replaced the spark plug at 10,000 miles .
It has been rode hard and put up wet...

Jerry

tommygun · 10-05-2009, 11:09 PM

well it has been like 4000 mile since the first gasket. would a warp wait that long?

tommygun · 10-05-2009, 11:10 PM

actually probably 6000 miles

Water Warrior 2 · 10-06-2009, 12:12 AM

Did you buy the bike new or slightly used and maybe somewhat abused ?

Easy Rider · 10-06-2009, 11:54 AM

Quote:

Originally Posted by tommygun

well it has been like 4000 mile since the first gasket. would a warp wait that long?

Maybe. Nobody knows.
IF the head and the cylinder wasn't checked for defects the first time, they definitely should be this time around.

Loose exhaust gaskets aren't that rare; head gasket failures ARE.
What makes you think the head gasket is "blown" again ??

tommygun · 10-13-2009, 12:02 PM

The bike was purchase new by myself. I think it is "blown" because the bike is making a sound similar to when it happened the firs time and I can smell like a fuel/oil smell near the front to the bike.

tommygun · 10-13-2009, 12:38 PM

upon further inspection I believe if it s the it is the gasket between the upper and lower cylinder. Part # 11241-38301 on page 3 of the repair manual. I have black residue (i think oil) around the front of the engine near the gasket. Is this hard to fix? I am a shade tree mechanic and think I can make it happen unless someone has other reservations. Also, would I have to remove the engine entirely to life the cylinder head? An why the heck did it go in the first place? Read my riding habits above.

trykemike · 10-14-2009, 12:14 AM

Hey Tommy look at the front of the head between the exhaust pipes. There is a bolt with a lock-washer and nut. It keeps the head tight along with a similiar bolt under the carb at the back of the head. Check if it is loose. if so tighten it up snuggly. Do not over-tighten. I do this periodically to resolve a slight oil sweat when I ride at excessive speeds over 200-300 km runs. Refer to the service manual for the sketch. If that resolves the issue then apply BLUE Locktite to retain the position.

tommygun · 10-14-2009, 09:47 AM

Will riding with this "leak?" harm anything? The bike seems to be running better with the gasket leak.

10-05-2009, 08:01 PM	#1
tommygun Member Join Date: Nov 2008 Location: N.E Georgia - lots of hills!!! Posts: 44	Head gask. or exhaust man. gask? Ok, i have a 2008 gz with 14500 miles. i am 175lb and never get over 65mph. I never do jack rabbit take offs and ride for opt. fuel mileage. I have blown a head gasket once and an exhaust gasket twice. I now think I have blown another head gasket. Has anyone had similar problems or did I just get a lemon? Login or Register to Remove Ads
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10-05-2009, 09:04 PM	#2
JWR Senior Member Join Date: Jan 2009 Location: Louisville, TN Posts: 1,413	Re: Head gask. or exhaust man. gask? I am going to take a WAG here. I have no idea why the first head gasket would blow, but I would check the head for a warp before I replaced the gasket. Just my .02 cents..... P.S. My 2002 with 13,800 miles has had ZERO problems. I replaced the spark plug at 10,000 miles . It has been rode hard and put up wet... Jerry __________________ Jerry Truth is there are lots of great bikes available and not nearly as many good riders out there riding them... "A man's got to know his limitations..."
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10-05-2009, 11:09 PM	#3
tommygun Member Join Date: Nov 2008 Location: N.E Georgia - lots of hills!!! Posts: 44	Re: Head gask. or exhaust man. gask? well it has been like 4000 mile since the first gasket. would a warp wait that long? Login or Register to Remove Ads
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10-05-2009, 11:10 PM	#4
tommygun Member Join Date: Nov 2008 Location: N.E Georgia - lots of hills!!! Posts: 44	Re: Head gask. or exhaust man. gask? actually probably 6000 miles
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10-06-2009, 12:12 AM	#5
Water Warrior 2 Senior Member Join Date: Dec 2006 Location: Squamish B.C Canada Posts: 11,409	Re: Head gask. or exhaust man. gask? Did you buy the bike new or slightly used and maybe somewhat abused ? Login or Register to Remove Ads
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10-13-2009, 12:02 PM	#7
tommygun Member Join Date: Nov 2008 Location: N.E Georgia - lots of hills!!! Posts: 44	Re: Head gask. or exhaust man. gask? The bike was purchase new by myself. I think it is "blown" because the bike is making a sound similar to when it happened the firs time and I can smell like a fuel/oil smell near the front to the bike.
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10-13-2009, 12:38 PM	#8
tommygun Member Join Date: Nov 2008 Location: N.E Georgia - lots of hills!!! Posts: 44	Re: Head gask. or exhaust man. gask? upon further inspection I believe if it s the it is the gasket between the upper and lower cylinder. Part # 11241-38301 on page 3 of the repair manual. I have black residue (i think oil) around the front of the engine near the gasket. Is this hard to fix? I am a shade tree mechanic and think I can make it happen unless someone has other reservations. Also, would I have to remove the engine entirely to life the cylinder head? An why the heck did it go in the first place? Read my riding habits above.
	0

10-14-2009, 12:14 AM	#9
trykemike Senior Member Join Date: May 2007 Location: toronto ont canada Posts: 177	Re: Head gask. or exhaust man. gask? Hey Tommy look at the front of the head between the exhaust pipes. There is a bolt with a lock-washer and nut. It keeps the head tight along with a similiar bolt under the carb at the back of the head. Check if it is loose. if so tighten it up snuggly. Do not over-tighten. I do this periodically to resolve a slight oil sweat when I ride at excessive speeds over 200-300 km runs. Refer to the service manual for the sketch. If that resolves the issue then apply BLUE Locktite to retain the position. __________________ sds4
	0

10-14-2009, 09:47 AM	#10
tommygun Member Join Date: Nov 2008 Location: N.E Georgia - lots of hills!!! Posts: 44	Re: Head gask. or exhaust man. gask? Will riding with this "leak?" harm anything? The bike seems to be running better with the gasket leak.
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