KX Riders
Maintenance & Technical => KX500 Original => Topic started by: cobbs on April 08, 2012, 12:59:45 PM
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what the hell I went to put coolant in my bike today and it was POURING out of the head all the way around is there some trick to getting these s**tty gaskets to seal the metal ring won't crush down so the rest of the gasket in not sealing you guys have any tricks or a paricular order you torque the head nut down in I've never had this problem before
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start by lapping the the cylinder and the head to be sure they're PERFECTLY flat....more than likely,thats gonna be your problem.What gasket are you using?
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#1 Which gaskets you using.
#2 Torque the head nuts first (ignore the 2 kips ones past 50%) in a star pattern... then torqe the 2 (Front) kips ones.. 50% 75% 100%
#3. Lap Lap Lap... Ive never seen a flat Jug nor do the replaters pay attention to it either.
#4. after putting in head studs (you tightened those as well right?) use a straight edge.. to make sure there isnt any material pulled up around the studs.... K5 is good for that one.
#5 Dont forget to loosen the Head mount when you torque it... Met many that have.
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they have been lapped the metal ring was at 55 thousands the rest of the gasket was at 49 thou and that's after I torqued it down like I said it was pouring out uniformly all around the cylinder but I did torque the exhaust head nuts in my criss cross pattern and I new I should have done those last but I don't think that would have helped anyway because the gasket is a cheap piece of crap and I should have just bought oem but no I used ne super gaskets from China I know I'm a dumbass but I didn't hear anything bad about them so I tried them
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they have been lapped the metal ring was at 55 thousands the rest of the gasket was at 49 thou and that's after I torqued it down like I said it was pouring out uniformly all around the cylinder but I did torque the exhaust head nuts in my criss cross pattern and I new I should have done those last but I don't think that would have helped anyway because the gasket is a cheap piece of crap and I should have just bought oem but no I used ne super gaskets from China I know I'm a dumbass but I didn't hear anything bad about them so I tried them
Cometic is your friend.
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really,I thought OEM was the best for a head gasket but I'll try cometic for sure never tried them I usually use Athena but I thought hey lets try something new MISTAKE
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really,I thought OEM was the best for a head gasket but I'll try cometic for sure never tried them I usually use Athena but I thought hey lets try something new MISTAKE
Check your PM's
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really,I thought OEM was the best for a head gasket but I'll try cometic for sure never tried them I usually use Athena but I thought hey lets try something new MISTAKE
Never tried Cometic gaskets so I keep my mouth shut as far as opinions. However, I have used dozens of OEM Kawi top end gaskets with excellent results. I do always check the head for warpage. IMO if you have issues with a brand new head gasket, it's not the gasket "quality" or "lack of" that's the problem.
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plus 1 on that. I can't keep my mouth shut so.
I only use the thin oem gaskets, (more power) and never had issues. Again I check the head and cyl for straight and square surfaces. There never right and can always use some cleaning up.
Bob W
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the head and cylinder are true its the gasket there is a 6 thousands difference between the metal ring and the rest of the gasket after it was torqued if the head was warped it would only leak in spots mine was POURING out evenly all around the cylinder with no pressure it was never started I'm pretty sure in fact I'm positive it was the gasket and nothing else
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"Your item was delivered at 1:03 pm on April 11, 2012 "
Well??
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Hey motorad sorry I just checked the mail (1:00am) worked all day wow that was fast its here thanks alot and do you have any other tricks on making them seal, do you use copper coat?
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Hey motorad sorry I just checked the mail (1:00am) worked all day wow that was fast its here thanks alot and do you have any other tricks on making them seal, do you use copper coat?
Not on that gasket.. It's coated already.
Positive deck is flat.
Check around studs for pulled up material win a straight edge (I hit my stud holes win a countersink...
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If I remember correctly there is a tiny location pin to align the head, make sure that pin is not mushroomed or burred, and make sure there is no debris in the bottom of the pin hole.
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hopefully my bike will be running tonite!
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hopefully my bike will be running tonite!
Should if head is flat...
For future people that look at this for help (bravo to you for using the search button)..
I know Im going to catch s**t for this .... But..
if all else fails..
there is a MAGIC product made by Honda... Called HondaBond HT (has to have the HT in it)... NOT HONDABOND 4)..
fills gaps.. doesnt run out like coppercoat.. and is rated 100degrees HOTTER than coppercoat (600F).. .. will also put up with the pressures involved in the cooling etc systems (Much higher blowout rating than anything else).. Think of it as Silicone Godzilla on CRACK..
only as a last resort... I have used it on several things that there was no other option.. and has held up VERY well (we are talking tens of thousands of miles). (coppercoat didnt work, and cant machine parts anymore.. (old norton heads, etc))...
(http://www.handa-accessories.com/hondabondlrg.jpg)
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everything is all good here i had zero problems with the cometic 3rd or 4th kick and bam she running zero leaks but that gasket is super thin am i still good with 91 pump gas?
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everything is all good here i had zero problems with the cometic 3rd or 4th kick and bam she running zero leaks but that gasket is super thin am i still good with 91 pump gas?
So I have my facts straight, your head leaked badly with an OEM Kawi head gasket, but using a super thin Cometic head gasket you now have no leakage ? Interesting outcome. Sorry , but i'm still hardcore believer in OEM gaskets. But hey, no more leak issues.. I would still keep a close eye on your coolant level. Elusive leaks will appear after the system is under normal hot pressure....
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I did not use OEM I said I should have, I tried NE Super Gaskets cheap gaskets from China and as I already mentioned the gasket was the the problem not my cylinder or head there was a 6 thousands difference between the metal ring and the rest of the gasket after it was torqued down thats not going to seal on ANY cylinder so I believe it was the the quality of the gasket or should I say lack of :wink:
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everything is all good here i had zero problems with the cometic 3rd or 4th kick and bam she running zero leaks but that gasket is super thin am i still good with 91 pump gas?
The one I sent you is the same thickness as the later OEM kawasaki steel gasket.. so if you havnt messed with anything (decking head, jug, etc without correcting (cutting chamber) you should be fine... The cometic gasket comes with a coating (what Im told is Viton... I havnt confirmed this so dont take it as word of god)...
The last OEM gasket I used.. didnt work out so hot.. wasnt in the best shape when I recieved it to give it some credit... I think like many "parishable" parts for a dirt bike that hasnt been made in nearly 9 years... have been Kicking around a bit... (IE crank seals).. Last set of OEM crank seals I ordered... were Harder than a rock... Cometic crank seals are nice and FRESH... with a Date of manufacture on them too
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well I'm a believer in cometic gaskets zero leaks. I broke it in and put a day of good riding on it and nothing, no leaks I'll be using them in the future!
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well I'm a believer in cometic gaskets zero leaks. I broke it in and put a day of good riding on it and nothing, no leaks I'll be using them in the future!
Thei base gaskets are the only way to go... No blowout issues as they are metal
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I agree, CBX turned me to Cometic probably 15 yrs. ago and I have been stuck on them since. Plus you can call them and order them as you would like, great customer support. Too bad they still dont offer their rider support.
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I agree, CBX turned me to Cometic probably 15 yrs. ago and I have been stuck on them since. Plus you can call them and order them as you would like, great customer support. Too bad they still dont offer their rider support.
Yep. I custom order all my base gaskets to my specs
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I use copper cote by permatex. Use it on every gasket on all nine of my K5's. I like it on head gaskets because it also seals water , water is a tough liquid to seal. Also use it on all other gaskets includeing clutch case gasket, Nine times out of ten I pull clutch case and the gasket doesnt tare, use it again.
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assuming there is no leaks, are the cometic metal top end gaskets designed to be installed without any sealant? such as coppercoat or hondabond HT?