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Author Topic: KX 500 Engine in Ninja 500  (Read 12628 times)

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Offline taddpole77

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Re: KX 500 Engine in Ninja 500
« Reply #15 on: January 17, 2019, 01:46:57 AM »
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Offline Foxx4Beaver

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Re: KX 500 Engine in Ninja 500
« Reply #16 on: January 17, 2019, 02:09:45 AM »
Holy "tingy"!!!  :lol: ....sounds pretty good!
what do ya got left before the bodywork goes on?
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Excuse me, ma'am...but you've got extremely nice legs!!!...what time do they open???                                                                                                               https://www.youtube.com/watch?v=n8tCgN3aryQ

Offline sandblaster

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Re: KX 500 Engine in Ninja 500
« Reply #17 on: January 17, 2019, 03:41:07 AM »
Nice!

Get yourself a decomp on the head.
It will start like butter and it will save starter parts from wearing out and putting stress on the engine.
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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline umberto

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Re: KX 500 Engine in Ninja 500
« Reply #18 on: January 17, 2019, 06:48:01 AM »
Amen to that!  There is a member on here (Larry Wiechman) that does them for a very reasonable price, and his work is first rate.  They make starting the bike a tennis shoe affair.
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Perhaps I have a dirt bike addiction?

03 KX 250/88 KX 525/2017 KX250F - Goliath
17 KX250F/04 KX250
04 KX 250 - Lunchbox's Bike
05 KX 125/144

Offline taddpole77

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Re: KX 500 Engine in Ninja 500
« Reply #19 on: January 23, 2019, 01:17:51 AM »
Quote from: Foxx4Beaver on January 17, 2019, 02:09:45 AM
Holy "tingy"!!!  :lol: ....sounds pretty good!
what do ya got left before the bodywork goes on?
No bodywork.  I don't want the added weight and I want it to be as stripped down as possible.  I am dealing with a head gasket leak right now.  It is a bit of a mystery why it's leaking. 
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Offline Foxx4Beaver

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Re: KX 500 Engine in Ninja 500
« Reply #20 on: January 23, 2019, 01:24:56 AM »
Quote from: taddpole77 on January 23, 2019, 01:17:51 AM
I am dealing with a head gasket leak right now.  It is a bit of a mystery why it's leaking. 

Have you lapped the head and cylinder to be sure both surfaces are completely flat?...that's "usually" the cause of a leaky head gasket.
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Excuse me, ma'am...but you've got extremely nice legs!!!...what time do they open???                                                                                                               https://www.youtube.com/watch?v=n8tCgN3aryQ

Offline taddpole77

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Re: KX 500 Engine in Ninja 500
« Reply #21 on: January 24, 2019, 05:03:58 AM »
Twice now by my machinist.  In the service manual it has a supplement on which orientation to put the head gasket but the gasket they show in the manual doesn't look like my gasket.  It was a stock kx gasket torqued to 18 ft pounds criss-cross pattern.  I have never had a head gasket leak before.  Going to try a cometic gasket in it next.  As far as I can tell the cylinder and the head are not cracked. It was leaking out of the head stud.  New studs were installed because the old ones where rusty because the head was leaking.
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Offline dave916

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Re: KX 500 Engine in Ninja 500
« Reply #22 on: January 24, 2019, 06:48:17 AM »
 Were the head stud nuts tight when you took off the head?U  might need  retorque after running
No harm to countersink the barrel alittle when fitting new studs
Did u use proper spec/grade studs when replacing? {ie not 8.8}
I Use a little thread tape to the top of the studs now when i fit head gaskets
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Offline Foxx4Beaver

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Re: KX 500 Engine in Ninja 500
« Reply #23 on: January 24, 2019, 06:56:47 AM »
Not sure how many guys on here do this...but I like to seal the studs in the cylinder with a little Yamabond. As studs have been known to back out sometimes.
As stated, countersinking the stud holes a touch is a good idea too.
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Excuse me, ma'am...but you've got extremely nice legs!!!...what time do they open???                                                                                                               https://www.youtube.com/watch?v=n8tCgN3aryQ

Offline taddpole77

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Re: KX 500 Engine in Ninja 500
« Reply #24 on: January 24, 2019, 09:51:57 AM »
I used new oem studs.  I checked the torque on the head before I pulled it and they were all still tight and at spec.  I put loctite on the studs when I installed them and they were all tight when I pulled them to take to the machinist.  I didn't look like the coolant was coming from inside the hole where the stud was.  I am pretty sure the loctite would have stopped it anyway.  I am pretty sure the head just wasn't sealing and it allowed the coolant to work its way to the stud. I don't think it was leaking into the bore though.  Hopefully it won't leak again.
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Offline taddpole77

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Re: KX 500 Engine in Ninja 500
« Reply #25 on: February 04, 2019, 02:07:45 AM »
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Offline Foxx4Beaver

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Re: KX 500 Engine in Ninja 500
« Reply #26 on: February 04, 2019, 02:22:49 AM »
Sweet!
did ya get that head issue squared away?
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Excuse me, ma'am...but you've got extremely nice legs!!!...what time do they open???                                                                                                               https://www.youtube.com/watch?v=n8tCgN3aryQ

Offline taddpole77

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Re: KX 500 Engine in Ninja 500
« Reply #27 on: February 04, 2019, 02:54:36 AM »
It doesn't seem to be leaking anymore.
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Offline Foxx4Beaver

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Re: KX 500 Engine in Ninja 500
« Reply #28 on: February 04, 2019, 03:24:06 AM »
Knock on wood...
Keep an eye on it, and the coolant level.
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Excuse me, ma'am...but you've got extremely nice legs!!!...what time do they open???                                                                                                               https://www.youtube.com/watch?v=n8tCgN3aryQ

Offline umberto

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Re: KX 500 Engine in Ninja 500
« Reply #29 on: February 04, 2019, 04:28:45 AM »
Quote from: taddpole77 on February 04, 2019, 02:07:45 AM
First ride video

https://www.youtube.com/watch?v=037BfyXClWM&feature=youtu.be
I love how excited your kids were to see your bike going.  Mine usually just yawned and said, "neat" with no emotion.   :-D
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Perhaps I have a dirt bike addiction?

03 KX 250/88 KX 525/2017 KX250F - Goliath
17 KX250F/04 KX250
04 KX 250 - Lunchbox's Bike
05 KX 125/144
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