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Author Topic: Building a 1988 Suzuki RM250 engine  (Read 20422 times)

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Offline sandblaster

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Re: Building a 1988 Suzuki RM250 engine
« Reply #15 on: December 29, 2015, 11:11:38 AM »
Lapping is using a compound that you put between your cases and move the cases back and forth until they seat together in perfection. No gaps equals no air leaks :-)

Mix some Timesaver lapping compound with some trans fluid.


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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline sandblaster

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Re: Building a 1988 Suzuki RM250 engine
« Reply #16 on: December 29, 2015, 11:13:01 AM »
Even new factory cases should be checked as every KX500 case set I have seen has the same hollow spot as marked in red:

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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline sandblaster

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Re: Building a 1988 Suzuki RM250 engine
« Reply #17 on: January 06, 2016, 12:30:30 PM »
Ready for paint, then assembly





Still have some port work to do, then clean up and paint..
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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline sandblaster

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Re: Building a 1988 Suzuki RM250 engine
« Reply #18 on: January 10, 2016, 09:57:17 AM »
These look good but didn't pass inspection..
Found some wrinkles  :|



These are good to go.

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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline swordcombat

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Re: Building a 1988 Suzuki RM250 engine
« Reply #19 on: January 10, 2016, 10:53:03 AM »
Quote from: sandblaster on January 10, 2016, 09:57:17 AM
These look good but didn't pass inspection..
Found some wrinkles  :|



These are good to go.



Is that powder coat?
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Offline sandblaster

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Re: Building a 1988 Suzuki RM250 engine
« Reply #20 on: January 10, 2016, 01:53:30 PM »
It is VHT engine paint.
We bake them.
Not as good as powder coating but decent.
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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline swordcombat

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Re: Building a 1988 Suzuki RM250 engine
« Reply #21 on: January 11, 2016, 04:15:35 AM »
Quote from: sandblaster on January 10, 2016, 01:53:30 PM
It is VHT engine paint.
We bake them.
Not as good as powder coating but decent.

Looks amazing buddy :-D
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Offline sandblaster

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Re: Building a 1988 Suzuki RM250 engine
« Reply #22 on: January 11, 2016, 06:27:31 AM »
Thanks!  8-)
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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline alexander-vmann

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Re: Building a 1988 Suzuki RM250 engine
« Reply #23 on: January 11, 2016, 08:41:53 AM »
no doubt where you should send your engine for service, nice build! :mrgreen:
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KX 500 newbie

my bike: 1993 kx500

Offline swordcombat

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Re: Building a 1988 Suzuki RM250 engine
« Reply #24 on: February 16, 2016, 06:40:33 AM »
Quote from: sandblaster on January 10, 2016, 01:53:30 PM
It is VHT engine paint.
We bake them.
Not as good as powder coating but decent.

Is it just a case of paint on to bare metal and put in a conventional cooking oven?
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Offline sandblaster

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Re: Building a 1988 Suzuki RM250 engine
« Reply #25 on: February 16, 2016, 02:18:54 PM »
Degrease and clean the cases to perfection.
Mask where you do not want paint.
Paint.
Let tack up and remove tape.
Place in preheated oven at 200f.
Let bake for an hour.
Remove from oven and allow to cool.

Basic kitchen oven... Don't use your wife or mothers oven  :lol:

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Offline swordcombat

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Re: Building a 1988 Suzuki RM250 engine
« Reply #26 on: February 20, 2016, 01:39:40 AM »
Cheers buddy , so you didnt bother using the primer or the lacquer?
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Offline sandblaster

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Re: Building a 1988 Suzuki RM250 engine
« Reply #27 on: February 20, 2016, 01:52:11 AM »
No, VHT engine paint does not require either.
That being said, I'm always looking for better paint or methods.
I plan to start dabbling with powder coating.
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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline swordcombat

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Re: Building a 1988 Suzuki RM250 engine
« Reply #28 on: February 20, 2016, 09:18:23 AM »
Quote from: sandblaster on February 20, 2016, 01:52:11 AM
No, VHT engine paint does not require either.
That being said, I'm always looking for better paint or methods.
I plan to start dabbling with powder coating.

Yes i have just been watching home powder coating on youtube and looks very easy
But i only have one oven that we cook with and i dont want to poison everyone by baking painted stuff in there
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Offline umberto

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Re: Building a 1988 Suzuki RM250 engine
« Reply #29 on: February 20, 2016, 10:29:16 AM »
Quote from: sandblaster on February 20, 2016, 01:52:11 AM
No, VHT engine paint does not require either.
That being said, I'm always looking for better paint or methods.
I plan to start dabbling with powder coating.
Are you thinking about the Eastwood system or something similar, or are you going for a little more hard core?

http://www.eastwood.com/paints/hotcoat-powder-coating/powder-coat-guns.html
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Perhaps I have a dirt bike addiction?

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