250F Another 2004 KX250F Project/Build

Trfsrfr · Jun 24, 2017

Mihylo33:
Yamabond.
But I have never had to use liquid gasket before.

The KX manual says to use Kawasaki Bond, but I was hoping someone would mention something I could get at Autozone.
I do have some black RTV...

PALMER84ONE · Jun 24, 2017

I have put some cases together with quality permatex fuel/oil rated.

2strokesteve89 · Jun 25, 2017

This is my go to stuff.

Trfsrfr · Jun 25, 2017

Sold!

Mihylo33 · Jun 25, 2017

Trfsrfr:
The KX manual says to use Kawasaki Bond, but I was hoping someone would mention something I could get at Autozone.
I do have some black RTV...

2strokesteve89:
View attachment 30933

This is my go to stuff.

Yeah permatex and yamabond it's all the same stuff. Luckily Homedepot sells it in the paint aisle along with threadlock and stuff. I try and keep new tubes at the ready all the time for diesel repair. Lol

Trfsrfr · Jun 25, 2017

Check.
Moving on to the next level of assessment, here are some pics for your viewing pleasure;

Mihylo33 · Jun 26, 2017

1st rule of modern 4t mix engines:
If you open it up you have to replace everything period.

Trfsrfr · Jun 26, 2017

I dont think I like that rule...

Mihylo33 · Jun 26, 2017

Trfsrfr:
I dont think I like that rule...

Neither do a lot of other people and that's why you can always find 4t basket cases. No such thing as a short cut.

2Wheels · Jun 26, 2017

Mihylo33:
1st rule of modern 4t mix engines:
If you open it up you have to replace everything period.

Not true. I got a blue '03 250f. Wouldn't start. Gave $400. Pulled it down found hot rods crank/rod no slop. Weisco piston spec gap, crosshatches on jug. solvent test valve seat-check. Buttoned up. cleaned the mossy chunky ethanol crust from the carb. New gaskets. 35 hours and still running strong. Of course, now is the time to decide. Keep- new top end and valvetrain or sell as is. Honestly, I think I'm done with carbs so...

Trfsrfr · Jun 26, 2017

I'm thinking seals, gaskets, bearings, piston, and run it.

Mihylo33 · Jun 27, 2017

2Wheels:
Not true. I got a blue '03 250f. Wouldn't start. Gave $400. Pulled it down found hot rods crank/rod no slop. Weisco piston spec gap, crosshatches on jug. solvent test valve seat-check. Buttoned up. cleaned the mossy chunky ethanol crust from the carb. New gaskets. 35 hours and still running strong. Of course, now is the time to decide. Keep- new top end and valvetrain or sell as is. Honestly, I think I'm done with carbs so...

True more often than not, especially with the other brands. The early yammi motors were great and virtually bulletproof.

2Wheels · Jun 27, 2017

It took a while for the others to catch up. I'm almost worried about the new 4 valve design. They fixed something that wasn't broke.

snowflake · Jun 27, 2017

2Wheels:
Not true. I got a blue '03 250f. Wouldn't start. Gave $400. Pulled it down found hot rods crank/rod no slop. Weisco piston spec gap, crosshatches on jug. solvent test valve seat-check. Buttoned up. cleaned the mossy chunky ethanol crust from the carb. New gaskets. 35 hours and still running strong. Of course, now is the time to decide. Keep- new top end and valvetrain or sell as is. Honestly, I think I'm done with carbs so...

cr500faf swap

snowflake · Jun 27, 2017

the new one ain't broke either.

2Wheels:
It took a while for the others to catch up. I'm almost worried about the new 4 valve design. They fixed something that wasn't broke.