KX250 rebuild - after all I've ridden it half a dozen times and it's worn out

[cheese]

Hmm, you know, you might be better off parting that bike out and buy another bike.

[Taz]

Now which is better for trail riding... low down grunt?

FFS just ring Scott at MR Motorcycles. I was in there today too

[Pornstar]

Reply from Boyesen... impressed.

You do have a Boyesen RAD Valve. The Boyesen RAD Valve for a 1992 KX250 is part # RAD12. This RAD Valve should have a “12” stamped into the side of the aluminum reed block.

The Pro Series RAD Valve replacement reeds (fiber glass bottom reeds & carbon fiber top reeds) are part # PSR-15, and the Power Reed RAD Valve replacement reeds (fiber glass bottom and top reeds) are part # RL-12. Attached are pictures of both reeds.

The price for part # PSR-15 is $66.95 USD + shipping, and the price for part # RL-12 is $47.95 USD + shipping.

RL-12 (Power Reed RAD Valve replacement reeds)


PSR-15 (Pro Series RAD Valve replacement reeds)


Now which is better for trail riding... low down grunt?

Christ man, just buy some and be done with it. Carbon imho, carbons cool.

[Arronduke]

A few beers and a little more dismantaling .... aim is to get the motor out... easy... had to go slow to avoid feeding the kids.....

Dent in the frame that needs to be removed... tack a washer at the impact point with my tig and use a puller to pull it out. The key is to weld the washer on the exact impact point... that way the dent will pull out. Plan is to over pull it and pein it back and file smooth. This is to powder coat the frame... other wise .. bog and paint. I like the powder coat option.

picture too follow when I need to go back to the shed!! to find the SPOT... hee where it is yee haaa thats good.. oh and where is the frame.

Oh and question can you buy the rubber tank things... they are gluid on and I only have three.

motor removed.



and water runs out of the magneto cover....


nice...NOT.. if this was a road bike it would not be going... I'm rather impressed how these dirt bikes work. Being a dirt bike newbee (6 rides and 3month ownership) its amazing that it still went.. and well. Oh would not idle which made riding it hard.. had to keep reving it.


HELL if this was my road bike... let alone my RG500...(image... twin crank , square four 500 two stroke motor..... cost to rebuild 5k avg them cranks are moon beams)

Anyway motor ready for surgery...







And...

[Arronduke]

Porn Star... like your style... rush rush rush... like being 22 aging with a hair trigger knob... ... I'm spending good money on an old heap of shit and plan to keep it, have too.

So every bit is thought about and researched... so when it finished I know i have done my best for the budget allowed....

Internmet work on reed valves done and the power RAD valve is recomended for trail .. low down power and it the cheaper option.. I like that. so yes decision is for good reasons... I am happy with it..

[cheese]

JESUS, that bike is going to be a money pit!

[Taz]

JESUS, that bike is going to be a money pit!

Tell me one that isn't?

[grantman]

Arron and money pits go hand in hand
Check out his other posts ! (buckets)

Fixing a dent on a dirt bike

What next!

[browny]

cool thead. i also wish i had enough spare cash for a mission like this.lots of fun

[Stylo]

Porn Star... like your style... rush rush rush... like being 22 aging with a hair trigger knob... ... I'm spending good money on an old heap of shit and plan to keep it, have too.

So every bit is thought about and researched... so when it finished I know i have done my best for the budget allowed....

Internmet work on reed valves done and the power RAD valve is recomended for trail .. low down power and it the cheaper option.. I like that. so yes decision is for good reasons... I am happy with it..

Porngod, as before , you should have bought one of these and you would'nt have any problems ...only my 5 cents

[barty5]

i have one of these although a 125 the may be some bit if you are missing i could help out with we are wrecking the whole thing let us know pretty sure the rubber tank thing you where on about are there.

[Arronduke]

BARTY5

VERY COOL...I will start a list.

first up... rubber tank suports things... and foot peg springs... throttle, cable is ok just the throttle unit.

Swingarm chain adjustment bolt and nut... one ceased and I had to drill it out.

cheers

[barty5]

BARTY5

VERY COOL...I will start a list.

first up... rubber tank suports things... and foot peg springs... throttle, cable is ok just the throttle unit.

Swingarm chain adjustment bolt and nut... one ceased and I had to drill it out.

cheers

all good ill start dismantling throttle unit you mean the twist grip part ?

[Arronduke]

barty yes that would be good.
The one I have is cracked.. no rush as you can imagine I won't need it for a little while.

I'll PM you regarding cost.
Cheers

[Arronduke]

Did a little more pulling apart tonight... main aim was to have the frame and swingarm ready to go to the powder coaters tomorrow.

Everything was going fine until it came to removing the collapsed swing arm bearings... the swingarm bolt had started working its way through the side of the bearing shell.... and there are two bearings on each side and both on one side were rooted. there is nothing to hit them out with and they are in there very tight.

Time to start up the arc welder and put some weld on the inner shell and shrink the shell and give me somthing to hit...







removed, if these had been left much longer it would have been very bad for the swingarm so from that point of view its all good.

Spent my first few dollars last night..

FMF Fatty pipe $238
FMF Power Core silencer $109
Pivot works bearings and seals for the swingarm, steering head, shock and linkage .. all from the USA landed for $200 plus freight of $98. So total is $644 NZ.

Quite happy with the price as I have seen a FMF fatty on trademe for $475.