Oh no!

[KLOWN]

Well, my power valves have dropped into my engine so now I have a large expensive paper weight. :cry: :mad: On the plus side it looks like the cylinder wall is still all good. I'm gonna need new power valves and a new piston and probably lots more things :spudguita: if anyone can give me advice or help it would be much appreciated

[Sniper]

PM TonyB, he might be able to help.

[SlowHand]

welcome to the world of fucking rg's. fuck!

[scumdog]

Get a four-stroke.

[Momentum]

i 2nd that get a 4 stroke

[KLOWN]

its cheaper to buy a 2 stroke and have the engne seize a couple of times then buy a 4 stroke (in regards to the price for my bike compared to a similar performance 4 stroke, i.e cbr250rr or zxr)

[Ixion]

4 Strokes drop valves also, someone on here had it happen just the other day. What you need is a PROPER 2 stroke , without any valves or such like thingies. Valves, cams , chains, all affectation, bikes don't need them. Crankshaft, conrod, gudgeon, piston barrel and head. (and a few bolts circlips etc). Sorted.

[imdying]

Pfft... motors with removable heads, that's just more technogarbage to go wrong, you should know that!

[cowboyz]

that sucks for ya man. Just do the rebuild and learn from it. cant see much you could have done differently really. just bad luck really. "maintance" means "rebuild" for 2 strokes.

[R1madness]

True enoough. Most performance 2 strokers need better oil than anyone wants to pay for.
Rings every 10000k, pistons every 20000k, power valves every 20000k. Crank seals and bearings every 40000k, Thats the life of a good 2stroke. Its ok not to do any of them and just run it til it craps out but then ya just end up stranded in the middle of nowhere and with a scuffed cylinder wall (man you are lucky with yours).
Fix it up, use better oil if ya possibly can afford it, and ring its bloody neck, thats what it loves.

[Ixion]

True enoough. Most performance 2 strokers need better oil than anyone wants to pay for.
Rings every 10000k, pistons every 20000k, power valves every 20000k. Crank seals and bearings every 40000k, Thats the life of a good 2stroke. ...

100000km on the original bores, one new set of rings. Crank seals and bearings last 30 to 40 years on average. Thats the life of a GOOD two stroke.

And yeah, I'm still not too chuffed about removeable heads.

If you MUST have a 4 stroke with all them extra bits, make it a side valve, much more reliable.

[R1madness]

Yea i like that. :drinkup: for that man hahahaha

Sorry i should have said a high performance 2 stroke. :argh:

[Timber020]

With the 2strokes at least the repairs are generally straight forward, I saw a $4500 quote for fixing a GSXR250 engine a few years back.

People bitch about 2 stokes being unreliable but they are as good as they are serviced. 4 stroke 250's might be more reliable but they put out less than the pope. Even the most modern wont beat a 20 year old 2stroke.

[KLOWN]

I treated her the best I could but, I knew it would happen eventually. This is going to be a long build cause i'm so dirt poor :violin: and will be doing everything myself and starting uni in a couple of weeks. If anyone has got a manual I can borrow/copy or can give me some advice thanks. I hope to get back on 2 wheels ASAP, I miss riding already :ride: :ride: :ride:

[KLOWN]

Is there anyway that my bits of broken powervalve could have made it past the piston and made its way to where the crankshaft is?

[Jamezo]

Is there anyway that my bits of broken powervalve could have made it past the piston and made its way to where the crankshaft is?
Lol. Could they have? (I'd doubt it) I guess isn't not impossible that they could have gone out the exhaust port (in fact it's probably more than likely). Did you reconstruct the pieces to check for anything missing?


In any case, my condolences. :( What happened, were you covering the clutch eh?

[Pathos]

4 stroke 250's might be more reliable but they put out less than the pope. Even the most modern wont beat a 20 year old 2stroke.

No ones bothered to make a high tuned 250 for years, theres no profit in it so the 2 strokes have no competition.

[KLOWN]

Lol. Could they have? (I'd doubt it) I guess isn't not impossible that they could have gone out the exhaust port (in fact it's probably more than likely). Did you reconstruct the pieces to check for anything missing?


In any case, my condolences. :( What happened, were you covering the clutch eh?

yeah a large part was mssng thats y the queston. (my eye button not useable)

[Jamezo]

yeah a large part was mssng thats y the queston. (my eye button not useable)

Eek. I'd be checking the expansion chamber. I doubt a large piece could've made it through the fuel mixture-porty-thingy, to below the cylinder.

[Pixie]

100000km on the original bores, one new set of rings. Crank seals and bearings last 30 to 40 years on average. Thats the life of a GOOD two stroke.

And yeah, I'm still not too chuffed about removeable heads.

If you MUST have a 4 stroke with all them extra bits, make it a side valve, much more reliable.
These puppies will never know the joy of owning a reliable,long lasting, 2 stroke

[DEATH_INC.]

It shouldn't get into the bottom,the exhaust port is never open into the crankcase and the chances of it going down a transfer while the mixture's coming up are fairly slim.
Bloody Zookie powervalves, my mate bought a rgv 250 and had this happen a couple of weeks later too....dunno what idiot made 'em so when they fail they fall into the piston :finger: