Ollie.T's Aprilia RS250 rebuild and restore

[Ollie.T]

You seem to be missing valves, cams and 6 cylinders mate.

I had some of those, but I never could get them working with my RED POWERBAND!!! Though I might of had the two stroke wheels on it still...

[gammaguy]

You seem to be missing valves, cams and 6 cylinders mate.

some would call that missing

i would call it a recipe for happiness

[tigertim20]

More pics!

We got any piston fortune tellers? Im hoping that these pistons are gonna have a long and happy life! (and retire of old age in approx 6000km rather than explode into many bits destroying the engine)

There is quite a bit of carbon buildup on the upper cylinder, what do people think?

The guy before me said that the owner before him seized it when the oil pump broke - so the engine was rebuilt at approx 8000km (though he had no proof of work done). Like I said before its done 16000km now, 14-16000km is ok for a pair of pistons right?

they dont look too bad, but really you cant predict the life expectancy of a piston by looking at it.
You have it open and apart, just replace them anyway, then you KNOW how old they are, and whats been done and when.

looking forward to reading this thread, loving all the rebuilds going on at the momment!

[eelracing]

but you can prob just take the heads off and look down. won't be able to see the sides of the pistons or the rings tho.

Cheap bastards smoker tip...don't throw away good money by replacing head gaskets unnecessarily.RGV cylinder base gaskets are half the price of head gaskets...you know it makes sense.

[Ollie.T]

Cheap bastards smoker tip...don't throw away good money by replacing head gaskets unnecessarily.RGV cylinder base gaskets are half the price of head gaskets...you know it makes sense.

NOW you tell me

http://www.apriliaforum.com/forums/s...-to-get-70-BHP

Does anyone know anyone who has done the 1.4mm base gasket/ O-ring mod?
How much do you reckon it would cost to get someone to machine it?

It seems like a fairly straight forward mod, and although it would be fucking sweet, I'm not really after some sort of fire breathing beast (if it leads to a rebuild every 5000km or so...) How do people think it would be reliability wise....

[Fast Eddie]

Cheap bastards smoker tip...don't throw away good money by replacing head gaskets unnecessarily.RGV cylinder base gaskets are half the price of head gaskets...you know it makes sense.

hehe yea, I just take the whole cylinders off and leave the heads on eh.

[Fast Eddie]

NOW you tell me

http://www.apriliaforum.com/forums/s...-to-get-70-BHP

Does anyone know anyone who has done the 1.4mm base gasket/ O-ring mod?
How much do you reckon it would cost to get someone to machine it?

It seems like a fairly straight forward mod, and although it would be fucking sweet, I'm not really after some sort of fire breathing beast (if it leads to a rebuild every 5000km or so...) How do people think it would be reliability wise....

was planning on doing it myself, I don't think it will effect reliability at all if you do it right. Don't up the compression, just machine the heads to take o-rings and then adjust the base gasket to keep the compression standard. Just means u can take the heads off and not need to replace the head gaskets everytime. I think when you do this o-ring mod you redo the squish clearances again etc. Will prob lead to a nice running motor. Get into it!

[ducatilover]

Less chit chat, more work.

[Ollie.T]

Ok, in the last couple of days i have:

-Sent forks up to Kiwi suspension solutions to see what Mr Taylor can do with them
-ordered new rubber circley bits
-got laser eye surgery (which costed more than my bike!! )

When i was taking the carbs apart, I saw the choke guide bit (little plastic nut thing which holds the choke cable into the carb) has broken on one of the carbs (and i imagine with the plastic being 16 years old, the other one is pretty brittle.)
Does anyone know if it is the same as the RGV one?

[ducatilover]

Mikuni P/N is 13418-43410

http://www.cheapcycleparts.com/produ...s-holder-guide
http://www.ultimateparts.net/aprilia/c.php?id=18051
http://www.plenternz.com/product_inf...p329o4f1a0nt65

How has the laser surgery worked out for you?
I am chasing the plonkers in power up to correct my homo lazy eye, then I hope to get laser done.

[Fast Eddie]

Ok, in the last couple of days i have:

-Sent forks up to Kiwi suspension solutions to see what Mr Taylor can do with them
-ordered new rubber circley bits
-got laser eye surgery (which costed more than my bike!! )

When i was taking the carbs apart, I saw the choke guide bit (little plastic nut thing which holds the choke cable into the carb) has broken on one of the carbs (and i imagine with the plastic being 16 years old, the other one is pretty brittle.)
Does anyone know if it is the same as the RGV one?

how much did KSS quote you for front forks? he quoted me about 1,500 for my fronts.. I think I'll do it another day haha.. u can buy Race Tech Gold valve kits and springs etc to redo ur own suspension.. looking at about 300 US (about 350NZ at the mo) plus ur own labour time. I'm gonna go for that i think. it wont be as good as KSS obviously but i might learn a thing or two and keep the jew in me happy

my plastic choke nuts were also buggered. let me know where/when u find replacements urself and I'll grab some too hehe.. been too lazy so far to get em. got other things to do

[ducatilover]

my plastic choke nuts were also buggered. let me know where/when u find replacements urself and I'll grab some too hehe.. been too lazy so far to get em. got other things to do

Hopeless fuck, look at the links in my last post

[gammaguy]

Cheap bastards smoker tip...don't throw away good money by replacing head gaskets unnecessarily.RGV cylinder base gaskets are half the price of head gaskets...you know it makes sense.

try that on an RG400........

[Fast Eddie]

Hopeless fuck, look at the links in my last post

ahh, haha i just read thru a thread until I see a line that I want to respond to.. ya miss out on a lot haha.. chur

still keen to know what KSS is charging him for his forks tho.. if its 1,500 thats a fair amount to throw at an old smoker haha

[Ollie.T]

Choke nuts were $12 each from local bike shop, which is only a couple dollars more than online so I'm ok with it

They quoted me $86ish per cylinder head gasket though, which is crazy (seeing that they are approx $80 for a pair online, including postage) Im wondering if they got confused and quoted me for a pair? might ring another bike shop tomorrow (or if Pete from wgtn motorcycles sees this, he might let us know )

Im getting KSS to replace stanchions, cos they were pitted and going through seals like a Canadian with a club (ordered them online from emoto.com, came to just under $400 for both together including postage) and rebuild. He estimated it would cost $250ish in labour. He's also hopefully gonna measure up the spring and see what he can do in regards to getting a new shiny one put it. I did ask him to give me a quote before he starts doing anything too expensive!

Laser eye surgery is pretty damn good. Eyes still feel pretty irritated and are bloodshot though, sight has definitely improved and is meant to be still getting better as they heal. No longer need glasses/contacts for riding!