I have no idea what its worth in current state but after just spending £700 on a top end rebuild she went pop again today so the motor is siezed no idea why! im going to contact the guys who did it and have a moan but summer is gone now for me as i just wont have the time to get it over to them! any time soon Any way if some one is intrested in the bike in its current state make me an offer, ill give you more details but basically its tricked to the hilt. dry clutch, new chain and sprokets, etc etc, here is a link to the tyga sute where is been featured, if i have no intrest ill ebayer her when she's fixed properly. This would suit someone who has the know how and the time on there hands for the right price ill give you the MINT sp suspession i have sitting to one side, it was gona be thios winters job! oh yeah she had her crank done by andy approx 3000km's ago!
again for the right price the number plate can go too. loads of recipts!

http://tyga-performance.com/site/index.php?cPath=230_231_242_243&osCsid=00d2ebf0efd24538ac0119a1ef9a5a2a

http://www.bikepics.com/pictures/565173/

http://www.bikepics.com/members/kawasakizxr750j2/90nsr250/

BAh!!! Hum bug!

Could you give a more or less price

Mate, that's harsh and it's up to you but if it's just one cylinder it's really only worth about £250 less than it was when it was running fine to someone who's willing to rip it down themselves so don't let it go for something stupid just 'cause you're angry, annoyed, ferked off etc.

I'll wager the customery 50p a bit of ring left floating around in the crankcase got sucked up, as for £90 labour they did not take the crank out and check everything.
Andy did the same trick, spun a ring, didn't take the crank out, chucked it back togeather with another cylinder and siezed again about 1/2 an hour later.

When I took mine to Apex ages ago Garry didn't quite insist on taking the crank out but he did advise it fairly strongly as a tonne of chrome was missing from the bore. Chrome flakes knacker bearing as well as causing seizures like bit's of ring do
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I am very angry, as i asked at the time if anything could have fallen in to the crank!! and could they check... when you pay someone to do the job and then you ask them to check it all you expect the job to be done right, im calling him tomorow as i i think its only fair he redo the work!!!!!! FREEEEEEEE Bugger, I wish i had my new camer i could show you the old piston there is clearly a big bit of ring missing,

Ill probally end up keeping it!!! just when these things happpen you get really pissed, Went into the garage today......... she was sitting there in the corner like a baden.... arse out face in the corner nice arse i thought, maybe ill keep you LOL ahhhhhh fecking 2 strokes on the bright side she was flyinging when she went!!! ive ended up riding around with a finger over the clutch LOL good job 2 HUH!!!

I've moved this 'cos I know you don't want to sell it, and it will become a topic of conversation!

...and it was 45 minutes Fontyyy!

Mind you, we did build it in about 25 minutes... in the dark, in rather "cool" conditions!
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Man that's tough luck.

Go give them hell, and insist that any two stroke engineer would know that crank removal is a must after the type of failure your engine suffered. And it's not like you were being cheap what with all the extra's you asked them to do.

Actually, be nice to begin with - people are often more receptive to you sobbing about the loss of your bike, the money etc than they are if you go in guns blazing. You can always get nasty afterwards...
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rc46 wrote:i asked at the time if anything could have fallen in to the crank!! and could they check... when you pay someone to do the job and then you ask them to check it all you expect the job to be done right, im calling him tomorow as i i think its only fair he redo the work!!!!!! FREEEEEEEE

Firstly I'm not guaranteed to be right, it could be something else, but if it was bad setup that's their fault as well really unless you held it WOT in 6th for 5 miles.
A spun ring is a spun ring and they just happen, call it a design flaw if you like but most other failures are avoidable. Another one so soon is more than a little unlikely.

I agree in principle about the free work and if they were a reputable normal (i.e. road bike) engine builders and it was an engine they knew plenty about they probably would at least meet you part way.
However, BDK are 4 stroke race engine builders and not NSR specialists, if they were they'd have known the risk and certainly would have pointed out that the crank really needs to come out, Andy knew, he just chose to roll the dice.

A while ago the subject of taking NSRs to non specialists (so in the UK that means giving it to anyone other than Andy or Apex as far as I'm aware) was mentioned and it's caused pain to more than just you. The problem is even other "2 stroke specialists" are really just RGV specialists.
Monkey had his crank (on his first NSR, a really tidy 21r) done by a local dealer and very good friend, they got it rebuilt, it lasted a couple of thousand miles and never ran right still.
His bad experience and the fact Steve and Andy still had that bike to fix was the main reason I took mine to Apex and paid a lot (£1500 all in, but that was pretty much everything except a crank and includes £1000 of parts).

Really to be fair all the knowledge is here, on the forum.
Had you posted a pic with a missing bit of ring here and asked what to do, taking the crank out and Andy's experience would have been the first thing mentioned.
That's what's good about NSR-World, as individuals we've done bits and bobs, but as a whole we've seized and rebuilt (and had fail again straight away sometimes) dozens (if not hundreds) of engines. There's nothing we've not seen, done, cocked up, destroyed, replaced needlessly or bodged in some other way.
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Yeah thats fair enough!!! But i really think its a bit of ring now!!! Took the fairing off this morning, and plugs out. Bottom one golden brown YUM! Top one (the one that went last time) Darke grey with light white bits, very similar to the last one! so whats the chances of having a complete TOP end done, both barrles, heads, rings pistons and the same one going again!!!!

Im gona be nice to sam, He is a nice guy, but i am really pissed, My friends RGV500 (not the orange harris) (fonty, billy, mick and his bro met him at oulton) dropped a Piston well broke a piston skirt. it somehow got back up ontop of the piston and locked the engine solid!!!!!!!! Yet when he took that in they said they would flush the crank and have a look.

I guess the question here is would a flush work and how do you do that? Compressed air? fuel oil mix? being the top barrel i guess its not easy to flush it while engine is still in the bike??

Ill keep you all posted, And as soon as my Blinking camera arrives ill take a pic on the old piston, May have 2 soon, Ill start a collection LOL.

Quick update!!! Just called, Gary (chap with harris) is taking the bike in for me on weds, Sam was very nice, said he had flushed it all through but cant think whats happened. He's gona have a look asap!! maybe of intrest but the engine is also solid it wont move with the kick start !!!!! a sign maybe something is jammed in the top? or a heat sieazure so bad its welded to the barrel??????? AH we'll see! maybe ready for next donnington on the 2nd October, but ill have to use the CBR next friday shame as the nsr goes so well round donny!!!

I will keep you posted as to what it is and what happen's hopefully someone can learn from it!!!!!

My first NSR lasted 12min on the track. The previous owner had changed the crank and gave me the old one to show.

I don't known if he bought a used or what happened, but the big end bearing had all broken up and slapped the piston against the sides of the cylinder so the skirt broke and somewhere in between the the ring broke and pieces of it, found its way to the top and smashed the top.

BUT, I've never dismantled an NSR and only taken the crank out of an MZ before and that wasn't even airtight afterwards, but with the help of the old NSR e-mail list, a japanese manual, a parts manual and a few conversations with Matt and Paul in Thailand, I did the work.
I had the previous crank checked and the outer bearings changed locally. The cylinder was replated by Apex.

I did all the work myself and 2 years after its still running, and this is an all out trackbike.

Slow meticoulous work, and a few hints like the left hand thread on the RC valves and how to place the rings and which way to install the pistons and you can do it.

No, I don't have a workshop (but no wife either) so the engine was dis- and assempled in the kitchen.
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