Hi,
2 months before i had a seizure.

The bike started again but with lower compresion.So took the barrels of

and saw that the rear one was a mess... seizures in 4 corners and pieces of nicasil missing.

checked the front barrel and was fine.checked it again and found out that
it has a very small crack on the bridge.

I paid 1000eur before 5 months for plating,pistons,etc.

The problem is that i dont know the reason. Oil pump checked seemed fine. jets cleaned and everything on bike is stock. any ideas?

Not warmed up enough?

Too tighter piston to bore clearance?

Cheap oil?

Poor replate?

All 4?
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If I have to take the carbs off once more...

I almost always warm it up. i was traveling when it happened.

Always sunthetic oil! So, poor replate or the second...

I replated them in holland.The greek tuners seem to send them in holland

Can you propose me someone who is doing it fine and how much?Here in
greece my only option is to fit liners...

I'd say bits of plating missing is always bad plating, you never see o.e. Honda plating coming off.
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Please do not PM me technical questions, if you can't find it on the Forum start a thread

Try and find some good second hand un-molested barrells... Way better than a replate.
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NSR300R - Why did i ever have a 250...

i got one too a seizure after 2000km of rebuild, must be bad plating, i will see soon when the shop opens her up. should not have to pay i hope.
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feel the wind

Its a little difficult to find 2 good barrels at reasonable price and then find

and match pistons.I am very sad because i wanted the best for my bike

and i chose to plate the barrels from fitting liners like others do here

(greece).And what did i get?seizure and cracked bridge.

I didnt trust the liners cause i heard about seizures at first 100metres.It needs a lot of precise and good work to be done when fitting liners to last years.
But from my personal experience saw that
this damn replate is difficult to succes too. I havent got the 1100eur plus

for the 300kit i only have the money for a second replate.Is there anyone

in this world who can replate nsr 250 barrels like they are his own?

NSR-LOVER wrote:Its a little difficult to find 2 good barrels at reasonable price and then find

and match pistons.I am very sad because i wanted the best for my bike

and i chose to plate the barrels from fitting liners like others do here

(greece).And what did i get?seizure and cracked bridge.

I didnt trust the liners cause i heard about seizures at first 100metres.It needs a lot of precise and good work to be done when fitting liners to last years.
But from my personal experience saw that
this damn replate is difficult to succes too. I havent got the 1100eur plus

for the 300kit i only have the money for a second replate.Is there anyone

in this world who can replate nsr 250 barrels like they are his own?

http://www.stanstephens.com/nicosil.htm

i have found stan stevens good for plating and have owned a few bikes tuned by him that were well put together and lasted as long as the standard bike would had.
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Honda nc23 CBR400 AERO 1986, 1990 honda NC23 Tri-Arm, 1987VFR400 NC24 Rothmans Rep, NSR250 MC16 1987, CL250s 1983. Moto guzzi zigolo 110cc 1958. Fantic 50cc 1972. Suzuki Cobra Race bike 500cc 2t 1975 , GP125 1975. Triumph T110 1954. BSA Thunderbird 1955. Ariel VB 600 1952, 1990 MuZ 125 etz.

check the japanese auctions. I got a brand new MC18 cyclinder recently from okshon as well as 2 sets of new powervalves. The MC16/18 new stuff is thinish on the auction site, but there is a lot more MC21 stuff avaliable.

cheers,

Stan Stephens DOES NOT replate barrels - they are farmed out to a specialist plating company.

I don't personally know of ANY engine builder/tuner that plates their own barrels. I do know a many that are considerably LESS ignorant than Stan Stephens however!
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Andy.
NSR-WORLD.COM

Please keep all responses to Forum posts on the Forum so that others may benefit.

Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.

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he seemed ok when i sent stuff to him in the past, and the plating on the barrels i got him to send off outlasted the rest of the engine that they went into.

who else is cheaper and good quality for plating as i am rebuilding /tuning a engine from a 1974 s****i t500 i am going to race next year and im doing it on a budget?
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Honda nc23 CBR400 AERO 1986, 1990 honda NC23 Tri-Arm, 1987VFR400 NC24 Rothmans Rep, NSR250 MC16 1987, CL250s 1983. Moto guzzi zigolo 110cc 1958. Fantic 50cc 1972. Suzuki Cobra Race bike 500cc 2t 1975 , GP125 1975. Triumph T110 1954. BSA Thunderbird 1955. Ariel VB 600 1952, 1990 MuZ 125 etz.

You don't need to "star out" Suzuki on here...

Pretty much all I won't stand for is TXT in posts, over-the-top swearing (used to have some readers who's kids also looked on the site), and bore-stroke chatter!!
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Andy.
NSR-WORLD.COM

Please keep all responses to Forum posts on the Forum so that others may benefit.

Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.

Check us out on Facebook! Please "like" our page!

lol how do you know i was putting suzuki on there, apart from the cobra and the 500 gamma im not a fan of suzuki that why i put stars lol.

whos good for nicosol platting then?
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Honda nc23 CBR400 AERO 1986, 1990 honda NC23 Tri-Arm, 1987VFR400 NC24 Rothmans Rep, NSR250 MC16 1987, CL250s 1983. Moto guzzi zigolo 110cc 1958. Fantic 50cc 1972. Suzuki Cobra Race bike 500cc 2t 1975 , GP125 1975. Triumph T110 1954. BSA Thunderbird 1955. Ariel VB 600 1952, 1990 MuZ 125 etz.

alannsr250 wrote:whos good for nicosol platting then?

Is that made by the same company that makes Autosol?
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If I have to take the carbs off once more...

I've had a few cylinders re-plated by langcourt in Weston Super-Mare over the years (not NSR) http://www.langcourt.com/index.htm and they have always been a good job. Not sure it's any cheaper going direct than it is going via BDK or Stan or whoever though as they doubtless negotiate trade discount with the plater. Not sure if BDK or Stan use Langcourt or the other big UK plating place, the name of which escapes me just now

Cheers

Wb