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shager
Scooby Slapper



Joined: 04 Jan 2006
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PostPosted: 21:46 - 14 Apr 2006    Post subject: whats wrong? Reply with quote
there is black liquid drops coming out of the exhurst and the bikes not picking up speed right
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code guru
Brolly Dolly



Joined: 25 Jan 2006
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PostPosted: 21:51 - 14 Apr 2006    Post subject: Reply with quote
wot bike is it?
2t? its normal for a 2t as it burns the oil if its a 4t the piston seals r worn,
try unblocking your exhaust but i dont know hopw 2 do that, some 1 told me u have 2 do it every 1k on a 2t Shocked
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shager
Scooby Slapper



Joined: 04 Jan 2006
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PostPosted: 21:54 - 14 Apr 2006    Post subject: Reply with quote
it is a 2stroke 125
just had new piston so thats not the problem
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code guru
Brolly Dolly



Joined: 25 Jan 2006
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PostPosted: 21:56 - 14 Apr 2006    Post subject: Reply with quote
no it wouldnt be the rings as its a 2t and it burns the oil but some oil can pass though the exhaust and goes into the silencer and comes out at the end. it happens 2 every 2t
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shager
Scooby Slapper



Joined: 04 Jan 2006
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PostPosted: 21:58 - 14 Apr 2006    Post subject: Reply with quote
so y isnt the bike picking up power?
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code guru
Brolly Dolly



Joined: 25 Jan 2006
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PostPosted: 22:01 - 14 Apr 2006    Post subject: Reply with quote
shager wrote:
so y isnt the bike picking up power?

new piston? have u run it in yet or it could even be your exhaust. have u checked your spark plug or air filter? and u mean its picking up the power slowly since u have the piston change ot did u notice the diffrence after?
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shager
Scooby Slapper



Joined: 04 Jan 2006
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PostPosted: 22:06 - 14 Apr 2006    Post subject: Reply with quote
i never rode the bike before as it needed a new piston when i bought it. and i changed the spark plug
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code guru
Brolly Dolly



Joined: 25 Jan 2006
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PostPosted: 22:17 - 14 Apr 2006    Post subject: Reply with quote
who fitted the piston and have u run the new piston in? if u havent u might have trashed the piston or barrel. have u got the correct spokets on the bike? jc 22 bike has a 14 as std and a 15 if u derestict the bike, is your bike deresticted? check the neck off your exhaust were it connects 2 your enghine
www.nsr125.com had loads off good info. check your jetting as well and spark plug color
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simon1221
World Chat Champion



Joined: 28 Jul 2004
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PostPosted: 23:01 - 14 Apr 2006    Post subject: Reply with quote
If you have only just ridden it after the rebuild then a little oil may be okay, as you must put 2t oil on the rings and the piston during the rebuild.

However if you thrash it wihtout running it in then you may as well just do it al over again.

Search on here or google for running in a 2t for the best advice.
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derbisenda16
Nitrous Nuisance



Joined: 13 Apr 2006
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PostPosted: 23:47 - 14 Apr 2006    Post subject: Reply with quote
code guru wrote:
it happens 2 every 2t


Let me correct you..it does not..It wil only happen if you are using shit oil, like mineral. Use fully synthetic and this will not happen as it all burns... Thumbs Up
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code guru
Brolly Dolly



Joined: 25 Jan 2006
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PostPosted: 00:40 - 15 Apr 2006    Post subject: Reply with quote
derbisenda16 wrote:
code guru wrote:
it happens 2 every 2t


Let me correct you..it does not..It wil only happen if you are using shit oil, like mineral. Use fully synthetic and this will not happen as it all burns... Thumbs Up

true but still u never know wot the prev owner used, i started useing fully on my old ped 70cc ice and the end off the silencer woz black coz off the oil but if the bike has done loads off milage surly it would still build up in exhaust but not as bas well as it would with semi
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derbisenda16
Nitrous Nuisance



Joined: 13 Apr 2006
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PostPosted: 01:51 - 15 Apr 2006    Post subject: Reply with quote
yes..again it all depends on your circumstances...Personally i have a meta Kit thrower exsaust pipe fitted on my bike...Next to no residue/remains of oil is 'stuck' in the pipe as my silenser has no baffles... if your using a stock exsaust..well yes..there is likely to be a build up. Also in an automatic like a scoot you cannot potentially rev it as hard as a geared bike, thus not being able to clean the whole system effieciently..
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tatters
Exxon Valdez



Joined: 05 Jan 2004
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PostPosted: 02:17 - 15 Apr 2006    Post subject: Reply with quote
derbisenda16 wrote:
code guru wrote:
it happens 2 every 2t


Let me correct you..it does not..It wil only happen if you are using shit oil, like mineral. Use fully synthetic and this will not happen as it all burns... Thumbs Up



Bollocks Rolling Eyes , it does,nt matter what oil the bike burns there will always be carbon/oily deposits, my Kawasaki KR-1S was always ran on fully synthetic castrol TTS and had the black oily carbon shit sprayed over the cans and arse of the bike as each use and thats been the same with every two stroke l,ve ever owned.
____________________
Past:NRG50,AF1125(x2),NSR125RR,ZZR250,CX500,VFR400,KR1S,ZZR600(x2),CB400N,YZF1000(x2),KH125,Z200,FX400R,CBR954RR(x2)GPZ500S,GT550,VFR750F(x2),RD350N,XR650R,CBR600F,CB250,KDX250,YZF750R,CRM250,400EXC,KLR650,TTR600RE,DR350S,R100GSPD,RGV250,VMAX1200,DL650,KZ750 Present:G650XC,C12,CRF450X,1190ADV

Last edited by tatters on 02:17 - 15 Apr 2006; edited 1 time in total
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colin1
Captain Safety



Joined: 17 Feb 2005
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PostPosted: 02:17 - 15 Apr 2006    Post subject: Reply with quote
the powervalve isnt opening properly

it will need removing, cleaning some of the crap out, and lubricating and putting back in

i only know exactly how to do this on rs125's
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derbisenda16 This post is not being displayed because it has a low rating (Spam). Unhide this post / all posts.

stinkwheel
Bovine Proctologist



Joined: 12 Jul 2004
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PostPosted: 12:48 - 15 Apr 2006    Post subject: Reply with quote
derbisenda16 wrote:


Chack your facts mate..your wrong.


I would be interested to see you back that statement up with evidence. Even the most highly tuned 2-stroke running on the most refined oil will produce a certain amount of coke and sludging in the exhaust system and on the piston.

The only exception I can think of being a couple of obscure engine designs with a wet crank that don't actually use oil in the fuel at all. Fuel injection may also burn a lot cleaner, but I never had my hands on a Bimota.
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.
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derbisenda16
Nitrous Nuisance



Joined: 13 Apr 2006
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PostPosted: 13:24 - 15 Apr 2006    Post subject: Reply with quote
I have been running my Derbi Senda 2t for the last 2 years with fully sinthetic 2t oil...Not once have i notised anything dribbling out of the silenser..Only time i notised any deposits being ejected from the pipe was when i had a new head , barrel and piston and was running it in, This was also with a stock pipe..with baffles. I now have a MetraKit thrower which is strait through with regards to the silenser.
Not once have i notised anything being thrown out. The Derbi's have two seprate tanks, One for fuel one for Petrol...Im speaking from experience. Thumbs Up
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tatters
Exxon Valdez



Joined: 05 Jan 2004
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PostPosted: 14:08 - 15 Apr 2006    Post subject: Reply with quote
derbisenda16 wrote:

Im speaking from experience. Thumbs Up



Fu*k all experience comapired to me and stinkwheels



Now run along child Rolling Eyes
____________________
Past:NRG50,AF1125(x2),NSR125RR,ZZR250,CX500,VFR400,KR1S,ZZR600(x2),CB400N,YZF1000(x2),KH125,Z200,FX400R,CBR954RR(x2)GPZ500S,GT550,VFR750F(x2),RD350N,XR650R,CBR600F,CB250,KDX250,YZF750R,CRM250,400EXC,KLR650,TTR600RE,DR350S,R100GSPD,RGV250,VMAX1200,DL650,KZ750 Present:G650XC,C12,CRF450X,1190ADV
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code guru
Brolly Dolly



Joined: 25 Jan 2006
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PostPosted: 14:50 - 15 Apr 2006    Post subject: Reply with quote
derbisenda16 wrote:
I have been running my Derbi Senda 2t for the last 2 years with fully sinthetic 2t oil...Not once have i notised anything dribbling out of the silenser..Only time i notised any deposits being ejected from the pipe was when i had a new head , barrel and piston and was running it in, This was also with a stock pipe..with baffles. I now have a MetraKit thrower which is strait through with regards to the silenser.
Not once have i notised anything being thrown out. The Derbi's have two seprate tanks, One for fuel one for Petrol...Im speaking from experience. Thumbs Up
yer but how many miles has your bike done? i mean u wont notice it on a 2 year old bike . lol
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stinkwheel
Bovine Proctologist



Joined: 12 Jul 2004
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PostPosted: 15:17 - 15 Apr 2006    Post subject: Reply with quote
derbisenda16 wrote:

Not once have i notised anything being thrown out.


Try this then. Get someone to hold a sheet of clean white paper about 6" away from the exhaust, start the bike and blip the throttle a couple of times. Now look at your bit of paper.
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.
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edd
Nearly there...



Joined: 06 Jul 2005
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PostPosted: 15:44 - 15 Apr 2006    Post subject: Reply with quote
derbisenda16 wrote:
One for fuel one for Petrol...Im speaking from experience. Thumbs Up
does your vast experience tell you your bike is fuelled by petrol? Rolling Eyes

Tatters and Stinkwheel are entirely correct.

When i had 2 strokes, they always spat oil, and coked up exhausts, regardless of the oil used. My mates 2 strokes spat oil and coked up exhausts, from highly tuned track bikes to scooters. Id love to know how you can conclude that your 2 stroke burns "all" its oil, when 2 strokes can pass a fair amount of their fuel/oil straight out of the exhaust, due to having no valve to prevent this, hence their comparitive inefficency when compared to 4 stroke engines. Even disregarding this majorly important fact, unless you have absolutely complete combustion (virtually impossible), of your mixture which contains oil and fuel, you will get oil and fuel in your exhaust.
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Bluespark Automotive - Diesel Tuning for Performance and Economy
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jonnay
World Chat Champion



Joined: 16 Mar 2005
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PostPosted: 16:09 - 15 Apr 2006    Post subject: Reply with quote
Never tried this on the NSR, but did with my scoot, if you hold a lighter at the end of the exhaust and rev the bike hard, it will catch the flame and burn off all the petrol and oil that's getting chucked out Very Happy

(either that or it'll blow the lighter out, takes ages to get it to catch)

Jon
____________________
::'04 Yamaha Jog:: || ::'01 Honda NSR:: || ::'00 Suzuki Swift:: || ::'89 Swift GTi:: || ::'96 Swift Poverty Spec:: || ::'92 Swift GTi::
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Chiz
Trackday Trickster



Joined: 06 Nov 2005
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PostPosted: 21:34 - 15 Apr 2006    Post subject: Reply with quote
Quote:
Never tried this on the NSR, but did with my scoot, if you hold a lighter at the end of the exhaust and rev the bike hard, it will catch the flame and burn off all the petrol and oil that's getting chucked out

It's not only 2 strokes that do this, my mate could do it with his bandit.
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code guru
Brolly Dolly



Joined: 25 Jan 2006
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PostPosted: 21:54 - 15 Apr 2006    Post subject: Reply with quote
that means your mates bandit's rings r a bit worn or somethink coz i cant remeber it happening on my 4t dna
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Finglonga
World Chat Champion



Joined: 27 Jul 2004
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PostPosted: 23:56 - 15 Apr 2006    Post subject: Reply with quote
code guru wrote:
that means your mates bandit's rings r a bit worn or somethink coz i cant remeber it happening on my 4t dna


Rolling Eyes Nope! Its unburnt fuel in the exhaust all 4 strokes can do it and you don't need a lighter either.
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