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Post by twostroker on Feb 8, 2007 23:48:43 GMT 1
ive recently brought a mk2 rd125lc that im fully restoring as my new weekend bike,reliability isnt much of an issue but speed is! can anybody tell me where i can get the following parts? leder kit for the carb as its only a 12a mk2 bike and head gasket for a autisa 175cc big bo ???re kit im looking in to fitting? at the moment its standard except for a k&n filter and nikkin pipe.does anyone recomend any other tuning mods?
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Post by Dirtbag on Feb 9, 2007 2:50:58 GMT 1
Porting , Gas flowing the barrel and reed cage.
Some people go the route of getting barrel re-sleeved and bored out to fit a YPVS 350 piston.
I'd recommend getting a reedblock spacer of about 8mm to set the cage back slightly.
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Post by twostroker on Feb 9, 2007 8:31:31 GMT 1
i cant seem to find tuning parts anywhere any ideas where from?  |
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Post by Norbo on Feb 9, 2007 22:42:40 GMT 1
Thers a few bits on the 125 lc for sale page on the main site
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Post by twostroker on Feb 9, 2007 23:29:30 GMT 1
cool ive just looked and found a few bits i want,i will place an order tomorow.
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Post by racerd on Aug 27, 2008 1:09:41 GMT 1
carbs, reed block, reeds, performance air filter, open out reed stops, leadar kit, spark plug,
non resistor plug cap, pipe, porting, sqiush, flat and polish crown of piston exhaust port
combustion chamber, corrected compression ratio = when exhaust port is closed, tzr piston,
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Post by carlos on Aug 27, 2008 21:37:54 GMT 1
I completely agree with both of the above, if you haven't passed your test and you start making massive mods you will invalidate your insurance!
If you have and accident, even if it isn't your fault and they find out your bike is modified they wont cover you!
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Post by racerd on Aug 27, 2008 21:45:27 GMT 1
mine is tuned and have no reliability problems, with tuned motors so long as you change parts when needed no problem i change my rings every 1,000 miles and a piston kit every 3,000 miles
i have heard the cagiva's can blow up once every 2 months i have even seen 3 that seized and scored the bore this was at 85 mph
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Post by racerd on Aug 27, 2008 21:55:42 GMT 1
i use 32mm flat slide carb taper ported to 38/39mm, ram air filter, spacer tube, air corrector kit, modified reed block, metal reeds on top and fibre at the bottom, opened out reed stops 16mm
of lift on the bottom and 19 mm of lift on the top, rz 350 rubber inlet manifold, boost bottle,
squish 0.96, 10 degree angle re cut into cylinder head, micron made by codnor long end can,
exhaust port chamber 40mm tapering to header flange, br9/10egv/ev, non resistor plug cap,
ported ypvs barrel power valve left open, flatted and polished piston crown combustion chamber in the head and the exhaust port chamber, runs silkolene pro 2 pre mix at 50 to 1, and re profiled the back of the reed stops for even more lift,
at the mo more tuning then big bore ypvs in time to come
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Post by racerd on Aug 27, 2008 22:03:10 GMT 1
twostroker was asking about tuning parts for the lc not go buy rs mito or cagiva the best fun is making a slow bike quick any body can go buy a quick bike to start with i could even go and ride a r1 tomorrow but when you have done 180/200 mph for some time this gets boring suppose after this then it would be a r1 turbo 500 bhp but then in the end you would get bored of that power out put then what would we do next
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Post by racerd on Aug 27, 2008 22:08:15 GMT 1
ive recently brought a mk2 rd125lc that im fully restoring as my new weekend bike,reliability isnt much of an issue but speed is! can anybody tell me where i can get the following parts? leder kit for the carb as its only a 12a mk2 bike and head gasket for a autisa 175cc big bo ???re kit im looking in to fitting? at the moment its standard except for a k&n filter and nikkin pipe.does anyone recomend any other tuning mods? mate dont take this the wrong way, with tuning reliability goes out the window, if you want the fastest 125 go buy an rs or a mito and get it deristricted, on the rs apparently its just a washer in the exhaust n re jet to match easy n cheap good for about 120mph, with the mito its a bigger job new airbox top new jet's new chain and rear sprocket and the exhaust, (on the mito it has a disruptor tube to slow the gases down you can either cut this off and patch the hole. i welded it back on after i blanked it, or race system and at 300.00 just for the exhaust it isnt cheap my full derestrict cost 300 including BBQ paint to re spray the standard exhaust after i had welded the the blank and re fitted the disruptor thingymajig) and was regularly clocked at around the 120 mark (ask norbo lol) and again went pop twice in two weeks, thank god i had a 2 year warranty, my advice to you is if you havnt passed your test go out n do so as a 350 ypvs will piss on all 125's and do it with out hitting the self distruct button every 4 or 5 months........ i took the idiot route with tuning etc and learned the hard way ;D ;D how come it went pop twice in to weeks if you tuned the lc to rev to 12,000 rpm then yes it might go pop dont you think 11,000 rpm is enough for the road |
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Post by twostroker on Aug 28, 2008 20:09:49 GMT 1
the 200cc mito sounds fun,i like the idea of putting the 200cc engine in or just top end on so the bike stays learner legal and cheaper to insure.
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Post by racerd on Aug 28, 2008 22:20:33 GMT 1
you not considered trying to mod the lc to take an rs or mito motor, could be my old tzr did 115mph on the speedo with out full fairing and also have a big bore barrel for the lc, or a sdr 200
motor
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Post by Norbo on Aug 29, 2008 13:16:49 GMT 1
Id say it depends what you are using the bike for and who you are riding with. and if its your only bike . If you have a biger bike then tune the hell out it why not . its nice to suprise a biget bike if you get a real fast starght from the lights and still pulling away at just over a ton . I love it . Just hold it for long last all .
If its a weekend toy or a bike pub ride each week and you race with other simuler bikes. Tuning is fine it will make it faster. You can make them go quight fast with a port and a few other mods . But they do take more looking after and can let go at any time. You may be lucky. I have had a coule of tuned up 125's and they went well for the entire time i had them no problems at all ever. But i have allso had others that have blone up when having a good thrash.
If you use the bike for work or use it a lot i would say just keep it standard and put a pipe on it and rejet and ajust the oil pump to compensate by doing a plug chop .
You will never get it to be over fat any way and a unresticted rs or mito will burn it of in a race every time. They are quight fast and reliable when set up correct and loads of fun as they are i thinki. Id say Love the bike for what it is and dont try to make it a 350lc it wont be.
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Post by carlos on Aug 29, 2008 15:57:04 GMT 1
I think going on a diet may be a good way of getting a few extra mph out of mine, I'm 16 stone! The heaviest I've ever been!  But hey, I'm fat, I can diet! Some people will always be ugly!  |
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Post by Norbo on Aug 29, 2008 20:01:22 GMT 1
I'll tell Jazzy you said that. LOL
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Post by twostroker on Aug 29, 2008 21:18:58 GMT 1
im only 9.5 stone at the moment,the same as i was when i was 17 and in 26 now,so i cant use that excuse for my bike not being fast enough lol
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Post by racerd on Aug 29, 2008 23:06:36 GMT 1
there must be a mismatch in the set up some where
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