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| bike set up 101 | |
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| Topic Started: 10 Nov 2011, 11:04 (439 Views) | |
| rookie | 10 Nov 2011, 11:04 Post #1 |
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bike setting up is a very personal thing same bike, 2 different riders, same skill level, same weight, or maybe same height BUT! this 2 bike set up might be a day and night different. what to do when you just got a bike? be it new or used. just a quick one here. just got myself a used 2010 KTM 150sx i spent about 2mth setting up the bike stuff that i have done - a change of new gearbox oil (get a bottle of good 2t at the same time) - grease up all bolts,nuts, joints, etc - set up the bike suspension, race sag, etc - set the correct chain tension, PDS require abit more special setting, the chain need more slack, unless you own the new 2012 KTM with linkage - strip the carb for thorough cleaning + proper jetting for WOT riding (i dun wan a piston jam!) - tension all spokes properly, no loose spokes - pressure of clutch + brake lever (including the position) - fork position, how high or low will help in riding - clean out airfilter/ airbox + airboot - setting up out powervalve (for 2st only, of coz!) - proper torquing of critical bolts/ nuts i tink it is all about this so far. the rest will be just regular maintenance to follow up i believe Harold now can feel the different before and after setting up the bike right?  do post up any question here and i will be glad to help, be it KTM or Jap bike. Edited by rookie, 10 Nov 2011, 11:06.
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| rookie | 22 Nov 2011, 22:27 Post #2 |
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alright guys just a kick start on the jetting part, will be taking example from my bike a '10 KTM 150SX the carb was strip down for a thorough cleaning looking into the carb, the carb is still running with stock setup, but was almost ballpark use a carb cleaner for cleaning.  main jet is #182, pilot jet is #42 airscrew is 1.5 turn out N=needle, NOZI, clip #2 plug is surprising #7  stock is suppose to be #9even with heat range #7 plug, it looks rich! the left is the #7 plug, right is #8  anyway, jetting process has started and it is only half way thru airscrew is best at 1.75 turns out (great response from idle circuit) NOZI, with #1 clip, the midrange response did improve slightly, but butt dyno.  looks like i need a leaner needle for better jetting! anyway, for the plug, i just blonk in a #9, as riding a small bore machine, ya need to pin it and ya need it to keep it cool. i was riding the OTH in the above mentioned setup, not a 100% ideal jetting still. ================================================================== after visiting many old uncle bike shop along jln besar i found this hidden treasure  heard it is the one and only piece in sg, and was from HRC 2stroke keihin carb wanna buy also can't buy it. anyway, i got the honour to use it to try it in my bike. hear it will boost the midrange tremendously. time to pull out the tool box again.  |
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| rookie | 22 Nov 2011, 22:38 Post #3 |
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btw, if ya plug is whitish like this, STOP riding!! i copy this pic from ktmtalk, this is a 4stroke plug.  |
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| airtime | 24 Nov 2011, 18:46 Post #4 |
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wow,the plug is so "white" ..... lucky u rookie 2 find such a needle!  4 guys who can't see wats so special with the "bronze" needle...check out the taper. dat is wat would make the difference in the mid range pulling power of a 2stroke. post the test results out after u r done ...possible? 
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| rookie | 24 Nov 2011, 21:19 Post #5 |
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alright, the "factory" needle in installed! check out the different between this "factory needle" and the stock needle i hope this needle can pull out another 1.5 horsie from the engine!!  
Edited by rookie, 24 Nov 2011, 21:21.
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| airtime | 24 Nov 2011, 23:57 Post #6 |
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now we know how "stock" yr bike is!  all the hidden trick parts! ok back to being serious. did u do any static testing juz now after fitting on the needle? will u be testing it out dis sunday?
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| rookie | 25 Nov 2011, 08:10 Post #7 |
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no static test man. I'm a considerate neighbour! Unlike you! lol! |
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| airtime | 25 Nov 2011, 19:39 Post #8 |
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sorry i 4got dat i m staying in a "ulu" part of s.g! where we have dis little freedom of doing static testing! u wanna join us 2 test/ride in the west on sunday?
Edited by airtime, 25 Nov 2011, 19:41.
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| rookie | 25 Nov 2011, 20:40 Post #9 |
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ok! keep me updated.
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| airtime | 26 Nov 2011, 00:49 Post #10 |
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hi...P.M u abt the arrangements 
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| rookie | 27 Nov 2011, 17:57 Post #11 |
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finally back home!! had a enjoyable and fruitful day today. after the usual premixing ritual the bike got fire up, while doing the static testing at the track side, i can already feel the "power" i wonder how airtime can do this static test without disturbing his neightbour, really inconsiderate...   i pity his neighbour...  anyway, the first ride impression midrange power is improve tremendously! esp from 1/4 to 3/4 throttle, it is insane!!  time to look at the top end power. now is #180, after testing a few round of plug chop test the MJ now settle at #185, with the plug burning perfectly at tan color now, the roll on throttle, from 1/8 - 1/4 is my headache ... out of corner in 2nd gear is bogging badly... turn the airscrew in out also not much help. switch to a smaller size pilot jet, trying it out, but it is still not what i want... finally, after meddling with the extreme airscrew setting, i found the way home. from #40 -> #45 is the key back home!! now, in 2nd gear outta the same corner, the torque have improve significantly. without the use of the power lever, it can chug my ass around without any issue now. as of now, this is the best jetting setup!! it feels like it gain about 2 horsie!! Edited by rookie, 27 Nov 2011, 17:58.
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| haroldlouiz | 27 Nov 2011, 22:53 Post #12 |
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*like lol. Ur bike seems to wheelying all the time. Hahah |
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| airtime | 27 Nov 2011, 23:37 Post #13 |
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wat was the quote for the day while we were testing the bike? anyway,i use the noise from the construction sites 2 cover the noise dat i make,rookie .... test smart is the way 2 go! now dat u have tested the needle out,p.m me the shop where u got it from? or can u loan me the needle 2 test on the p.wk carb.
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| rookie | 28 Nov 2011, 11:10 Post #14 |
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hi airtime sorry but this is the one and only piece of (HRC)factory needle in sg it is a carefully hand-ground down needle with special angle taper. you can't get it anywhere else now!
Edited by rookie, 28 Nov 2011, 11:10.
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| rookie | 28 Nov 2011, 13:34 Post #15 |
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the burning of the heat range #9 plug (the coolest plug compared to #8 and #7) i got the bke with plug #7 and it was blackish everywhere. now with #9 plug in, and the burning is almost there (i prefer abit on the rich side though as i bounce off the rev limiter) just to keep the burning on the safe side. sorry for the unclear pic, if u look carefully, u can see there is about 1/4 black ring and 3/4 of brown ring before this, it is 3/4 black ring. 
Edited by rookie, 28 Nov 2011, 13:36.
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| airtime | 29 Nov 2011, 00:56 Post #16 |
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hi rookie, did u get it from the shop where there r some "factory kitted" honda RS 125s laying in the back of the shop along jln besar? now dat yr bike jetting is all set up...wanna help me break in n set my suspension n jetting up 2?
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| rookie | 29 Nov 2011, 15:19 Post #17 |
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yo airtime, dun tell u where i got it from!! as for the setting up of the suspension you guys can take a look at what i posted earlier --> suspension race sag setting i believe a couples of the riders who have pm me have got their bike setup and are please with it now.
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| airtime | 30 Nov 2011, 15:32 Post #18 |
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hey rookie,i went 4 a walk about along jin besar yesterday.... spent a couple of hrs with the old man b4 he let me in his back store...... i saw a 1960's TZ 125 there! but i came out of the happy ..n with a needle 2! the old man is still waiting for his coffee dat u promised him! tonite prize presentation will u be heading down? |
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| rookie | 30 Nov 2011, 15:58 Post #19 |
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hahaa, now u found that old man he was one of the main key figure back in the 60s,70s when the motor racing is prime during that period of time. i bet that the needle he pass to u is not as potent as mine. anyway, i oso owe him 2 piece of prata. will be there tonite, about 9pm+
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| airtime | 30 Nov 2011, 16:21 Post #20 |
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anyway,u better go and settle with him b4 he get at u the next time he see's u!
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