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NORTEXED

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About NORTEXED

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    TT Silver Member

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  • Location
    Texas
  1. NORTEXED

    help me find this bolt

    My KTM slave guard does not have a gasket between guard and slave, but it does have one between slave and case. My middle hole stripped, so I retapped to 1/4" and has worked great ever since.
  2. NORTEXED

    05 ktm 125sx compression ?

    I'm going to check my son's for frame of reference, since it has new 2 ring piston, and was wondering hot or cold?
  3. NORTEXED

    125 jetting database?

    I don't know about a database, but Chip @ Munn Racing told me this a year ago, and it sure cleaned up a mid range stutter on my son's 05 125sx . 1468H needle - 2nd clip - this is the ticket to the midrange! 190 main-52 pilot with pump fuel race fuel - 192 main oxgenated race fuel 195 main airscrew always start at 1 1/2
  4. NORTEXED

    125SX header pipe color question

    Here's the old and new pistons: And the cylinder looked perfect with no scuffs, chips or anything.
  5. NORTEXED

    125SX header pipe color question

    Does anyone else have this blue on the first 8-10" of pipe???
  6. Question(s) Short version first... Can "summer" jetting actually be too lean in the winter, enough to cause the header pipe to turn blue??? Long version... 05 125 SX. Just rebuilt with new crank and piston and VF3 reed assy and exhaust port cleaned up. Granted, fuel was 2 month old Motul, 50:1, 93 octane gas. Bike was started and warmed up. Easily ridden up and down the street 3 separate times on different days (allowed to completely cool down). Then today warmed it up and then rode through the gears fairly hard twice, in moist dirt (good traction). Then 2 hours later, warmed up again and rode through the gears harder, about 4 times. This last time is when the header turned blue. It ran VERY good... almost too good. It did have a bit of a lean feel when revving the engine in neutral. Jetting was "summer jetting recommended by Chip Munn" and is... 190, 52, 5.5 slide, R1469G, in the 3rd groove, 500 ft elev, about 50 degrees today. I will certainly get new fuel and will richen the jetting, but would like comments and jetting advice. One other tid bit of information... the engine was being rebuilt due to a failed lower rod bearing.
  7. NORTEXED

    125SX header pipe color question

    It was the lower rod bearing that cratered, piston and cylinder looked good. The base gasket used put the piston .001 above top, we are dropping it to .002 below to see if this will help. Reeds are identical (OEM replacements) 1469 needle, 190 main and 50 slow.
  8. We posted this over on KTMTalk, wanted to try here also for thoughts: Question(s) Short version first... Can "summer" jetting actually be too lean in the winter, enough to cause the header pipe to turn blue??? Long version... 05 125 SX. Just rebuilt with new crank and piston and VF3 reed assy and exhaust port cleaned up. Granted, fuel was 2 month old Motul, 50:1, 93 octane gas. Bike was started and warmed up. Easily ridden up and down the street 3 separate times on different days (allowed to completely cool down). Then today warmed it up and then rode through the gears fairly hard twice, in moist dirt (good traction). Then 2 hours later, warmed up again and rode through the gears harder, about 4 times. This last time is when the header turned blue. It ran VERY good... almost too good. It did have a bit of a lean feel when revving the engine in neutral. Jetting was "summer jetting recommended by Chip Munn" and is... 190, 52, 5.5 slide, R1469G, in the 3rd groove, 500 ft elev, about 50 degrees today. I will certainly get new fuel and will richen the jetting, but would like comments and jetting advice. One other tid bit of information... the engine was being rebuilt due to a failed lower rod bearing.
  9. NORTEXED

    Hauling a KTM ???

    I checked, and the tow rating is 3,500 lbs, 400lb tounge weight without leveler, 500 with. His 125 is 203 dry, and I usually don't carry them with gas anyway, so I feel it should be O.K.
  10. NORTEXED

    Hauling a KTM ???

    Thanks, I mounted the hitch receiver last night, and it is hell-for-stout, mounted to the frame. The height above ground does concern me a little, and am thinking of getting my welder buddy to cut the toung, and weld in some spacer square tubing with a plate on each side to raise it 6" higher. Son's 125sx is not very heavy, and that's the only bike it will be carrying. I will strap the tires into the tracks also, good point. The hitch is rated 2000 lbs towing and 400 lbs toung weight, so I think I will be O.K. there.
  11. NORTEXED

    Hauling a KTM ???

    For lack of a better place to put this, I just picked up a Masterbuilt Hitch Hauler for the wifes van. She is not crazy about traveling to our son's races in my truck, and if we don't specificaly need the trailer (increased gas use), I thought this might work out well. Does anyone here use or have used one. I picked this one up like new for $80 on Craigs list, and am putting a hitch on the minivan tonight. Anything to watch out for or plan for? It seems well built.
  12. NORTEXED

    Who can press in a new con rod?

    Andrew, from KTMTalk did mine and trued it to .0005 runout. Good machine shop should be able to do it.
  13. NORTEXED

    Plug Cleaning

    There is a Champion plug tester just like the one pictured in my Dad's shop, that my Mom said over X-Mas I could have, so I will pick it up in a couple of weeks. It works great, we filled it years ago with the finest glass beads we could find, and it leaves a real nice finish after blasting. The plug tester also serves to get people out of thye way when you're working:foul:
  14. NORTEXED

    125SX rebuild in progress, now finished

    The 2 ring is actually the OEM replacement (supercedes) for the SX. They apparently switched to a 2 ring in 09.
  15. I had put this on KTM Talk also, but wanted to share here too. My Son's 125SX froze a lower rod bearing a couple of months ago, and the dealers were just out of the ballpark on current budget. I lucked onto Andrew over on KTM Talk, and he offered to rebuild for a reasonable charge (EXTREMELY REASONABLE), so we took the motor down at Thanksgiving. He has been working on it along the way, and we took the chasis down this past Sunday, because he said he was getting close. Well, he called Monday night and ask if we wanted to hear it, it was finished and back in th bike. Man it sounded great, and the work Andrew has done on it was beyond my OCD expectations. Andrew Cooksey is a true master craftsman, and one of the nicest and most honest guys you will ever meet. We were able to go ahead and do piston, rinmgs, and he even cleaned up the exhaust tract while in there. Pics Andrew sent me of the "art work in progress" Powervalve after diss. and cleanup Old piston wasn't too bad but, new is better .0005 runnout on crank after new rod install Exhaust port prior to Andrews handy work (5 miles of bad road) Exhaust port after some Meticulous cleanup Engine going back together And man does it sound great :roost: :roost: :roost: :roost: :roost: Good guys do still exist, and Andrew is top of the list.
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