Cobra2
Forum Replies Created
-
Posts
-
Clearances are spot on; on both cyl, intakes, a .010 slides in, a .020 dont. and ex: 020 slides, 030 dont.
However… the plot thickens …
Seeing the camshafts, I noted a strange difference… and checked with the manual. Alignment is off! On rear cyl, both index-markers points straight up, and not to each side… (see pictures !!!)Â Front:
Old and grumpy,(?), have fairly wide engine & tuning experience, "restoring/resto-mod" on cars & mc, worked as electronic tech. (retired).
GT125R - sold. New (used): 2012-GT250R-efi (sold)+ 2017-GV-125C (sold) - got my old 2018-GT-125R back... 🙂
Todays conspiracy: How-come even japanese-made feeler-gauges are made of recirculated British steel from early 70’s?
Old and grumpy,(?), have fairly wide engine & tuning experience, "restoring/resto-mod" on cars & mc, worked as electronic tech. (retired).
GT125R - sold. New (used): 2012-GT250R-efi (sold)+ 2017-GV-125C (sold) - got my old 2018-GT-125R back... 🙂
Chinese “quality”..: https://www.youtube.com/watch?v=9GAUo8eUXeU
Old and grumpy,(?), have fairly wide engine & tuning experience, "restoring/resto-mod" on cars & mc, worked as electronic tech. (retired).
GT125R - sold. New (used): 2012-GT250R-efi (sold)+ 2017-GV-125C (sold) - got my old 2018-GT-125R back... 🙂
It was not hot…but warmish…(they should have made a hinge on tank and oil-cooler, & quick-connects….)
BTW, compression was checked with 2 different meters (read identical). -both plugs out, and 1/2 throttle. (Had a long screwdriver stuck in the carb to keep it open)
Will do valves as soon as time permit.
Old and grumpy,(?), have fairly wide engine & tuning experience, "restoring/resto-mod" on cars & mc, worked as electronic tech. (retired).
GT125R - sold. New (used): 2012-GT250R-efi (sold)+ 2017-GV-125C (sold) - got my old 2018-GT-125R back... 🙂
Compression-test: 12,5 Bar (F & R)Â = 175 psi
Old and grumpy,(?), have fairly wide engine & tuning experience, "restoring/resto-mod" on cars & mc, worked as electronic tech. (retired).
GT125R - sold. New (used): 2012-GT250R-efi (sold)+ 2017-GV-125C (sold) - got my old 2018-GT-125R back... 🙂
Regulator is most probably fubar…-get the uprated one…
Old and grumpy,(?), have fairly wide engine & tuning experience, "restoring/resto-mod" on cars & mc, worked as electronic tech. (retired).
GT125R - sold. New (used): 2012-GT250R-efi (sold)+ 2017-GV-125C (sold) - got my old 2018-GT-125R back... 🙂
Side-stand switch seems to be a common trouble-maker. And I often read advice to cut wires and permanently solder the ends together.
But, having read stories about accidents…where side-stand was forgotten…I just wanted to make a reminder-light.
This circuit on picture should work…if switch works… and will not interfere with ignition-system…
Old and grumpy,(?), have fairly wide engine & tuning experience, "restoring/resto-mod" on cars & mc, worked as electronic tech. (retired).
GT125R - sold. New (used): 2012-GT250R-efi (sold)+ 2017-GV-125C (sold) - got my old 2018-GT-125R back... 🙂
CDi pin-out, as far as my wiring-diagram compares to my bike…:
Old and grumpy,(?), have fairly wide engine & tuning experience, "restoring/resto-mod" on cars & mc, worked as electronic tech. (retired).
GT125R - sold. New (used): 2012-GT250R-efi (sold)+ 2017-GV-125C (sold) - got my old 2018-GT-125R back... 🙂
Chinese Hyosung:
http://www.motoepc.com.ua/forum/viewtopic.php?f=19&t=151Old and grumpy,(?), have fairly wide engine & tuning experience, "restoring/resto-mod" on cars & mc, worked as electronic tech. (retired).
GT125R - sold. New (used): 2012-GT250R-efi (sold)+ 2017-GV-125C (sold) - got my old 2018-GT-125R back... 🙂
The second wire goes to gnd/chassi.
Old and grumpy,(?), have fairly wide engine & tuning experience, "restoring/resto-mod" on cars & mc, worked as electronic tech. (retired).
GT125R - sold. New (used): 2012-GT250R-efi (sold)+ 2017-GV-125C (sold) - got my old 2018-GT-125R back... 🙂
What is missing from the manual…the correct pin-out for CDi, with correct wiring-colors…
Just quick-tested my wiring, and found that the BROWN wire had 0-ohm to gnd/chassi with support up, infinite, with support down. Clutch-switch also had an impact.
Could not get a reasonable reading thru pickup, shows several M-ohm ???(Green to Blue), (Green to gnd ~100 ohm…) ?
(Runs OK) !
Arne K
2017 GT-R-125Old and grumpy,(?), have fairly wide engine & tuning experience, "restoring/resto-mod" on cars & mc, worked as electronic tech. (retired).
GT125R - sold. New (used): 2012-GT250R-efi (sold)+ 2017-GV-125C (sold) - got my old 2018-GT-125R back... 🙂
Not to forget; MicroSquirt or similar “diy-efi”-systems…
Old and grumpy,(?), have fairly wide engine & tuning experience, "restoring/resto-mod" on cars & mc, worked as electronic tech. (retired).
GT125R - sold. New (used): 2012-GT250R-efi (sold)+ 2017-GV-125C (sold) - got my old 2018-GT-125R back... 🙂
A 10W fork-oil will also work for most, I use 15W to make the damping slightly harder/slower, (barely notable in my GTR) but it may differ between oil-makes.
(I use MILLERS oils, -when the best is almost good enough…)
Old and grumpy,(?), have fairly wide engine & tuning experience, "restoring/resto-mod" on cars & mc, worked as electronic tech. (retired).
GT125R - sold. New (used): 2012-GT250R-efi (sold)+ 2017-GV-125C (sold) - got my old 2018-GT-125R back... 🙂
