Tehnički kutak > Tuning skutera
dal mi treba veci kurburator?
stardust:
uskoro cu imat 82cc masinu pa me zanima dal mi je 18mm keihn kurburator dosta?
dobit cu i sportsku prirubnicu pa me zanima dal mi ona ista znaci ako imam isti kurburator?
il bi trebao ic na nesto jace?
sto uopce dobijem sa vecim kurburatorom?
da li je dosta samo povecati dizne na postojecem kurburatoru pa da dobijem isti ucinak?
poz
Drnda:
Ja mislim da ce ti 18mm biti sasvim dovoljno a da samo povecas diznu...
stardust:
pa to me i zanima...
dal mi je dosta povecat diznu na ovom karbu pa da dobijem isti ucinak kao sa vecim karbom?
Drnda:
Po meni drugi karb ti je samo nepotrebni trosak, koja je sada dizna na njemu??
Koliko ti ide sa ti 72ccm kitom(jesi ga stavlja)
Agil:
--- Citat: ---50mph success - what worked and what didn't
« Thread Started on Sept 14, 2007, 10:22am »
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I've been busy with various modifications of my scooter. Here's what I have learned over the last couple of months:
1) There seem to be a correlation between the size of the head valves and the optimum sizes of the intake/exhaust.
2) The stock 19mm carb and the stock 20mm exhaust are well matched for the stock head with 17mm intake/exhaust valves - regardless of the engine size (50cc,72cc,82cc)
3) The stock 150cc 24mm carb is a good match for the aftermarket head that has 21mm intake/17mm exhaust valves.
Here are various combinations that worked well for me:
engine kit head carb intake top speed
50cc stock 19mm,85main,35pilot stock restricted 34mph
50cc stock 19mm,88main,35pilot stock derestricted or free flow (no difference) 37mph
72cc stock 19mm,88main,38pilot stock derestricted or free flow (no difference) 42mph
82cc large 19mm,92main,38pilot stock derestricted or free flow (no difference) 47mph
82cc large 24mm,95main,38pilot free flow 51mph
Things that did not work well for me:
24mm carb on 72cc kit and stock head - most likely due to the too small intake valve
after market exhaust on any kit - most likely due to the too small exhaust valve on both stock and larger heads
derestricted stock intake on 24mm carb - the 24mm carb definitively likes the free flow filter better.
MRP 28mm intake manifold - too large even for the larger head/carb combo
Final parts list and where I got them from:
82cc kit with larger head and cam $260 with shipping - ebay store Autotech355 Performance Parts
24mm GY6 carb $50 with shipping - ebay store gy6partsoutlet
24mm parts to fit the carb: GY6 Stock Type Intake Manifold, GY6 Intake Manifold Gasket, GY6 Intake Manifold Insulator, MRP Low Restriction Air Filter 48mm, Replacement Throttle Cable - $60 including shipping from Oregon Vintage
95main, 38pilot jets - $20 (less if you use aftermarket versions) including shipping from motorcyclecarbs.com
So for a grand total of $390 50mph is achievable. Learn from my mistakes don't buy anything else that will not work. I did recuperate some money back by re-selling the 72cc kit and the aftermarket exhaust, mrp intake etc, but I still lost money on those. Also I live near sea level, so those jets work well for me. I can't guarantee they will work for you, but those are a good starting point. The stock 24mm (150cc OEM) carb comes with 107main and 35pilot, neither worked for me BTW. Also I had to lower the needle (to deliver less fuel) by one notch.
--- Kraj citata ---
Evo jednog mišljenja......50 milja na sat....a sportski variator i bijeli feder ni ne spominje....
Naime, na Revolution70 tvrde da se max.brzina postiže s kitom+KOSO variatorom ( Malossi 2000, NCY )+ bijeli feder kvačila
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