It runs a lot smoother, revs better and can rev higher if your setup allows (the Malossi crank is good for 16,000rpm for instance) the webs in the crank are also filled (full circle crank) which means primary crankcase compression is raised. A tried and tested crank good for 30+bhp is the Malossi although there are plenty of cranks out there now, adding a crank to this setup will give some performance increase but nothing really noticeable. With this setup on top of the previous 2 you can see 25+bhp but this is a fluke in most cases and will need case work to see the power reliably.Īftermarket cranks are basically stronger, better balanced, higher revving, larger by volume version of the stock item with the exception of the big end bearing and different stroke cranks now available.
#2 stroke tuning tips mod#
Malossi MHR or Polini Evo Reedblock (you can mod the stock to the same level as the Malossi or Polini item)
New bearings obviously (although stock fitment bearings are good for 40+bhp and last longer than c4's. Right then, now we get off the kiddie stuff and get busy with big boy cranks, bigger carbs and touch on porting slightly as well as other ways to gain power from the now "beast" like machine you've been creating. This setup on top of the previous will see powers of up to 23bhp with correct setup although this is dependent on mainly the exhaust/match of the stub and setup. This means we set the clutch to bite past the flat power at low revs and drop the roller weight slightly. With the new pipe the engine will produce its power all at once in a certain rev range. Piaggio 180cc variator (Malossi MHR if you're looking to take things further)Īftermarket Exhaust (matched stub goes without saying but is ALWAYS forgotten by amateurs)
#2 stroke tuning tips how to#
Upping the ante a little we can start looking at utilizing the transmission for best performance, also how to shift the power band of the engine to a taller peakier curve, power doesn't always make for a faster bike. It should also last a long time as there's no real strain on the engine. It gives for over 75mph true speeds and will start first time every time. This package is really good for your money, it utilizes the stock pipe so it's pretty much stock looking and will still see a reliable 15+bhp in any fitment. Runner 125 standard exhaust if you have a Typhoon The power listed on this guide is from experience not claims.įor sheer power for money and driveability the best setup would comprise of:ĭell'Orto 25mm Carb (best match for the standard reed window anyway although gains and losses are present with any other carb fitted) First things first, you need a good engine, as in no cracks and if you can't fit them yourself good crank bearings/oil seals (water pump where applicable).
0 kommentar(er)
