how to bore up mio 150 cc

how to bore up mio 150 cc

Other It is interesting to design a racing engine scooter or new scooter racing scooter Kan wrote dipentas two last Sunday in Small Sentul. Even the good news, there are 4 series next year again. For it as it feels necessary preparations in order to fit the theory that there is a guide and not one step.
Most interesting to observe the 150 cc class. Yamaha Mio should use a 57 mm piston. Moderate stroke is 57.9 mm standard Mio. How to determine the size of the valve and the size of the carburetor is used?
For starters must determine how the location of power in rpm. So, instead of determining the first valve.
Peak power at 13,000 rpm to about 110 cc class. Average other teams play at 12,000 rpm. Let set at 12,000 rpm easy, yes, be advised that the automatic transmission in skubek no limits. Also good is the character of power in gasingan below.
Also must know first gas speed (GS) in a ported hole. According to reference from overseas tuner 80 meters / sec. For Ibn racing motorcycle, which is 100-105 meters / sec. This number determines the fuel-air mixture homogeneity. If too big, or less than 80 m / sec will not homogeneous. Easier to 100 m / sec, yes.
Next look for the size of the diameter of the inlet port. According to the well-known mechanical Pakde called it, can be most easily measured by the diameter of the inlet hole in the cylinder head with the intake manifold meet. To determine the magnitude can see the formula:
Diameter Piston2 Gas Speed ​​= -------------------------- x Piston Speed Diameter Inlet Port2
Piston Speed ​​= (2 x stroke x rpm) / 60. Yamaha Mio has a stroke of 57.9 mm (0.0579 meters). In gasingan 12,000 rpm, the Piston Speed ​​= (2 x 0.0579 x 12,000) / 60 = 23.16 feet / sec. Well, from here can calculate the diameter inletnya. Namely:
Piston diameter ² Diameter Inlet Port = √ -------------------------- x Piston Speed Gas speed
0,057 sq Diameter Inlet Port ----------------- x = √ 23.16 100
Diameter Inlet Port = 0.0274 meters = 27.4 m
Well, from there discovered that the diameter of the inlet port is 27.4. From here it is rather complicated if you know the size of the valve diemeter ideal. "It should be through a formula that is long and need long research. Mainly know first diagram working back and headache, "said the scholar Ibn electro once the engine.
Diameter of the valve depends on the location of the peak power that dimau For that Ibn would love the lightweight formula. He said that the diameter of the inlet port for small cc motor size, ie 0.85 x the diameter of the suction valve. Then the suction valve diameter = Diameter Inlet Port / 0.85 = 27.4 / 0.85 = 32 mm.
Smaller exhaust valve. The amount ranges from 0.77 up to 0.80 x the diameter of the suction valve. If taken the greatest is 0.80 x 32 = 25.6 mm. Well, this is considered a very big if the suction valve 32 mm and 26.6 mm exhaust. It feels like a very hard mounted on the cylinder head that uses only diaemeter 57 mm pistons.
But this formula if the peak power at 12,000 rpm wanted to be. For automatic size should be lower again. Kan automatic transmission (CVT) took power in the run-down so ferociously fast racing.
If the power play at 11,000 rpm gasingan suction valve 30.6 mm and 24.5 mm exhaust valves. If you want even lower, for example at 10,000 rpm, the suction valve and exhaust 29.5 23.6 or 24 mm. Thus, the magnitude of the diameter of the valve depends on the location of the peak power that dimau.
Venturi carburetor Determining the carburetor venturi can also be based on the comparison. As an example taken from a guide book brand superflow flowbench SF-110/120. The comparison is 0.85 x diameter of the valve.
For example as above if the suction valve diameter 32 mm. Then the carburetor venturi 32 x 0.85 = 27 mm. But deemed hard to find size 27 mm carburetor. If you want more easily, select wrote the 28 mm. Keihin PWK 28 such example.
The article above, written how to determine the size of the diameter of the hole in the intake or suction scooter. For example, in the Yamaha Mio. Surely the first location to be determined at peak power rpm how the dimau.
Valve stem. Select the same with minor friction has let Mio
Location of peak power or peak power dimau will determine the amount of suction hole diameters. Election will also determine the size of the diameter of the umbrella valve and carburetor are applied.
Apparently it is quite interesting how the doyang speeding skubeker attention. Such Nugroho from Surabaya. "If you already know the size of the umbrella valve is used, roughly valve wear a pair of what and how," asked the Yamaha Nouvo users via SMS.
For Yamaha Mio which would fall in the class 150 cc 57 mm piston wear, could use a valve several levels. "Depending on the location of the peak power rpm how," said Ibn Sambodo, 4-stroke guru who last week gave the formula.
(1) Sonic Valve For example, adjusting the valves are available in the market. For example, the valve Honda Sonic in 28 mm and 24 mm ex. Herganya range from Rp 150 thousand to Rp 200 thousand. But risks must be cut because the valve stem extension. If it does not bother grimy wrote TK brand, TDR or special Daytona for Mio.
Valve size 28/24 is widely used skubeker. If using the formula given Ibn last week, the character power or peak power at 9,000 rpm range. However, use of this valve should shift the angular position of the valve in the cylinder head.
Mio standard valve in the vertical tilt of 31.5 degrees and 35.5 degrees exhaust valve. If using Sonic valve, should be made more gentle slope so as not to collide with each other.
From calculations using sines and cosines formula, obtained suction valve must be constrained slope of 29.1 degrees."33.5 degrees with the exhaust valve by calculating the distance between the valve 4 mm.
Distance of 3-4 mm between the valve so good is the engine cool
(2) Valves EE 31/25, 5 mm The second option, if the engine power would be in the range of 11,000 rpm. "It could use the EE logo valve diameter suction umbrella valve 31 and exhaust 25.5 mm.
Do not forget the distance between the valve setup 4mm suction valve and tilt angle of 28 degrees and 33 degrees exhaust. Character valve EE antijeber alias will not expand even use per harsh and high lift back.
The valve stem is longer. The consequence should play pieces that have the same size as Mio. However, the advantages of small diameter valve stem has the same alias with Yamaha Mio. So friction lighter.
Despite having to play cut the stems, but the price is quite mild. He does the JP Racing sold with a tag of $ 150 thousand.
(3) Valves GL Pro Platinum Another option could try GL-Pro valve platinum aka the old type. The diameter of the umbrella valve in 31.5 mm and 26 mm ex. Certainly suitable for the pursuit of power at 11,500 rpm gasingan. The price is quite friendly. Like artificial Indoparts which sold the range of USD 70 thousand.
For installation of this valve toggle valve specialist Chandra's love leaks. "The slope of the suction valve mounted 27.5 degrees, being a slope of 32.5 degrees exhaust valves, valve condition is the distance between 5 mm to be safe," said Chandra.
However, using the GL-Pro valve cheap despite of no consequence. Stems should be cut because of the extension. Also pretty big diameter valve stem, which is 5.5 mm. Compare Mio original has only 5 mm.
Valve Spacing The distance between the valve was hanging from the back. Especially overlap and lift. "But do not be too much to fix the distance between the intake and exhaust valves. Hell good is 3 to 4 mm.
From the analysis of Jesi, if the distance between the valve 5 mm or more will result in a heat engine. Usually neck burning exhaust. Indicates high engine temperatures.









Stroke-up Yamaha Mio

Category: Other To get a larger cylinder capacity, not only reached by way of bore up. Now it could be tricked with a stroke-ups aka aka piston piston extending step. Still need a special trick that achieved a very long stroke maximum alias.
The problem, up abis constrained piston stroke used and the gap pen in crutch-as only a little. "So overcome by widening the diameter of the pendulum crutch-axles and replace the piston handlebars.
To extend the pistons move somewhat difficult. Mechanics must take into account the selection of mature handlebars piston motors what to wear. Moreover, this change depends on the crutch-as pens and pen piston replacement.
The ratio gearbox settings can be made heavier
The stroke length of the pendulum away from the welded twist effects
More big primary pulley of the secondary, to compensate for the increase in torque
Not only that. The rest of the gap between the crankcase with an outer diameter of the pendulum crutch-as should not go unnoticed. Moreover, replacement handlebars piston on crutch-as influenced by the diameter of the pendulum is widened by means of welded around it.
In essence, a mechanical turner should be smart looking that good at raising diameter pendulum crutch-as, lathe also ngebalance. Because if not equally skilled, crutch-as-prone melitir.
"New smokers looking for an ideal piston handlebars mounted on a crutch-axles and has the same diameter piston pen.Moreover, the enlargement of the diameter of the crutch-as in addition to more powerful can still advance the position of the pen-as crutches.
Now the diameter of crutch-as are already in contact with welding swelled to 108.8 mm from 102.8 mm (standard). The piston is selected Suzuki TS125, RX-Z or Ninja 150. Incidentally been Kunto of TS125, bearing wear bamboo pen to fit the 15 mm.
Using the TS125 piston handlebars profitable. Sebabe smaller crankshaft pin. So that the position of the midpoint of the pin can be shifted further out. The results obtained over a long stroke.
Setting Puli And Griboks That stroke-ups in Mio machine by the component and the reduction in the CVT gearbox, setting these two components must be adjusted. Contrived primary pulley diameter greater than the secondary.
I make this change take the few examples of the reduction gear bike. Big torque when the front gear is larger than the back, which was forced to make repeated pulleys larger primary and secondary pulleys replace small aftermarket products.
Then in the sector gears, just replace the gearbox settings to weight ratio. If you use the original 14/45, now use the ratio of 17/42. 

Want to make Mio Bore-up 150cc?

mio racingBak hot day of rain a year, sueger tenants. That picture fit for speedgoes the scooter. How not, the official racing event is eagerly awaited as a form of existence of the world of motor racing also finally terselengara.
"When the first administration in late December 2008, the class 150 cc Bore-up starters including the widely followed participants. Yamaha Mio scooter so the most down in the classroom, "said Freddy, the organizer of the race.
Tetarik follow? Let us prepare to fight abis Mio created in the classroom. Of course with reference to the rules that have been agreed. For the first preparation concentration in the combustion chamber enlargement yes.
According to some mechanic who hooked the brain-tweaking scooter, there are 2 ways that can be waged in order to have a capacity of 113.7 cc engine that can fit Mio Bore-up regulation of class 150 cc beginner.
"First with the pure Mio raise the standard piston diameter of 50 mm. Enlargement next step by combining the diameter of the piston extending step," said Aldhie, mechanic and owner Bike.rider Shop in Kalimalang, East Jakarta.
Use Piston 57 mm For the first way, the size of the piston that can be used to depose standard Mio, a diameter of 57 mm. By calculation (1/4 x 3.14 x (57) ² x 57.9): 1000, then obtained Mio engine capacity now be 147.67 cc.
Cramming big pistons, liners make standard must also laid off. "Instead of an appropriate liner the same pistons, eg use a Suzuki Thunder 125," said the white man.
In addition to congenital Thunder 125, piston Honda GL Neo Tech & Yamaha V-Ixion could be used to raise cc Mio.Oh yes, baseball is just boringnya that must be replaced when the first mengapliaski way.
Thunder and piston wear special V-Ixion, the adjustment pin diameter should also be done. The reason is congenital Mio 15 mm and pin Thunder V-Ixion also 14 mm.
It takes 5 to 7 working days
Enlarge Piston + Up Stroke The second step, add the diameter of the piston with a combination of cramming a size 54.5. While for added stride length, size 6 mm (maximum rise of stroke according to the rules) is considered the most appropriate.Because when put into the formula, the result of multiplication and division met so 148.99 cc engine capacity.
Than just by increasing the capacity of the machine, working on the 2nd step is longer. "Because there must be a procession sides stroker engines create new pairs," explained Joko, the mechanics of Pakde Motor in Depok, West Java.
This application does not replace the need to wear boring, but the adjustment pin needs to be done on some of the piston can be used. Such default piston Yamaha Jupiter and Kawasaki Kaze 13 mm in diameter. If the pair of pistons Suzuki Shogun or Yamaha Jupiter MX, I need to replace the pin.

BEGINNERS CLASS OF REGULATIONS 150 CC (MTC) AND seeded (MTC5)
1. The maximum volume of the cylinder 150 cc 2. Diameter piston may be changed 3. Stroke may be changed a maximum rise of 6 mm 4. Valve maximum beginners out in 28 and 24. Seeded maximum of 32 mm 5. Machine number and order the appropriate vehicle registration 6. Kem free 7. Carburetor standard, the filter should be removed (beginner) 8. Carburetor maximum of 28 (seeded) 9. PERTAMAX fuel or Pertamax Plus 10. CDI Ignition only be replaced, use the BRT brand 11. Magnets may turner 12. The CVT primary pulley shaft only (home roller, roller, and stand the primary shaft / fan) may be replaced 13. Ratio standard 14. Diameter to factory defaults 15. Material may wear aluminum rims 16. Tire 1 Tire brand is supplied Indo committee 17. Standard exhaust pipe may dibobok or dubah 18. Cover installed according to standards body 19. Components of metal and lights must be removed. Like the stirrup, side standard, standard middle, rear footstep, headlights, turn signal and taillights 20. Skubek the factory standard 16-inch rims still wearing the original suit. Tires will be notified later (not tire imports)

For All Brands Road race scooter once synonymous with one brand racing. Yes always dominated the Yamaha Mio. Like the title Matic Bike Race at the Sentul Circuit, in December last year. Almost all the wear Yamaha team. The proportion is 95% and 5% Yamaha other brands. In fact, the race is open to all brands. 
Could be, though not the first appeared, the first Yamaha Mio scooter directly hit the Indonesian market. "And that is certainly very tasty Mio tampered with. Construction machines are very easy dimodif modifable aka, "said Deden Gantar, scooter riders from Bandung. 
Not only that, the variation and supporting parts for Yamaha Mio very abundant. Whether it's the Thai version and locally. In a matter of economics is also cheaper to modify his Yamaha Mio for the teenage girl. 
The problem is, there was a commotion in the community MOTOR Plus scooter when issuing regulations lattice Bore up 150 cc class. Yamaha Mio users strongly disagree if a stroke or move the piston is allowed to rise. 
That way, teams and riders using Yamaha Mio as selfish. Kan stroke Mio biggest factory standard course, which is 57.9 mm. Simply attach the 57 mm pistons will get 147 cc. That is, a decent down the 150 cc class.Even still thick cylinder liner, piston could use more big again. 
While the teams are using other brands will be harmed. The only way for them to boost stroke. Like the Honda Vario and Beat are only 55 mm. Are no larger than 58 mm piston wear will be obtained 145 cc. If more than that, the cylinder block so thin, it is feared broken or not strong racing. 
If the stroke is still, definitely left an opponent. So Freddy is a former car racer pegokart and it gives the user the opportunity to ride BEAT Vario and stroke. If, pin stroke can be used variations of it rose 3 mm. And so, 58 mm stroke. To be safe use the 57 mm piston cylinder capacity of 148 cc obtained. 
Likewise users or Skywave Suzuki Spin. To pursue the recommended 150 cc also increased stroke. It is only 55.2 mm standard stroke. In order to use the piston stay cheap Suzuki Thunder 125. Not need much modification because the piston pin hole 125 Spin and Thunder are both 14 mm. But only obtained 140 cc cylinder volume. 
To chase 150 cc, so please stroke 58.2 mm. Then use the pistons Thunder 125 57 mm automatic cylinder capacity of 148 cc obtained. Definitely bejaban with Yamaha Mio. So consideration. 
STROKE MAXIMUM RIDE 6 MM 
Of regulation ever written, many are asking. Regarding the sentence is written: Stroke maximum rise of 6 mm.It is obtained from the moving crankshaft pin 3 mm maximum is shifted out. The result is maximum stroke rose only 6 mm right? 
Maximum is shifted 3 mm with consideration of the strength of the crankshaft. Also in consideration of the costs incurred. It does not even need to shift the crankshaft pin is also inexpensive and can be done so as not to damage the crankshaft. I use the pin stroke variations. 
"Pin stroke variation is also good up to 3 mm. Step piston will rise to 6 mm, "explains Jessica League Siswanto alias Throckmorton, Kawahara Racing boss of selling pin stroke for Vario and Mio.