[Product Description] The complete engine is a high quality engine that has been assembled by SP Takegawa mechanics with proper control of each part.
Super Head 4V+R (1 cam, 4 valves)
The Superhead 4V+R (1 cam, 4 valves) is a 4-valve engine that increases the valve curtain area and greatly improves the intake and exhaust efficiency.
Valve diameter IN: 21.5mm x 2 / EX: 18.5mm x 2 Valve stem shaft diameter: 4.0mm for both IN and EX
M8 spark plugs are used for optimum valve pinching angle and compact head.
Roller Rocker Arm: Reduces friction loss and smoothly follows the cam profile from low to high speed rotation.
Auto decompression camshaft
Auto-decompression camshaft: Allows the engine to be started with a light kick force, even on large displacement engines. The camshafts included with the complete engine are 88cc/106cc scut: 10/15D 124cc/138cc scut: 15/20D camshafts.
Displacement can be selected from four types: 88cc, 106cc, 124cc and 138cc.
Cylinder & Piston
The 88cc cylinder is an aluminum steel sleeve cylinder, while the 106cc, 124cc, and 138cc scuttles are all aluminum ceramic plated cylinders for durability, airtightness, and heat dissipation.
SP Takegawa cylinders are equipped with a temperature sensor as standard, and cylinder temperature can be measured with SP Takegawa's built-in thermometer or by purchasing a thermometer.
Temperature sensor for 88cc/106cc scut/124cc cylinders: M5 temperature sensor
Cylinder temperature sensor for 138cc scut: C1 adapter (07-04-0031) + M5 temperature sensor
Pistons: Forged pistons are used for the 88cc, and cast pistons are used for the 106cc, 124cc, and 138cc scuttles. The skirt is coated with molybdenum to improve initial acclimation.
The 88cc and 106cc scats use a reinforced crankshaft with a stock stroke of 41.4mm.
The X-shaped connecting rods are machined from forged material. The X-shaped connecting rods are machined from forged material to reduce weight and increase strength, diffuse buckling stress, and greatly improve torsional rigidity.
The surface is shot finished. In addition, the crankshaft journal bearings have a special bearing with a larger inner diameter. This makes it possible to increase the shaft diameter from 20mm to 22mm at the journal section, where the stress on the crankshaft is concentrated, to increase the strength of the shaft.
In addition, the crankshaft pin at the large end has been enlarged from the stock diameter of 23.1 mm to 25.1 mm to increase the strength of the large end.
The 124cc/138cc scat uses a crankshaft with an increased stroke.
In order to accommodate high power engines, the journal bearings of the stroke-up crankshaft have a special bearing with a larger inner diameter.
This makes the shaft diameter of the journal section, where the stress of the crankshaft is concentrated, 22mm to increase strength and durability. In addition, the crankshaft is treated with a special surface treatment to further increase durability.
The secondary kick starter system is equipped with a crankshaft support adapter.
The crankshaft journals are now supported at 3 points instead of 2 points to reduce crankshaft shaking at high output and high rpm, and to increase the durability of the crankshaft. Generator cover for crankshaft support adapter is included.
SP Takegawa's original reinforced crankcase is used.
The SP Takegawa strengthened crankcase is a high quality crankcase specially designed to increase the rigidity and detail of the crankcase.
The oil pump is a crankshaft direct drive type oil pump. Compared to the chain drive type reinforced oil pump, the discharge volume is approximately doubled. The breather pipe has a 6mm inner diameter compared to the stock 4mm inner diameter to reduce the internal pressure of the crankcase for large displacement engines.
The crankcase itself is equipped with an oil jet mechanism that constantly sprays oil directly onto the small end of the connecting rod and the backside of the piston for lubrication and cooling. The transmission bearing is equipped with a special bearing hold plate to hold the big torque.
Super cam chain tensioner is used.
Super cam chain tensioner maintains proper tension and tracking of the cam chain. The tensioner arm is machined from high strength super durable aluminum material and increased in thickness to increase the strength of the arm body and also to increase the ground contact area to the push rod.
An oil hole is provided in the arm to lubricate the working parts with oil. The surface is coated with hard anodized aluminum.
There are two types of crankcase to choose from: primary kick starter system and secondary kick starter system.
The primary kick starter system allows the engine to be started by disengaging the clutch no matter what gear it is in, and is recommended for racing use where a quick engine start is required when restarting.
In the case of the primary type kick, the engine can be started without putting direct stress on the transmission.
Reinforced clutch (clutch specifications and clutch cover differ depending on the choice of primary or secondary type)
Special clutch kit for primary type kick starter system
Special clutch (wet type) is available only, and the cover is made of magnesium die casting. The magnesium clutch cover surface is painted brown. The reinforced clutch uses 5 discs to eliminate clutch slippage that can occur with high power engines.
The clutch comes with a slipper clutch mechanism. The slipper clutch reduces the shock of sudden engine braking when downshifting at high RPM. The clutch cover is a patented clutch cover that allows the installation of a thermostat.
By installing the optional thermostat unit, overcooling can be prevented. Furthermore, an oil outlet is provided to allow oil to be taken out to the oil cooler. Clutch cable 850mm included.
Special Clutch Kit for Secondary Kick Starter System TYPE-R (WET/DRY)
TYPE-R has been downsized to reduce the rotating mass weight by 12%. 6 friction discs are used to achieve a 6 disc reinforced clutch. This increases clutch capacity by approximately 20% compared to the standard product, making it suitable for high power engines.
R. The crankcase cover is made of die-cast aluminum with a buffed clear paint finish. Both WET and DRY can be operated by either the wire type or the hydraulic type.
The wire type uses a light and smooth rack and pinion system. Clutch cable 850mm included. Hydraulic system includes clutch master cylinder, mesh hose (775mm), and banjo.
WET: Wired clutch cover is forged aluminum with shot finish, hydraulic clutch cover is machined aluminum with clear anodized finish.
DRY (dry): Both wire type and hydraulic type clutch covers are machined aluminum with clear anodized finish.
The clutch cover for DRY (dry type) has additional ventilation holes to further improve the cooling effect. The ventilation holes can be fitted with a set of rubber caps (sold separately) to prevent the noise characteristic of dry type clutches.
TYPE-R allows oil to be taken out to the oil cooler by installing the optional oil cooler unit.
TAF 5-Speed Cross Transmission (S-Touring) This transmission has high durability and excellent operability. The S Touring gear ratio is used for the complete engine.
Super Street Outer Rotor
The Super Street outer rotors are designed to provide stable high power output for both street and racing use, while maintaining the same brightness as stock lights and charging level to compensate for the power consumed while driving.
The SP Takegawa rotor body uses a medium size flywheel that is 50% lighter than the stock rotor, reducing the load on the crankshaft and providing ease of riding and the necessary power generation.
In addition, the position of the pickup has been reviewed to set the optimum ignition timing for various engine displacements, enabling high power characteristics and response that cannot be obtained with the stock rotor.
SP Takegawa's original die-cast aluminum generator cover
The specification of the generator cover differs between the primary type and the secondary type. The primary type uses a separate type drive sprocket cover, and the sprocket can be replaced by removing the sprocket cover only, without removing the generator cover.
The secondary type has a buffed aluminum surface with a clear coating. The sprocket can also be replaced without removing the generator cover. The generator cover for the secondary type has a built-in bearing that is compatible with the crankshaft support adapter.
[Components] Engine Comp. x 1 Hyper C.D.I. x 1 (05-03-0003) Gasket Set x 1 (06111-SH4-T10) Clutch Cable Comp. (850mm) x 1 (00-02-0133) Socket Set Screw (6x15) x 2 (00-00-0162) Silicone Tube (8x13) x 1 (00-01-1044) Knob Screw (M3x28) x 1 (00-01-0254) Snap Ring (6mm) x 4 (00-01-0255) Spark Plug #8 x 1 (NGK-ER8EH) Braided Hose Set (8x13.5x1000) x 1 (00-07-0070) Hose Clamp (Φ13.1mm) x 2 (00-00-0087) Plug Socket (13mm) x 1 (00-00-0247) Anti-seize Paste (5g) x 1 (08-02-0042)
*If there's no link to the repair parts, please quote us through Non-listed Item quotation
[Documents] Manual: Japanese
[Online Catalog] SP Takegawa's Online Catalog (Japanese)・Webike Thailand is an official distributor of SP Takegawa in Thailand. ・Products purchased from Webike Thailand are covered by the product warranty specified by SP Takegawa.
* This item can not be cancelled, returned nor exchange after placing an order.
* The image is only for reference. The image shown may differ from the actual product.
Caution
*Because this product is basically for competition use only, you may be asked to fill in a pledge form when you purchase it.Please note that this is not a guarantee. *Always use high-octane gasoline as fuel.(Knocking or other problems may result in an accident.) *When the 124cc / 138cc complete engine is installed, the length of the engine becomes longer and the engine interferes with the tire with the stock front fork, stock top bridge and steering stem, so the front end needs to be changed.For Monkey and Gorilla, it is recommended to install SP Takegawa's front fork kit at the same time. *Need to change to big bore carburetor.Super Head 4V+R Cylinder Head and Big Bore Carburetor Kit are required to maximize the performance of the engine. SP Takegawa carburetor kit includes carburetor, special manifold (insulator), high throttle set, air filter (VM26 / PE28 only) and fuel cock (VM26 only).You can choose from 4 types of carburetors, MIKUNI VM26, KEIHIN PE28, KEIHIN FCR downdraft and MIKUNI TMR downdraft. *It is necessary to change to SP Takegawa's exhaust which has excellent exhaust efficiency.In order to get the best performance out of the engine, it is necessary to change to an exhaust with excellent exhaust efficiency. *No engine oil is included.The engine oil must be purchased separately and filled by the customer. *The kick starter arm is not included.We recommend you to use SP Takegawa steel forged kick starter arm (chrome plated) 02-08-0052, because other company's kick starter arm may interfere with the clutch cover. *The recommended big bore carburetor and exhaust are required to get the best performance out of the complete engine. *Because the overall length of the engine is different between the stock engine and the complete engine, it is necessary to change from the stock chassis to the chassis recommended by SP Takegawa. *Primary type kick starter system is a two-point crankshaft. *This product cannot be installed on Monkey (injection vehicle). *The image includes some other types. *Depending on the lot, the product may be delivered with the old price and label with the old JAN code before the price change. * Please note in advance that cancellation and/or return of this product cannot be accepted once the order has been placed.
