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Crank Shop 56mm Oval Slide Carburetor New 5/2018 With Raised Needle Jet

Crank Shop 56mm Oval Slide Carburetor New 5/2018 With Raised Needle Jet

$472.25
Crank Shop 56mm Oval Slide Carburetor New 5/2018 With Raised Needle Jet. Carb...
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670 MXZ, SUMMIT, FORMULA SS & MACH I

The 670 engine is Rotax's best engine combination. It responds very well to modifications. Twin pipes net 8-10HP and 3-4 pounds of torque @ 8200-8300 RPM's over the single pipe. We also have a thicker base gasket which raises the port timing to match the port timing of the twin pipe 670 engines from Rotax. Head must be cut to bring compression back down. We have an Improve Stock or Prostock Race Packages that will produce 158HP @ 9000 RPM's. The race packages include race porting the cylinders and base, head machining & inserts, 2 cylinder race pipes. The Improve Stock Package will also include boring of the stock carbs. Neither of these 2 kits are for trail use. The labor to disassemble, clean, and assemble the motor is NOT included in the package price. Any crank work, repairs, or replacement parts would be an extra charge.

  
This product was added to our catalog on Tuesday 24 July, 2007.
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 Description      Model   Price   Enter Quantity 
 670 .010 Over OEM Ski Doo (Rotax) Piston 78.15mm bore. Uses top ring 420815091 and bottom ring 420815021. No longer available. (F1-10)     420887613   $138.50 
 670 Formula SS Trail Pipes Silenced (8-10HP with 3-4 lbs. torque @ 8200-8300 RPM's)     1021320   $725.00 
 670 Head Inserts (each) 15.2:1 (A2-1)     1005300   $123.25 
 670 High Altitude Trail Pipes Silenced (over 6000') (8-10HP with 3-4 lbs. of torque @ 8200-8300 RPM's)     1021345   $725.00 
 670 HO .010 Over OEM Ski Doo (Rotax) Piston 78.15mm bore. Uses top ring 420815091 and bottom ring 420815021. OEM piston 420887616 supercedes to this piston. (F1-10)     420887618   $150.00 
 670 HO Standard Piston & Ring (F1-9)     420887617   $150.00 
 670 Improve Stock Package 158HP @ 9000 RPM's     1031960   $2,395.00 
 670 Mach I Silenced Race Pipes (Specify chassis, year, out the bottom or side, RPM's)     1021330   $865.00 
 670 MXZ 1996-97 Stock Exhaust Single Muffler (no hp gain, only weight savings & more noise) no jetting required.     1027110   $240.50 
 670 MXZ 1998 Stock Exhaust Single Pipe Silencer for center outlet pipe only (no hp gain, only weight savings & more noise) no jetting required.     1021720   $126.00 
 670 MXZ Silenced Race Pipes (Specify chassis, year, out the bottom or side, and RPM's)     1021280   $865.00 
 670 MXZ Trail Pipes Into Crank Shop Muffler (8-10HP with 3-4 lbs torque @ 8200-8300 RPM's)     1021270   $927.50 
 670 MXZ Trail Pipes Silenced (8-10HP with 3-4 lbs. torque @ 8200-8300 RPM's)     1021260   $725.00 
 670 Piston Cir Clip OEM 20mm Sold As Each (420845100) (FC4-4)     420845100   $1.50 
 670 Pro Stock Package 158HP @ 9000 RPM's     1031970   $2,395.00 
 670 Ski Doo (Rotax) .020 Over SPI Piston (1989 - 1999) 78.50 mm bore. (F2-1)     9773P2   $84.95 
 670 Ski Doo (Rotax) .020 Over SPI Piston Ring Only. (FC4-3)     9773P2R   $27.50 
 670 Ski Doo (Rotax) .020 Over Wiseco Piston 78.50 mm bore. Uses 3091LK ring set. Replaces Wiseco piston 2379P2. Not for HO motor. (F2-1)     2379M07850   $148.00 
 670 Ski Doo (Rotax) .040 Over Wiseco Piston 79 mm bore. Uses 3110LK ring set. Replaces Wiseco piston 2379P4. Not for HO motor. (F2-1)     2379M07900   $158.00 
 670 Ski Doo (Rotax) SPI Piston Ring Only. Replaces OEM 420815020 Marshall 9773PSR & 54-773RS (FC4-2)     54-773RS   $27.95 
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