90cc YX 4 speed race engine MINI X RACER

90cc YX 4 speed race engine MINI X RACER
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£658.80 £549.00 ExVAT


Product Code: 3077

90cc YX 4 speed race engine MINI X RACER

Gears 1-N-2-3-4

Here is a high spec race engine.

Red tag gas flowed head.

E22 race cam 1mm extra lift

Dialled in valve timing

EBC clutch

Full race ignition VMR118 light weight flywheel, coil , wiring, Bolt adjustable CDI.

Taper carb manifold  22mm to 26mm

Molkt 22mm slide 26mm carb and adjustable stack

Dynoed in at 30% over stock

 

Service info

  • Engine oil:            10/40 Mineral Oil
  • Capacity approx: 725mm
  • Valve clearance: 0.10mm inlet 0.12mm exhaust


Specifications:

  • Model:                                                        147 FMF
  • Type: Single cylinder, horizontal, 4 stoke, air cooling, top cam
  • Size (L*W*H) mm* mm* mm:                  477*395*280
  • Net weight, kg:                                          22.5               
  • max. power (kw/r/min):                             3.4(1±5%)) @ (8000 (1±1.5%)
  • max. torque (N.m/r/min):                           4.5(1±5%)) @ (6000 (1±1.5%)
  • minimum idling RPM:                               1500(1±10%)
  • Minimum fuel consumption g/kW.h:        ≤367  
  • Engine Oil consumption, g/kW.h:            ≤8
  • Bore, mm:                                                  47mm
  • Stroke, mm:                                               49mm
  • Compression ratio:                                  8.8:1
  • Ignition type:                                             CDI
  • Lubricating system:                                  Press splash
  • Transmission type:                                   Constant engage, 2 grade, 4 gears
  • Clutch type:                                               Semi auto wet multi-plate
  • Primary reduction ratio:                           1:3.722

 

Gear Ratios:

 

  • Gear 1:     1 = 1:3.273
  • Gear 2:     2 = 1:1.938
  • Gear 3:     3 = 1:1.350
  • Gear 4:     4 = 1:1.043
Product Code 3077
Condition New
Weight 30Kg

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