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Cylinder -IMOLA 186 cc- Lambretta

8000003
Cylinder -IMOLA 186 cc- Lambretta
Cylinder -IMOLA 186 cc- Lambretta
Cylinder -IMOLA 186 cc- Lambretta
Cylinder -IMOLA 186 cc- Lambretta
Cylinder -IMOLA 186 cc- Lambretta

Description


Bore 64 mm, stroke 58 mm, Nikasil coated aluminum cylinder.

Timing: Exhaust 178°, overflow 125°, intake - diaphragm controlled, advance 26.5°.

The layout from the Imola was based heavily on the TS1, so the diaphragm intake provides good low and mid range filling.

The Imolas offer enough meat at the exhaust and overflow sealing surfaces for further tuning measures is.

With a high revving exhaust like the KRP2 or KRP4 speeds over 120 km/h are possible.

Who likes it a little more comfortable, can change the characteristics of the cylinder by the selection of the exhaust. With the bgm Big Box or Big Box Sport, the whole thing goes more in the direction of touring, which means that longer gear ratios can also be driven. The whole thing then takes place at a moderate speed level.

Conclusion: Baby TS1, BUT it should definitely be measured the timing and you should be prepared for the fact that these may need to be adjusted. In addition, the combustion chamber volume of the head must be determined and possibly increased, so that one can build a reliable and touring-suitable engine here. Especially in the combination with 60 mm instead of 58 mm stroke, the compression can increase so much that it comes to a capital engine damage.

On the diagram you can see a nice tape of the Imola engine with 60 mm bgm crankshaft, 30 mm bgm PWK carburetor and the Jl3 exhaust. The reference run (red) is an Indian Stage4 engine (Sh22, Indian Big Bore exhaust).
Do you have questions about the diagram or the cylinder: lambretta@scooter-center.comAI-translation

 
This item is currently not available.
€569.00 *

incl. VAT plus shipping costs

The item is ordered and will be in stock soon

Estimated delivery date: 14/04/2024

P For this item you get fidelity point/s
General
performance class: racing, sport
Gudgeon pins
diameter: 16 mm
Spark plugs
thread type: M14x1,25
thread spark plug: long
heat rating NGK: B9ES
Cylinders
displacement: 186 cm³
bore: 64 mm
engine type: 2-stroke
type of cooling: air cooled
material: aluminium
material piston cylinder surface: Ceramic
cylinder head inclusive:
cylinder gasket set inclusive:
number of transfers (incl.boost ports): 6
number of boost ports: 2
shape exhaust port: single port (oval)
exhaust mounting: flange
flange type: 2 studs
exhaust bolt pitch: 60 mm
thread exhaust studs: M7
Crankshafts
stroke: 58 mm
Pistons
number of piston rings: 2
production method piston: cast
Piston rings
piston ring type: common ring
thickness rings: 1,0mm
Circlips
circlip type: C-type
wire size of circlip: 1,0mm
Cylinder heads
cylinder head type: one piece
Please inform me once the product is available again.
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