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Jets

(96 Produkte)
Carburetors Intake Manifolds Reed Valves and Petals Carburetor Accessories Jets Fuel System Air filter Injection System
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Jet type
Main Pilot Powerjet Choke
Carburetor make
Arreche / Amal Bing BVF Dell'Orto 5mm Dell'Orto 6mm Dell'Orto SI Dell'Orto VHST Gurtner/Weber Keihin / CVK M4 Keihin / CVK M5 Mikuni Molkt PHBG Polini CP PWK
Brand
Swiing Arreche Dell'Orto Gurtner S.A Malossi Mikuni MotoForce MotoForce Racing Naraku Polini Stage6 Stage6 R/T Standard Parts Swiing Weber YCF
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Dell'Orto
Main Jet Dell'Orto carburetor 6mm
Artikel-Nr.: 52290_A-LHD6

Main Jet Dell'Orto carburetor 6mm

2,00 €
In stock
3,00 €
-33% Discount
Arreche
Main Jet Arreche/Amal
Artikel-Nr.: 50500_A-LHDA
1

Main Jet Arreche/Amal

0,60 €
In stock
1,70 €
-65% Discount
Dell'Orto
Main Jet Dell'Orto carburetor 5mm
Artikel-Nr.: 52300_A-LHD5

Main Jet Dell'Orto carburetor 5mm

1,90 €
In stock
2,50 €
-24% Discount
Standard Parts
Carburetor Jet Kit (x10) CVK / Keihin 5mm 75 - 98 4-stroke
Artikel-Nr.: CGN483338

Carburetor Jet Kit (x10) CVK / Keihin 5mm 75 - 98 4-stroke

12,50 €
In stock
Naraku
Main Jet Set Naraku M4 110-130 - 11 pcs.
Artikel-Nr.: NK200.09

Main Jet Set Naraku M4 110-130 - 11 pcs.

18,00 €
In stock
Mikuni
Pilot Jet Mikuni
Artikel-Nr.: MK-GR/SIZE

Pilot Jet Mikuni

8,90 €
In stock
Mikuni
Main Jet Mikuni
Artikel-Nr.: MK-GP/SIZE

Main Jet Mikuni

9,60 €
In stock
Standard Parts
Main Jet long 33mm Bing
Artikel-Nr.: BING-LONG-SIZE

Main Jet long 33mm Bing

3,60 €
In stock
7,30 €
-51% Discount
Standard Parts
Main Jet M4 Bing
Artikel-Nr.: BING-M4-SIZE

Main Jet M4 Bing

0,70 €
In stock
2,10 €
-67% Discount
Gurtner S.A
Jet Gurtner 66 Peugeot d.12mm
Artikel-Nr.: CGN506921

Jet Gurtner 66 Peugeot d.12mm

6,30 €
In stock
Gurtner S.A
Jet Gurtner 64 Peugeot d.12mm
Artikel-Nr.: CGN506920

Jet Gurtner 64 Peugeot d.12mm

5,90 €
In stock
Gurtner S.A
Jet Gurtner 62 Peugeot d.12mm
Artikel-Nr.: CGN506919

Jet Gurtner 62 Peugeot d.12mm

5,90 €
In stock
Stage6 R/T
Choke Jet Stage6 R/T Dell'Orto VHST (24 / 26 / 28mm)
Artikel-Nr.: S6-30RT-ET004

Choke Jet Stage6 R/T Dell'Orto VHST (24 / 26 / 28mm)

6,80 €
In stock soon
RRP
7,40 €
-8% Discount
Dell'Orto
Starter Jet Dellorto PHBG
Artikel-Nr.: L-DEL09501_STARTERJET

Starter Jet Dellorto PHBG

4,90 €
In stock soon
Neu
Gurtner S.A
Jet 56 Gurtner d.12 mm Peugeot 103
Artikel-Nr.: CGN512319

Jet 56 Gurtner d.12 mm Peugeot 103

6,00 €
In stock soon
Mikuni
Jet Kit for Mikuni TM24
Artikel-Nr.: T9909090

Jet Kit for Mikuni TM24

39,50 €
In stock soon
Malossi
Jet / Reeds / Needle Kit Malossi Peugeot Fox / Honda Wallaroo
Artikel-Nr.: M202933B

Jet / Reeds / Needle Kit Malossi Peugeot Fox / Honda Wallaroo

20,50 €
Currently not in stock
Standard Parts
Main Jet Carburetor Mikuni / Molkt
Artikel-Nr.: MB_MOLKTJET/SIZE

Main Jet Carburetor Mikuni / Molkt

3,80 €
Currently not in stock
4,30 €
-12% Discount
Polini
Pilot Jet Set Polini CP 32-40
Artikel-Nr.: P343.0301

Pilot Jet Set Polini CP 32-40

16,00 €
Currently not in stock
RRP
17,00 €
-6% Discount
Swiing
Main Jet Set Swiing M3.5 (64-74) Bing SRE / SRA / SRC / SRF
Artikel-Nr.: MOF-55586

Main Jet Set Swiing M3.5 (64-74) Bing SRE / SRA / SRC / SRF

20,00 €
Currently not in stock
RRP
21,90 €
-9% Discount
Standard Parts
Main Jet Set 7-part M5 85-115 BVF carburetor Simson S51
Artikel-Nr.: MOF-49165

Main Jet Set 7-part M5 85-115 BVF carburetor Simson S51

8,90 €
Currently not in stock
Standard Parts
Main Jet Set 7-part M5 72-80 BVF carburetor Simson
Artikel-Nr.: MOF-49164

Main Jet Set 7-part M5 72-80 BVF carburetor Simson

9,30 €
Currently not in stock
Polini
Jet Set 5 idle jets Polini Dell'Orto SI 55-58-60-62-65/160
Artikel-Nr.: P373.0002

Jet Set 5 idle jets Polini Dell'Orto SI 55-58-60-62-65/160

29,50 €
Currently not in stock
RRP
33,00 €
-11% Discount
Polini
Main Jet Set Polini Mikuni 380 - 470
Artikel-Nr.: P380.0006

Main Jet Set Polini Mikuni 380 - 470

35,00 €
Currently not in stock
Polini
Air Correction Jet 1,00 Polini CP carb
Artikel-Nr.: P343.0753

Air Correction Jet 1,00 Polini CP carb

3,10 €
Currently not in stock
RRP
3,40 €
-9% Discount
Polini
Air Correction Jet 0,80 Polini CP carb
Artikel-Nr.: P343.0754

Air Correction Jet 0,80 Polini CP carb

3,10 €
Currently not in stock
RRP
3,40 €
-9% Discount
Gurtner S.A
Jet Gurtner 52 AR2 705 / 707 MBK
Artikel-Nr.: CGN506918

Jet Gurtner 52 AR2 705 / 707 MBK

6,00 €
Currently not in stock
Standard Parts
Jet Solex d=27
Artikel-Nr.: CGN482192

Jet Solex d=27

6,60 €
Currently not in stock
Standard Parts
Main Jet M5 BVF carburetor Simson
Artikel-Nr.: MOF-49163/SIZE

Main Jet M5 BVF carburetor Simson

1,40 €
Currently not in stock
Standard Parts
Idle Jet long BVF 16N1 carburetor Simson
Artikel-Nr.: MOF-49162/SIZE

Idle Jet long BVF 16N1 carburetor Simson

1,20 €
Currently not in stock
Standard Parts
Screw Plug idle jet 16N3 carburetor Simson
Artikel-Nr.: MOF-41306

Screw Plug idle jet 16N3 carburetor Simson

0,70 €
Currently not in stock
Swiing
Jet Kit carburetor swiing 70-80 Bing
Artikel-Nr.: MOF-43842

Jet Kit carburetor swiing 70-80 Bing

40,00 €
Currently not in stock
42,00 €
-5% Discount
Swiing
Jet Kit carburetor swiing 58-68 Bing
Artikel-Nr.: MOF-43841

Jet Kit carburetor swiing 58-68 Bing

34,00 €
Currently not in stock
42,00 €
-19% Discount
Swiing
Jet Kit carburetor swiing 46-56 Bing
Artikel-Nr.: MOF-43840

Jet Kit carburetor swiing 46-56 Bing

38,00 €
Currently not in stock
42,00 €
-10% Discount
YCF
Main Jet 62 Pit Bike YCF50A
Artikel-Nr.: MBGICLEUR50.62

Main Jet 62 Pit Bike YCF50A

7,60 €
Currently not in stock
YCF
Main Jet 50 Pit Bike YCF50A
Artikel-Nr.: MBGICLEUR50.02

Main Jet 50 Pit Bike YCF50A

7,60 €
Currently not in stock
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Carburetor Jets: Essential for Optimal Carburetor Tuning

An engine is powerful and reliable only when it maintains a perfect air-fuel ratio across all RPM ranges. To achieve this, you must find the ideal carburetor setting, primarily by adjusting the jets.

Functions of the Jets

Jets regulate the amount of fuel delivered into the carburetor to prepare the mixture with air.

The main jet primarily influences high RPMs when the throttle slide is fully open (wide open throttle). It is the most important jet for engine reliability.

The pilot jet / idle jet, on the other hand, affects the lower RPM range and throttle response at small slide openings.

On PWK-type carburetors, there is also a power jet. This provides a bit more fuel at very high RPMs.

finding The Right Jet

The more an engine is tuned, the sharper its power characteristics become and the more sensitive it is to carburetor settings. Therefore, you must adapt the jet size to the setup and the specific conditions: ambient temperature, altitude, and sometimes even humidity.

To find the appropriate jet after an engine modification, you can use the following indicators:

  • The engine must run cleanly: immediate revving, no stuttering or bogging in the low end, and free revving into high RPMs.
  • The spark plug reading: After a test run under full load (at least 15-20 seconds at wide open throttle), you must remove the spark plug and check the color of the electrode. Ideally, it should be tan / brown.

Signs of a jet that is too large (mixture too rich):

  • The engine struggles to reach high RPMs and stutters at the top end.
  • The spark plug is too dark, black, and oily.

Signs of a jet that is too small (mixture too lean):

  • The engine has misfires in the lower RPM range, then revs up but feels restricted at full throttle.
  • The spark plug is too light, almost white, and very dry.

Pro Tips:

To find the correct jet, you should perform several tests and increase or decrease the jet sizes step by step. A bit of patience is required here. Additionally, ensure absolute cleanliness, as any dirt in the carburetor can lead to a breakdown.

Once you have found the right jets and the carburetor is well-tuned, you should keep an eye on the altitude and ambient temperature. If your engine runs perfectly at 300 meters altitude at 15 degrees, it might not perform the same at 700 meters at 0 degrees or at 10 meters at 35 degrees.

The setting must then be adjusted as follows:

  • Decrease main jet size → when altitude increases or temperature rises.
  • Increase main jet size → when altitude decreases or temperature drops.

Note: Motocross bikes are often supplied with a user manual containing tables that specify which jets to use under which conditions.

Jets in Our Shop

Although we carry a wide variety of individual jet types for all common carburetors on the market (Dell'Orto, Gurtner, Mikuni, Keihin, etc.), we recommend purchasing a jet set with various sizes. This allows you to fine-tune the carburetor setting perfectly step by step. We offer sets from well-known brands such as Polini, MotoForce, or Stage6 with many different sizes.

Naturally, we strive to offer these jets at the best price with the fastest possible delivery times.

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