EBC Large Round Main Jets - #85 4/PK Sj85-4

EBC Large Round main jets in size #85, sold in a four-pack for Mikuni HSR series carburetors. Main jets meter fuel flow during cruise and part-throttle riding, making them essential for jetting and performance tuning.

Features

• Size #85 calibration
• Large round body style
• Four jets per pack
• Direct fit for Mikuni HSR carburetors

Specifications

• Brand: EBC
• Manufacturer Part #: SJ85-4
• UPC: 847943008591
• Quantity: 4 per pack
• Length: 2.95 in
• Width: 1.8 in
• Height: 0.45 in
• Weight: 0.4223 lbs
• Country of Origin: United Kingdom

Fitment

Fits Mikuni HSR series carburetors.

Frequently Asked Questions

What do main jets control?

Main jets meter fuel flow at cruise and part-throttle conditions. Upsizing or downsizing adjusts richness across most of the throttle range.

How many jets are in this pack?

Four jets per pack — enough to tune one carb with spares or jet two carbs.

Will these fit a Dellorto or Amal carb?

No — these are sized specifically for Mikuni HSR series carburetors. Different carburetor brands use different jet geometries.

What size range does EBC offer?

EBC makes jets in many sizes. Check the EBC jetting chart for your engine displacement and riding conditions to select the correct size.