My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

Mikuni J8-6EJ12-55 Jet Needle for Flat Slide Carburetor Jets - TMX38

Manufacturer

Part Number

J8-6EJ12-55
Sale Price

$8.83

2 left at this price

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Mikuni J8-6EJ12-55 is a precision-engineered jet needle designed specifically for TMX38 flat slide carburetors. This critical metering component controls fuel flow through the carburetor's needle jet, directly affecting mid-range throttle performance and fuel mixture accuracy.

Key Features:

  • Precision-manufactured to Mikuni OEM specifications for reliable performance
  • Designed for TMX38 flat slide carburetor applications
  • Controls fuel metering in the mid-throttle range (approximately 1/4 to 3/4 throttle)
  • Features J8-6EJ12 taper profile for optimized fuel delivery
  • Direct replacement for worn or damaged jet needles

The jet needle works in conjunction with the needle jet to regulate fuel mixture as the throttle slide moves up and down. Proper jet needle selection and condition is essential for achieving optimal engine performance, smooth throttle response, and correct air-fuel ratios throughout the mid-range power band. This genuine Mikuni component ensures precise fitment and consistent metering characteristics.

easy to find item I wanted and at a good price.

good

Easy process. Item was as presented and is working well.

No problem

Quick and easy check out

it been great..............

thanks great deal

Easy

Don't know if it accepted the coupon code but shopping was easy.

Lowest price on the Internet, lightning fast shipping! Check Autoplicity before you go anywhere else.

Ordered a Trac-Bar from Autoplicity, and didn't have any problems. WILL be back!

thank guys didn't expect the shipment that quit,but any way thak a lot or the next order

they had the lowest price on the window pillars i was looking for<br>for my 2012 dodge ram they also gave me 25% off shipping there customer service was helpful and pleasant i got the best deal on the planet thank you autoplicity

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy