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RPO Powersports will ship In-Stock items, but may see a 1-2 Day delay.
Out of Stock Items will see various delays based on the manufacturer.

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Possible Delays
In Stock: 1-2 Days || Out of Stock: 5-30 Days

Shop   /   Engine   /   Jet Kits
Basic Jet Kit


SKU 110-01641
Dimensions 5.00" x 1.00" x 8.00"
Weight 1.00 lbs

Yamaha – Big Bear 400 (2000-2012)
Basic Jet Kit
by HMF Engineering

All HMF exhaust jetting has been predetermined with proper jetting specs to ensure the ultimate performance from your HMF product and should be used as a reference only. The proper jetting will ensure the full performance potential from your HMF aftermarket high performance pipe and is necessary on all machines.

  • Re-jetting will provide the best air/fuel ratio after installing an HMF exhaust.
  • OEM jets. Keihin jets for Keihin carburetors and Mikuni jets for Mikuni carburetors.
  • Baseline jetting as well as smaller and larger jets included to accommodate changes in altitude or humidity.
  • Bikes must be jetted for valid exhaust warranties.
  • Included: Individual Mikuni Small Round Jets: 115, 120, 125

Want it by Saturday, May 30th?

Order in the next 6 hours 18 minutes and select "Next Day" shipping during the checkout process.

$25.46 $29.95
MPN: 641212360001


SKU 110-01641
Dimensions 5.00" x 1.00" x 8.00"
Weight 1.00 lbs

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