Underground Motorsports
Engine Parts
$110.00 Free Shipping
Mikuni VM26
This is the proven Mikuni VM26 - 606 series carburetor (not a cheap Chinese copy carb). Great performance, versatile and easy to tune. Comes with 3 extra main jets. Stock main is 190 and pilot is a 22.5
Mikuni VM26
This is the proven Mikuni VM26 - 606 series carburetor (not a cheap Chinese copy carb). Great performance, versatile and easy to tune. Comes with 3 extra main jets. Stock main is 190 and pilot is a 22.5
$26.50 Free Shipping
26mm Performance Carb Kit - Mikuni VM26 - Rebuild Kit
This Rebuild Kit is for the Mikuni VM26 carb available in this section and includes the items pictured.
26mm Performance Carb Kit - Mikuni VM26 - Rebuild Kit
This Rebuild Kit is for the Mikuni VM26 carb available in this section and includes the items pictured.
$16.00 Free Shipping
28mm Performance Carb - Rebuild Kit
This Rebuild Kit is for the 28mm carb available in this section and includes the items pictured.
28mm Performance Carb - Rebuild Kit
This Rebuild Kit is for the 28mm carb available in this section and includes the items pictured.
$59.00 Free Shipping
TB Piston Kit - 60mm - Stock/Race Head/Race Head V2
For stock YX150/160 engines with either the stock head, our regular Race Head or our V2 Race Head. Kit comes with Piston, Pin, Rings, and Clips - 60mm
TB Piston Kit - 60mm - Stock/Race Head/Race Head V2
For stock YX150/160 engines with either the stock head, our regular Race Head or our V2 Race Head. Kit comes with Piston, Pin, Rings, and Clips - 60mm
$69.00 Free Shipping
TB Piston Kit - 64mm - Stock/Race Head/Race Head V2
Replacement Piston for our 170cc YX150 bore kits. Kit comes with Piston, Pin, Rings, and Clips - 64mm
TB Piston Kit - 64mm - Stock/Race Head/Race Head V2
Replacement Piston for our 170cc YX150 bore kits. Kit comes with Piston, Pin, Rings, and Clips - 64mm
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$38.00 Free Shipping
TB Billet Clutch or Stock Clutch - 6 Disk Kit - YX/Jailing/Lifan
6 Plate Kit - Replacement for our Billet Clutch Assembly or an upgrade kit for your stock 5 plate clutch (fits main shaft mounted clutches on all YX and most Jailing and Lifan engines.
TB Billet Clutch or Stock Clutch - 6 Disk Kit - YX/Jailing/Lifan
6 Plate Kit - Replacement for our Billet Clutch Assembly or an upgrade kit for your stock 5 plate clutch (fits main shaft mounted clutches on all YX and most Jailing and Lifan engines.
$15.00 Free Shipping
AFT Performance Foam Air Filter - 28mm Carb & Oko 26mm Carb
Replacement air filter for 28mm Performance Carb and OKO 26mm Carb, Foam (49mm)
AFT Performance Foam Air Filter - 28mm Carb & Oko 26mm Carb
Replacement air filter for 28mm Performance Carb and OKO 26mm Carb, Foam (49mm)
$16.00 Free Shipping
AFT Performance Foam Air Filter - 28mm Carb & Oko 26mm Carb
Red Dual Layer Foam Filter - High quality airfilter for the Oko 26mm carburetor and our 28mm carburetor (49mm).
AFT Performance Foam Air Filter - 28mm Carb & Oko 26mm Carb
Red Dual Layer Foam Filter - High quality airfilter for the Oko 26mm carburetor and our 28mm carburetor (49mm).