This Kit replaces vital components in the BST40 Carburetor including new a Float, Needle Valve, Gaskets, Seals, Diaphragm, Spring and Float Bowl Screws to return the stock Mikuni BST40 Carburetor to like-new operation. As a bonus we have included Viton o-rings for the float assembly and 4 stainless steel allen screws.
Same-day shipping cutoff: Noon Pacific Time
Spring time is in full swing here at ProCycle. With these busy days please be sure to let us know if your order is time sensitive. We try to do as much as we can to accommodate your upcoming trip.
DR650 '90 - '25
XR650L '93 - '25
Ships same business day
$63.95
DR650 '96 - '25
XR650L '93 - '25
KLR650 '87 - '18
DR650 '96 - '25
XR650L '93 - '25
KLR650 '87 - '18
Has your TM40 carburetor been sitting for too long and now needs to be rebuilt? Then what you need is this TM40 Rebuild Kit that contains Genuine Mikuni replacement parts.
This kit includes:
- Needle Clip and Washer
- Top Cover Gasket
- A/P Nozzle O-Ring, Plug and Rubber Cap
- Fuel Screw O-Ring, Washer and Spring
- Float Bowl O-Ring
- Pilot Fuel Screw
- Drain Plug O-Ring
- #3.8 Needle Valve Assembly
- O-Ring for the Starter Circuit and Needle Valve
- New Screws for the Float Bowl
- Vent Hose
Ships same business day
$39.95
DR650 '96 - '25
Geared for the do-it-yourselfer that already has a TM40 or HS40. This kit supplies everything you need to convert it for use on your bike.
Kit includes intake and air boot adapters, throttle cables, choke knob, accelerator pump nozzle, a wide selection of main and pilot jets plus a TM40 tuning manual.
Backordered: Waiting for stock from suppliers to fulfill orders placed on or after April 2024
$169.95
DR650 '96 - '25
XR650L '93 - '25
KLR650 '87 - '18
XR650L '93 - '25
DR650 '96 - '25
KLR650 '87 - '18
DR650 '96 - '25
XR650L '93 - '25
- Include top cover gasket, jet needle E-ring and washer, throttle valve seal, pilot air O-ring, fuel joint O-ring, accelerator pump O-ring, needle valve O-ring, needle valve retainer screw, needle valve assembly, float bowl O-ring/gasket, overflow hose, float bowl screws, accelerator pump rod boot
- Genuine Mikuni parts properly replace worn or mistreated components for the TM42 carburetor
- Includes all the parts needed to rebuild TM42 carburetor
Ships in 3-5 business days
$44.95