Replace the worn slide guide in your stock Mikuni BST carburetor before it causes additional wear to the needle and needle jet. There are wear indicators on the slide guide that help you recognize when it is time to replace your slide guide. New O-ring included.
Same-day shipping cutoff: Noon Pacific Time
We are now accepting submissions for this year’s Calendar Photo Contest! Please upload your images here by 9am Pacific on September 16, 2025.