I just saw this thread too. So sorry to hear of Bob's passing. He helped me with my 931B more through forums and e-mails than I think a dealer could have with the machine right in front of them. He knew these machines like the back of his hand and knew all the tricks and short cuts to get them working right, whether it was fitting 2 seals to keep the throttle shaft from leaking or a simpler way to adjust to adjust the brakes and steering clutches. It's not often you find someone who is so willing to share a lifetime of knowledge with others. What's even more fascinating is if Bob told you something, it was on the money 100%. Bob leaves a legacy that most can only dream of! My deepest condolences to Triscuit and the rest of Bob's family.