Jim from Hastings

Brabe0525, They could only get the whole assembly, as I recall. They had to try several to get a good one. They gave me one of the bad ones that I look at every day. My Tboss had been like a new machine ever since. It is almost impossible to start the T Boss with a defective cam as it won't allow any compression release when you try to start it. And yes, you will burn out starters AMF starter wires. It's great when it works right but at one time I was as frustrated as you sound. Stick with it until you get a good cam that will allow compression release. In going to try to include two pictures of the cam assembly.

I am quite sure they didn't change the part number and the change is so small it is hard to mic it to find if one is good or bad. That problem is super annoying but once you get the cam that resets so it releases compression at next start IT WORKS GREAT. Please call PSI in Davison for more details. Matt took lots of notes but I don't know if he still works there. Let me know how it goes. It is worth pursuing.

I have a Massimo T-Boss 750 with this exact same problem. They replaced my ECM...no change. I basically burnt up my starter and positive wire to the starter. These were replaced once they found the root cause. The problem is the cam assembly. It has a compression release at low (starting) RPMs. Centrifugal forces closes the valve at higher RPMs. Massimo was of little help to my dealer... three cams were tried. Finally one worked. It's like a new machine...this took nine months. It's starts first time every time. How wonderful. But it was a nightmare and more time in It's first nine months in the shop than on the trail to get it fixed. Great side by side when you can start it. Massimo needs to fix this cam issue, quit shipping machines to dealers that will not start and support the T-Boss 750.