Massimo T-Boss 410 Died on the run and won't restart

[k-bo]

T-boss 410, I have no idea. The service manual said 1400 kPa. 1400 kPa/6.895 kPa/psi = 203 psi (not 217, my bad). I'm already operating way above my pay grade on this. I have gone above and beyond to fix it, but now I'm ready to move on, cut my losses, pick myself up, dust off, and load the SOB on a trailer.

k-bo

[T-boss 410]

Well, sorry to hear that. Hopefully it can be repaired.

[k-bo]

Current status: On 3/7, I put everything on the vehicle back together and took it to San Marcos Powersports, a Massimo dealer. As anticipated, they are backed up with repairs for weeks and are having labor issues just like most small businesses these days.

Prior to packing it up, I did a proper compression test and got 105 psi. So, this still seems low. Here's the summary of it all now: cranks and will not start, has initial one time fire at beginning, throws P0201 (injector malfunction) and P0351 (ignition coil issue) codes, has spark and fuel, ignition coil and pickup coil have good resistance readings as does the stator, no visible mechanical issue - everything engages and turns, and wire harness is delivering voltage to ignition related circuits. ECU function and electromechanical ignition triggering cannot be verified with my current toolset. So, I have punted.

k-bo

[T-boss 410]

Hey, keep us posted please.

[motojoe]

Replace your stator and it should come with a pickup coil. that should fix your problem.

[motojoe]

Just for fun if your compression is as low as you say check the valve adjustments a tight valve could cause the loss of compression and also cause it not to start.

[k-bo]

Update on my T-Boss 410: It has been a San Marcos Powersports for over a month. They started evaluating it about 2 weeks ago. The mechanic there determined that it has a broken crankshaft chain. This explains the low compression readings and the computer confusion. Parts are now on order and an end to this saga is in sight. It'll cost me less than I thought, but it is still quite a chunk of change nonetheless.

More to come...

k-bo

[T-boss 410]

Well I don't know if I should be happy for you, or sad for the repair bill.

Was there any indication from the mechanic about what caused the chain to break?