T-boss 410

Yeah, mine is a Linhai platform. I don't have much time on it, but it's been reliable. I have had some starting issues, but I believe that's battery related.

I haven't had any bad experiences with Massimo, but I haven't needed any repairs yet, either. I did need a new roof, as the original one blew off while it was being shipped. I bought mine through an eBay auction, so it was not covered by any warranty. They shipped out a new one without hesitation. I was expecting to have to pay, so this was a great thing for me. I've also been able to chat with a technician who has helped me with some questions. All around, it's been a good experience for me. However, there's some here who have not had such a good experience. I figure you will hear from them soon.

If it's fuel injected, you could possibly hook up the fuel pump to a power source and use it to drain the tank.

Oh Joe.....ever since you bought your Massimo you've been suspicious 🤣🤣🤣

I may have gone too far when I did my last oil change, but I removed the belly pan. It made things much easier, as I could see what I was doing much better. I believe there's only a few machine screws holding it on.

By "cylinder gasket" do you mean the head gasket? Keep in mind that these engines are usually a clone of another manufacturer, such as Yamaha, Kawasaki, etc. If you do some research you may be able to find out what other manufacturers out there are using an identical engine. This can lead to parts that you originally thought were no longer available. I'm sure other members here can chime in and offer some help with that.

Could the flare at the fitting be leaking?

I checked the parts diagram for my T-boss, and the parts are the same, just numbered differently. Assuming that the starter meshes with the idler gear, which meshes with the crank gear, you should only be able to spin the idler gear one way. If I am correct in my assumption, your starter clutch (#2) is bad. I don't know the level of difficulty in replacing the starter clutch, so I can't help you there.

Did you try the Teflon tape?

The gear marked #3 in the diagram should turn freely in one direction, but not in the other direction. If it won't turn in either direction, you've found the problem. There's a one way clutch or bearing that will allow the gear #3 to spin freely in one direction, but the opposite direction is what starts the engine. The starter gear stays meshed with gear #3. Does the starter spin at all? It may be spinning in the wrong direction. Ask me how I know 😡. If you can get something into the hole that houses the gear #3 besides your finger, such as a screwdriver, try to spin that gear using that. If you still can't get the gear to spin in either direction, you'll most likely have to replace the one way bearing.

Yeah, found out while I was trying to hunt down a starting issue with mine. Not sure why they designed it that way, but it's Chinese design, so who knows? You would think that the starter would fail quickly when it's spinning with the engine.

The starter in my Massimo T-boss has no Bendix drive. The starter gear stays meshed with the crank gear. There's a one way clutch of sorts on the crank gear. The starter switch engages the starter which will spin the crank gear only one way due to the clutch. The crank gear will freewheel in the opposite direction. Sorta hard to understand (at least for me). Even my riding mower has a Bendix drive. I don't know if any other UTV manufacturers make theirs the same way.

Good to hear!

I take it the leak is at the fitting? Is it both fittings? Did you maybe try some plumber's tape? Wrap that around the threads on both fittings and see if that helps.

I don't know if this applies to your model, but on mine (2019 T-boss 410), the starter meshes with a big gear that is a one way clutch sort of thing. That big gear will turn freely one way, the other way is what starts the engine. If you can get a finger or a screwdriver in there and push on the gear both ways. If it moves only one way, the clutch is good (at least I think it is). Try pushing it both ways. It should lock up in one direction, but freewheel the other way. Hope this helps.