Massimo T-boss 410 starting

[T-boss 410]

When I start this UTV, the starter seems to bind up, then it takes off and the engine starts right up. I charged the battery, and tightened the terminals. This is a new unit. The battery is a 330 cca unit. The terminals were clean, but I haven't checked the wires at the starter. Any ideas?

 

Thanks

 

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[Travis]

I'd start by looking at the connections on the starter.

And by 'new unit, is the utv new, or the starter?

[T-boss 410]

Sorry, my bad. The UTV is new.

[Travis]

Since you say it does it right before it starts, could be the compression stroke is putting a heavier load on it and slowing the starter down.

although most utvs have a compression release on the valves for ease of starting.

Could be something as simple as a burr on one of the gears binding it

how many HP is the engine?

[T-boss 410]

It's a 25.5 hp single cylinder engine. How do I know if it has the compression relief valve?

[Travis]

330 cca should be more than enough.

Virtually all small engines have a compression release, it's usually placed on the cam shaft and provides a bump to the exhaust valve during start up.

It could simply just be a common occurrence on these machines

[T-boss 410]

So more than likely it's something that can't be remedied?

[Travis]

From what I know, probably not, unless you buy a new starter that either will or will not fix the issue.

My personal advice would be as long as it starts, leave well enough alone...

[T-boss 410]

Thanks, Travis. I got an email from a tech at Massimo, who advised that this is a common occurrence. He says that it will do that on the compression stroke, and since the compression ratio is high on these engines, it tends to bog down the starter. 

[T-boss 410]

I had it running earlier, and it started right up, no bogging down. That has me feeling a bit better.

Thanks for all the help!

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[Travis]

No problem, hope it'll keep on working for ya!

[T-boss 410]

Me too!

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[Rocket]

Starter motor Massimo T Boss 410 UTV.  The starter motor will sometimes stall at compression stroke. Battery wires are to small to carry the amperage the starter motor requires. When the motor stalls it uses a lot of power and heats up. It will burn out the windings in the motor. Massimo part number for the starter is 24101. 

[T-boss 410]

Can those battery cables be replaced with bigger ones? Are we talking about just the positive side, or both?

[Travis]

i wouldn't see why not. i would make sure both cables are the same size.

[T-boss 410]

So make new cables for both positive and ground? Any idea what size we should use?

[T-boss 410]

Anybody have any idea what gauge wire to use?

[Travis]

I'd go with 4 or 6..... Tractor supply sells battery cable and ends. 

[T-boss 410]

Very good, sir. Thanks. Looks like I will have to do some measuring.

[WhiteLightning]

Let us know how it goes. Mine does the same thing, but if I keep a battery maintainer on it , it seems to be fine.