Bolt size for under 125 Z-star engine (horizontal)

coombes1 · 03-18-2013, 03:06 PM

Hi Guys:

Do you know what size bolts and threads are needed for the fastener that holds the engine to the frame? I think there are 2 and they are both gone but I do not have many spare parts kicking around so I can try them. I'll just have to go to a store and pick them up but figured people here would know the size before I do. My kid was riding this atv sometime back and the chain came off on him a couple of times...I figured it wasn't the bushings this time because I already replaced them with Brass. Sure enough, the wole engine is twisting sideways, bolts were gone from the bottom of the machine. Just to be clearer, these are bolts going through the bottom skidplate of the frame straight up into the engine.

Thanks,

Steve

TCCKSR · 03-18-2013, 05:38 PM

I had the same issue on the 2 zstars I used to have.

I finally went out, and replaced EVERY critical bolt on the quads with good quality bolts with lock nuts and lock washers and some loctite.

It saved me spending tons of time on the trails replacing bolts that fell out and let us actually ride.

03-18-2013, 03:06 PM	#1
coombes1 Join Date: Feb 2011 Location: Peterborough, ON Posts: 26	Bolt size for under 125 Z-star engine (horizontal) Hi Guys: Do you know what size bolts and threads are needed for the fastener that holds the engine to the frame? I think there are 2 and they are both gone but I do not have many spare parts kicking around so I can try them. I'll just have to go to a store and pick them up but figured people here would know the size before I do. My kid was riding this atv sometime back and the chain came off on him a couple of times...I figured it wasn't the bushings this time because I already replaced them with Brass. Sure enough, the wole engine is twisting sideways, bolts were gone from the bottom of the machine. Just to be clearer, these are bolts going through the bottom skidplate of the frame straight up into the engine. Thanks, Steve
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03-18-2013, 05:38 PM	#2
TCCKSR Join Date: Feb 2011 Location: Langley, BC Posts: 298	I had the same issue on the 2 zstars I used to have. I finally went out, and replaced EVERY critical bolt on the quads with good quality bolts with lock nuts and lock washers and some loctite. It saved me spending tons of time on the trails replacing bolts that fell out and let us actually ride. __________________ TCCK: The Coca-Cola Kid......... Hide your pepsi or I take your soul !!
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