Jack_Shaft
TY 4 Stroke Junkie
Was wondering if any of you have found a practical way to remove the big (huge) nut on the MAG side of the sled (holds top gear in place) without buying the special tool from Yamaha.
Maybe a big deep socket? Size?
Maybe a big deep socket? Size?
AaronBND
TY 4 Stroke Junkie
Leave the key in the shaft and open a crescent wrench up just enough to slide over the shaft. The key will act as a stop and you can break it right loose. I have a crow's foot I break the nut with. Pretty simple.
Aaron
Aaron
Yeah I just use a large adjustable and have somebody grab ahold of the secondary.
03griz
Pro
I use one of those rubber gator wrenchs around the helix on the secondary and then a large cresent.
Jack_Shaft
TY 4 Stroke Junkie
AaronBND said:
*cringe*
In all honesty, that's a decent way to do it when you're in a pinch, but I'd rather slap something on my impact and back that sucker out of there.
Any idea on the size of the nut
AaronBND
TY 4 Stroke Junkie
Sorry......I was an aircraft mechanic for years and have never really liked "slapping" an impact on the main shaft of an engine! To many internal parts for that kind of shock. The crescent is only used to hold the shaft while backing off the nut.
Aaron
Aaron
Micro-Belmont sold my the sockets to properly grasp the shaft and fit the upper gear nut cheaper than the Yammie part cost. 
Jack_Shaft
TY 4 Stroke Junkie
grapeape said:Micro-Belmont sold my the sockets to properly grasp the shaft and fit the upper gear nut cheaper than the Yammie part cost.
Nut size?
LazyBastard
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Jackshaft, not crankshaft.AaronBND said:
I think it is 35 or 36 mm, but the best part is I also have a 1/2 drive socket that fits the splines where the secondary fits, so it can be torqued correctly.
VX1R
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grapeape said:
grapeape...
Thanks for letting us know about the Micro Belmont sockets.
I called them today and ordered both sockets, one for the nut (36mm) holding the gear on the shaft and the other one to hold the shaft while you remove/install the nut. Both sockets cost less than the Yamaha specialty one and I still had some cash left, which will obviously be spent on some other sort of snowmobiling item.The socket is 36mm, mountain performance also sells them. Out of stock until fall time, 
.
.
beat me to the 36mm.
I set the break and remove the nut with a socket.
I set the break and remove the nut with a socket.
How do you set the brake with the chaincase cover and brake assembly off?
LazyBastard
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Put an adjustable wrench on the driveshaft.
