Need some advice on front sprocket

paulyzf600 · Scooby Slapper Joined: 24 Oct 2004 Karma :

Hello right I need some advice, recently my thundercat has started to make some clicking noises when under load and you can feel it on the foot pegs I am pretty sure it's coming from the chain/sprockets. I checked the front sprocket and it's pretty worn so I need to change them.
Ok no probs apart from the fact I can't get the bloody big nut off the front sprocket, Any tips on how to get this damn thing off? cheers
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Yamaha YZF600 Thundercat

tatters · Exxon Valdez Joined: 05 Jan 2004 Karma :

put the bike in gear and get a mate to hold the back brake on. the try to get the nut of with a socket, if it does,nt come off put the socket on a tee-bar and get a large metal pole about 1m long on the other end, this should give enough leverage to get the nut off.
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Past:NRG50,AF1125(x2),NSR125RR,ZZR250,CX500,VFR400,KR1S,ZZR600(x2),CB400N,YZF1000(x2),KH125,Z200,FX400R,CBR954RR(x2)GPZ500S,GT550,VFR750F(x2),RD350N,XR650R,CBR600F,CB250,KDX250,YZF750R,CRM250,400EXC,KLR650,TTR600RE,DR350S,R100GSPD,RGV250,VMAX1200,DL650,KZ750 Present:G650XC,C12,CRF450X,1190ADV

Guest · Brolly Dolly Joined: 22 Apr 2004 Karma :

What tatters said Thumbs Up

I've even had to stick a lump of timber through the back wheel (not steel spoked of course) to stop it turning against the brake.