vibration in pegs

tony532 · World Chat Champion Joined: 29 May 2004 Karma :

hi all i have just got my bike back after having a new chain and sprockets fitted and have noticed a fair bit of vibration in the pegs and front of bike.

i know this is bad karma for not buying rookies chain and sprockets but i wondered if anyone has an idea what might be causing it.

someone on another forum has suggested it might be the engine mounting bolts.

cheers for any advice
____________________
bikes owned :-

aprilia rs125 - suzuki gsxr400rrsp 1990 - yamaha yzf600r thundercat - honda hornet 6

G · The Voice of Reason Joined: 02 Feb 2002 Karma :

First thing I'd check is the chain tension.

tony532 · World Chat Champion Joined: 29 May 2004 Karma :

the mechanic said it was spot on when i was talking to him at the back of the shop.

told me to keep it like that and to keep it lubed up.

he usually goes on for ages about valves and shims e.t.c when i ask him about taking the bike in for another major service.

he seems to know his stuff but this seems to have started after i took the bike in.
____________________
bikes owned :-

aprilia rs125 - suzuki gsxr400rrsp 1990 - yamaha yzf600r thundercat - honda hornet 6

Zimbo · World Chat Champion Joined: 09 Jul 2004 Karma :

Carb balance?

tony532 · World Chat Champion Joined: 29 May 2004 Karma :

bike was in last month to have the carbs stripped cleaned and balanced reset e.t.c

and it was fine after that.

only just started happening
____________________
bikes owned :-

aprilia rs125 - suzuki gsxr400rrsp 1990 - yamaha yzf600r thundercat - honda hornet 6

Bezzer · World Chat Champion Joined: 14 Apr 2005 Karma :

What bike??, some Hondas and I don't know what others have a shock absorber type thing in the OE front sprocket, use aftermarket and you get more vibes in the pegs. You do sometimes get it between different makes of sprocket as well, just a slight difference, weight,material etc can affect the vibes/harmonics. If eveything is set up right it's just one of those things you'll have to get used to unfortunately
____________________
I used to be indecisive but now I'm not quite so sure.

extreme3d · World Chat Champion Joined: 27 Dec 2004 Karma :

Check the foot peg mounting bolts. I find if mine have loosened a bit the pegs start to vibrate.

Tyre balance could also be causing it- check the tyre weights haven't been knocked off during the sprocket change.

tony532 · World Chat Champion Joined: 29 May 2004 Karma :

cheers for the info

i'm off work tomorrow so i'll have a walk down there and ask them
____________________
bikes owned :-

aprilia rs125 - suzuki gsxr400rrsp 1990 - yamaha yzf600r thundercat - honda hornet 6

Finglonga · World Chat Champion Joined: 27 Jul 2004 Karma :

Is the vibration when the bike is moving?

I doubt it is tyre balance even then, as it won't just be the pegs you feel it through.

Check all the engine mounting bolts are tight. Re-check the chain tension with you sitting on the bike too.
____________________
Andy Sez....
F.Y.Y.F.F.

tony532 · World Chat Champion Joined: 29 May 2004 Karma :

hi it doesnt happen all the time.

just every so often the pegs will vibrate for a while

just remembered that the shop is closed tomorrow.

i will check the chain tension in the morning.
____________________
bikes owned :-

aprilia rs125 - suzuki gsxr400rrsp 1990 - yamaha yzf600r thundercat - honda hornet 6

THCi · Nearly there... Joined: 28 Sep 2004 Karma :

Get a spanner on the mount bolts and pegs as well, might work wonders.

First thing I thought of is chain tension, if you've been running knackered sprockets for ages it might just be the difference between them has startled you-just a different type of vibration.
____________________
Past: GZ 125 K4 Marauder, VL 125 LC Intruder, FZS 600 Fazer. Present: GSF 600 N K3 Bandit, GSX-R 600 X(soon)
"We're not gonna die. We can't die, Bendis. You know why? Because we are so...very...pretty. We are just too pretty for God to let us die."