Broken Primary gear

KTM125sx · Mar 28, 2009

[IM
G]http://i47.photobucket.com/albums/f167/Sid100/HPIM1166.jpg[/IMG]

what would cause this to break in half just as the pics shows ....now will i have to retime the motor .ie tdc and line the marks on each gear or does the 1 mark on the cam gear slot in between the 2 on the primary gear.........thanks Paul

berger · Mar 28, 2009

Yes, you will have to retime. The dot on the cam gear goes between the 2 dots on the primary gear.
I have seen primary gears break/crack before. I dont know if it's a defect or not. I would check the bearing/bushing in the clutch hub for wear. When they wear, the clutch hub can get quite a bit of wobble to it. I suspect this is what breaks alot of starter clutch gears.

Taffy · Mar 29, 2009

hey ktm125sx

can we have a name please? can we also have your location and the year and model of husaberg this happened to.

would you put it all in your signature as well?

regards

Taffy

MWA_650 · Mar 29, 2009

Hi KTM 125SX

IÃ‚Â´ve have see this promblem before, if you use rear wheel without damped hub for hard supermotard driving.

I will propose you to mount a anti hopping clutch if you ride SM for save your Engine and better driving skillÃ‚Â´s

Best regards

KTM125sx · Mar 29, 2009

OPPs ................Ill change my sig but for now I live in BC Canada.2005 FC550 i bought new last yr it was left over new stock.......paul

KTM125sx · Mar 29, 2009

testing my sig....[/img]

Taffy · Mar 30, 2009

would you like to send the broken gera to me and i'll have a metallurgist freind look at it for you?

regards

Taffy

husabutt · Mar 30, 2009

There was a recall/update bulletin for 2005 models to re-torque the primary gear and check the torque limiter as some were defective (torque limiters). Check with your dealer and have them check your VIN# to see if yours was affected by the recall . You can also go to husaberg.com and check for recalls/updates for your bike.

Perhaps do a search here on this site and get more info on this update. I think the primary nut should be torqued to 90nm so you may want to check the torque value before taking the nut off.

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Broken Primary gear

KTM125sx

berger

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MWA_650

KTM125sx

KTM125sx

Taffy

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