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broken crankshaft ???


blackhat250
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Aye is all hapnin tday.. :( Like malta tkkr. kicked the husky 430 few times the day .. misfired [kickbacked ] big time

then no compression. :blink: whipped of head ... then wen turning over "" piston go-in up & down--- put fingers on top o piston "" canstop it and still turn the clutch housing and crank gear,,,

Barrel off --- can lift piston up down and crank gear [ clutch basket etc,] turns ,, but if i grab clutch . lack o" drive ... summat stripped or at worst crankshaft...???

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  • Moderator

does sound like a woodruff key, although they are only there to locate the part, its the taper friction that keeps it on. Maybe a loose bolt causing it to jump

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does sound like a woodruff key, although they are only there to locate the part, its the taper friction that keeps it on. Maybe a loose bolt causing it to jump

WHAT SUPERSTARS U+ [ O.G.OA.B.] ARE...... ;)

It was indeed the primary gear [slipping on shaft] :) There is no key[way] just a taper shaft .. had slipped "

Gona get the graphite paste on shaft [seat it properly] than tighten the 32mm nut .. Musta been some torque in that kickback to slacken it -----

By the way theres a CLASSIC SCRAMBLE [ TWINSHOCK AT LOCHSIDE FARM TMORROW] just off A90 /forfar .nrthbound. past Mcdonalds . 500yrds // for any of u vintage bikers up north..11AM. STRT. i"LL BE MARSHALL

SINCE HUSKYS on the operating table ;)

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  • Moderator

thought graphite was slippy?

maybe put thread lock on your nut (not your head)

maybe you could lap in the taper to get max friction using fine valve paste!!!

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