Finally Blown Up

[smallyshane]

luckily just pulled away from the lights and thought something was up anyway (Strange whirring sound) so was taking it easy, just got into 3rd and then it sounded like the supergharger belt had snapped , in with the clutch and into neutral as soon as, pulled over to the side of the road thinking what the

Tried the kickstart, jammed.....

Phoned work and told them I wouldn't be back from lunch and pushed just shy of a mile home in the rain...

Just had a qucik look and thought the flywheel had come loose so of with the cowl, red paint all over the inside of the cowl, whiped the flywheel off and it all looked good, put it back on and tried to wiggle it, and it wiggles all over the place, looks like the standard weight flywheel on the smallcone mazz crank has taken its toll

Oh well, looks like the M1 is now a priority ;D ;D

[hank]

so what you thinks happened, bearings exploded or crank snapped?

NB. saw a silver smallie coming towards me at weekend, then i noticed the rider dwarfed the bike and realised it wasn't you ;D is that the lad from easingwold?

[smallyshane]

OK Managed to get the motor out on sat, and got it split on sunday.... This is what I found







Looks like the casings and gearing etc. are all ok...

Quite lucky me thinks ;D

[hank]

bit of JB weld will sort that out





;D ;D

[darkryder]

Shit!

What's the weight of the flywheel you are using?

[smallyshane]

Way too heavy, was the weight!!! Standard ET3 one mate...
managed to do 7 thousand miles on it though, so not really that surprised!! Got a new Mazz crank for the M1 but got an HP4 for it and will probably get my standard one lightened. deffo not putting standard weight on again though

[breezer]

YE GODS!!!!!

[jonnysnatchsniffer]

that happened to me at about 65 and the flywheel departed the scoot and fucked off pretty rapid into the distance

[joshpsmsc]

I've had that happen in the exact same place before. I was using a lightened ET3 flywheel at the time. I started using 20/20 cranks after that.

[Juan]

Bloody hell Shane!

I've stolen this quote and although not about the same thing it made me laugh like a drain. ;D

At least it died an honourable death in a cacophony of alloy destruction.........better than it getting coked up and slowly dying from low rpm poisoning.

Buy a big carryout of strong beer, build a funeral pyre for the Malossi kit and stand saluting the slowly melting alloy untill the neighbours call the police..................Then buy another kit.

;D ;D ;D

Looks like you got lucky on the cases etc, nice one.

[unreliablesc]

May 12, 2008 16:26:33 GMT joshpsmsc said:

I've had that happen in the exact same place before. I was using a lightened ET3 flywheel at the time. I started using 20/20 cranks after that.

just a thought , the 20/20 cranks are just as weak the point where Shanes broke (20mm bearing), so why isn't this a problem with 20/20s?

[joshpsmsc]

I hadn't really thought of that. Since I switch, I haven't broken my crank. I had previously broke a couple cranks in that spot before. I also stopped using air tools to tighten my flywheel nut. I thought about switching to a 24/25 crank but didn't really like the size of the conversion bearing or seal. I am sure others who are running the 24/25 cranks can shed some light on the conversion bearing/seals longevity.