And she just S***T herself...

[Ixion]

What sort of big end is it? Roller bearing; split Vandervell shell; or white metal bush on a split crankshaft?

[Dreamflyer]

What sort of big end is it? Roller bearing; split Vandervell shell; or white metal bush on a split crankshaft?

i havn't a clue...i am still only (tonight) learning what they do letalone what kind i've got..

[Mully]

What's the warranty period on a Hyosung?

I've always been interested in the outcome of going a manufacturer when you are outside the warranty period. Under the CGA, goods must last for a reasonable period of time.

[Chooky]

Hmmm..... happened just after a service...?

Chances are its something they did, or didnt do.

Might be worth asking what sort of oil they put in it..
Get a sample if you can and have someone check it out and make sure its not hydaulic oil or something..

[Conquiztador]

Reasons big ends go:

- Age. If oil changes done on regular basis and good oil used, oil filters changed, oil pump working well, then on any decent bike you should get over 100K before any problems. Normally up to 150K

-Crappy oil Not right oil can kill the big end fast.

-Mechanical failure of other bits Faulty oil pump, metal bits (alloy, brass, any really) that have come off from other parts of bike and then getting in the big end bearing.

-Lack of oil Blocked oil filter, blocked oil line, faulty oil pump, not enough oil.

-Crap in oil As you would never your self introduce something that is not to be in the oil this is by mistake (leave oil plug off in rain) or on purpose (by someone who hates you or does not want you to ride the bike, or by a mechanic who wants more work...). Anything will do to kill the big end (as most, if not all, bikes have their oil filter on the return line): water, sand, sugar, metal filing).

Crappy bearings I have no idea what is inside a Hyosung (and have no plans to find out) but I be prepared to bet my left nut that there is no SKF or Timken bearings inside but some crap made outta inferior soft Asian metal.

-Too early timing (Too advanced) Puts heaps of pressure on the big end as it will have to fight the explosion each time.

-Revving the snot outta her Makes sense. She has to work her gut out and something will give.

-Assembly (Added after reading bsasupers post, good point) The big end is one of the bikes most critical bits and therefore needs to be assembled with care. Clean environment, all bits to specification and all bolts to specific torque, as if over tightening or too loose, the wear will increase heaps.

And I am sure there are some other reasons too that I have omitted. But these should cater for 99% of big end failure. Sadly if you have no idea, then you are at the mercy of the mechanic, and if he has caused it, do you think he is gonna tell??

[bsasuper]

As in a previous post, its the quality of the machining and matching of parts when assembled at the factory,hyosung quality control is crap,unlike the big jap brands which are more or less blueprinted from the factory.

[crazyhorse]

Welcome to Motorcycling mate - where anything and everything can happen.

[Jizah]

The bearings are indeed, complete shit.

[Lurch]

As in a previous post, its the quality of the machining and matching of parts when assembled at the factory,hyosung quality control is crap,unlike the big jap brands which are more or less blueprinted from the factory.

A single example of one of the most common bikes on the road has a big end failure and suddenly Hyosung is the devil again.

I might buy into this if people just hadn't forgotten about the number of 'big name' Jap bikes that died 20 years ago when those same companies were actually making 250's.

Has anyone stopped to consider the fact that only the best examples of the Jap bikes are still on the road? The bad ones have all long since died violent, bearing exploding, cylinder gouging deaths.

It's like the weather, people forget very quickly, and then start calling it global warming.

[jono035]

A single example of one of the most common bikes on the road has a big end failure and suddenly Hyosung is the devil again.

I might buy into this if people just hadn't forgotten about the number of 'big name' Jap bikes that died 20 years ago when those same companies were actually making 250's.

Has anyone stopped to consider the fact that only the best examples of the Jap bikes are still on the road? The bad ones have all long since died violent, bearing exploding, cylinder gouging deaths.

It's like the weather, people forget very quickly, and then start calling it global warming.

Very good point, but I think most people should be forgiven for equating chinese with crap at the moment, at least for the most part. My experiences with crap chinese stuff run from small pieces of electronics right through to container cranes and some of the stuff I've seen is pretty horrendous...

[sil3nt]

Hyosung is Korean not Chinese....

It looks like most of the members here have gone through a Hyosung factory tour and seen how poorly these bikes are made because surely they wouldn't talk crap without any facts!

[jono035]

Hyosung is Korean not Chinese....

It looks like most of the members here have gone through a Hyosung factory tour and seen how poorly these bikes are made because surely they wouldn't talk crap without any facts!

Korean huh? Well I haven't had anything at all to do with Korean made stuff at all, so I couldn't possibly comment

[YellowDog]

All the reports I have read say that Hyosung motorcycles are well made and as good as the Jap bikes.

You will always get the odd 'dud' one. 20k is hardly any use at all.

I would be surprised if the manufacturer refuses to play ball.

[jono035]

All the reports I have read say that Hyosung motorcycles are well made and as good as the Jap bikes.

You will always get the odd 'dud' one. 20k is hardly any use at all.

I would be surprised if the manufacturer refuses to play ball.

The fact that it would seem they have a negative image to overcome may even be of help in this situation.

[Dreamflyer]

All the reports I have read say that Hyosung motorcycles are well made and as good as the Jap bikes.

You will always get the odd 'dud' one. 20k is hardly any use at all.

I would be surprised if the manufacturer refuses to play ball.

Well, here we are hoping...and yeah, from what i have read of reviews and others experiences with sungs, they are a good quality bike, in par with jap stuff. lets not forget they have been making bikes since 1979! sure their new in the street bike market, but same engine principals.
and 20k is a bran new bike really.

however my money is not on the fact the mec stuffed up. from what iv seen, the guy is top notch, and very methodical, with certs to work on just about anything on 2 wheels, and sometimes 4...but hey, i could b wrong

from my research, the sungs that shit themselves, mainly do it on the minor stuff anyway, mostly to do with the parts that are assemblled away from the factory in a rep store! the engine is a complete unit when it comes to them.

so dodge parts maybe?