Drilling yolks
 

Is it safe to drill top yolk on a 650 s anyone done it ?

Re: Drilling yolks
 

dont know if eggs need drilled lol...
why do you want to drill a top yoke?

Re: Drilling yolks
 

As want to do Bar conversion

Re: Drilling yolks
 

thanks i know about cables etc its just there is not a lot of meat on sv650s top yolks and i know you can buy billet aftermarket ones and i know you can get 650n one but like you say rare and expensive just want to know has anyone done this or can it be done i.e safe ????

Re: Drilling yolks
 

also my mates sv battery nealy caught on fire due to over charging i guess has to regulator /recitfier right ? is this common fault and what are the fixes any links be appreciated on both the above thanks in advance

Re: Drilling yolks
 

If you do drill it, make sure you beef up the back (the space in the casting) with a custom made ally "washer" to spread the load.

Many have done it, so it is possible. Personally I opted for an N model top yoke.....

Re: Drilling yolks
 

your bike your life.

problems: possibility of the bolts ripping through the yoke, doubt it will happen if you do it right but hey you never know. how accurate can you drill the holes? 1mm on the yoke could potentially be 10mm at the bar end so your bars will always be squint.

if you sell the bike later you could potentially be selling someone a death trap. can you live with that?

Re: Drilling yolks
 

Thanks guys

Re: Drilling yolks
 

My top yoke is modified, a machinist friend made a very tight fitting aluminium block to fit into the back webbing. This was bonded into place and once the bond had cured, the yoke was drilled for my risers. The material removed is a tiny amount, but the strength added with the block and the epoxy is significant. By the way, if you do this, don't use epoxy from the pound shop, use a high quality epoxy designed for such a purpose.

Re: Drilling yolks
 

I have a Drilled + Reinforced 'S' top yoke, bar riser clamps, standard 'N' handlebar, venhill cables (+65mm) for a bar conversion that I never got round to fitting to my SK9. I can let you have the lot for £120 if your interested.