KR-1S.co.uk Forum

Posted: **Sun Jan 20, 2013 9:36 pm**

what was the conlusion of the holes in front of the pistons,i had a weird thought of if you taper the hole then pin it with a taper pin then very gently swage it in there ?

Posted: **Sun Jan 20, 2013 9:42 pm**

I just drilled 4 extra holes [copying standard pistons] on my new piller drill

Posted: **Sun Jan 20, 2013 10:00 pm**

so the holes in front are still there ? ive been hunting around for different pistons and they have em ,but in my mind they`l lose crankcase compression (shall we start another thread on this)

Posted: **Sun Jan 20, 2013 10:06 pm**

fred wrote:so the holes in front are still there ? ive been hunting around for different pistons and they have em ,but in my mind they`l lose crankcase compression (shall we start another thread on this)

Might as well continue it here Fred (least I know where it is)

Cheers
Bernie

Posted: **Sun Jan 20, 2013 10:06 pm**

I was going to fill the front holes. but Bernie was,nt sure that the alloy weld I use would,nt work loose, I also don't think the two small holes on the wiseco pistons would loose much power [am open to opinions]

Posted: **Sun Jan 20, 2013 10:47 pm**

im`e with bernie ,i dont like plastck fantastic stuff ,just another worry,metal metal no probs ,ime just being a rate bugger asking why are they there

Posted: **Sun Jan 20, 2013 10:52 pm**

Hi Fred,
All the 300s have them as they use Wiseco pistons.
What pistons are you using?
Cheers
Bernie

Posted: **Sun Jan 20, 2013 10:55 pm**

i dont know to be truthfull ,what are the holes for ,think there the open pin type ,not the ones that wedge in sometimes

Posted: **Sun Jan 20, 2013 10:59 pm**

Lubrication I think Fred, the pistons are for an RGV250.

Posted: **Wed Jan 23, 2013 3:54 pm**

all done bernie

carbs completely stripped then ultrasonicly cleaned/ new pilot jets/new main jets/new n99 needles/new gaskets for tops/new gaskets on float bowls and new bolts. [just waiting for the no 4 slide, then I can connect the cables and you can collect when you are in my area.

I think your engine should sit in autosols reception Bernie

Posted: **Wed Jan 23, 2013 4:24 pm**

That looks lovely, nice work Martin

Posted: **Wed Jan 23, 2013 4:30 pm**

You need new pink hose for the carb breather pipes

Yambits sell it

Posted: **Wed Jan 23, 2013 6:00 pm**

headcoats wrote:You need new pink hose for the carb breather pipes
Yambits sell it

Hi Martin,
I got some from Allens when I was passing

Posted: **Wed Jan 23, 2013 6:04 pm**

Many thanks Martin =D>

You have done a fantastic job, I should be in your area next week.

It would still be in boxes all over the garage, if I was doing it

The drinks are on me

Cheers
Bernie

Posted: **Wed Jan 23, 2013 6:43 pm**

Wow!

KR-1S.co.uk Forum

500BERNIE,S ENGINE