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Re: 300cc Kr1s Engine build

Posted: Mon Feb 25, 2019 3:30 am
by KR-1R
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are those pistons on backwards?

Re: 300cc Kr1s Engine build

Posted: Mon Feb 25, 2019 11:32 am
by martin
Looks like they are Danny.
Did not notice the holes on the piston facing the back when they should be to the front.
Doesn’t matter as it’s going to be stripped down and new pistons fitted

Re: 300cc Kr1s Engine build

Posted: Thu Apr 04, 2019 8:19 pm
by podman
Very nice indeed, ive seen Garys going at full chat and they do seem to go well...and sound proper 2T fit...

Re: 300cc Kr1s Engine build

Posted: Sun Apr 07, 2019 8:22 pm
by podman
Fab...

Is Mick Abbey the person who is going to build the pipes & set it up afterwards?

Small end bearing

Posted: Mon Apr 08, 2019 12:25 am
by KR-1R
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here is a link to partial cross reference gudgeon pin dimensions against some common JDM OEM numbers

http://www.tkrj.co.jp/product/m-se-bearing.html
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Re: 300cc Kr1s Engine build

Posted: Mon Apr 08, 2019 3:00 pm
by martin
What I meant about the pipes janbros was that the pipes are being made by mick abbey who is tuning the top end. And then setting it up on the dyno.
That’s why I said it will be the first time it would of been done,
I know you and fred have made pipes before, so may of got it a bit wrong.

Re: 300cc Kr1s Engine build

Posted: Mon Apr 08, 2019 4:31 pm
by martin
Thanks for the link Danny.
I have found one bearing that may do it from the list you sent. Would be easier than fitting washers.

Re: 300cc Kr1s Engine build

Posted: Wed Apr 17, 2019 5:16 pm
by 500bernie
Lots of goodies there John 8)

Re: 300cc Kr1s Engine build

Posted: Thu Apr 18, 2019 8:32 am
by Binetta Steve
E3 plugs ,aren’t they the plugs with the fancy electrodes, bit like marine plugs? Looks like everything on your sparks from generation, timing, connection and firing will be spot on. Looking forward to hearing how its going.

Steve

Re: 300cc Kr1s Engine build

Posted: Thu Apr 18, 2019 10:31 pm
by 500bernie
Hi Steve,
Been running mine with all those parts for over 4 years now, never missed a beat, never fouled a plug in all that time, and had quite a few blasts on Mick Abbeys dyno.
Cheers
Bernie 8)

Re: 300cc Kr1s Engine build

Posted: Fri Apr 19, 2019 8:00 pm
by Binetta Steve
I didnt spot the electrical wizardry you had employed in your build Bernie. I guess I looked more at the finishing and those lovely Lomas pipes.

Re: 300cc Kr1s Engine build

Posted: Wed May 01, 2019 4:31 pm
by scooble
Johnfarley wrote: Sun Apr 21, 2019 11:52 am Now got my 34 mil Stuffers for the vforce3 👍picture shows the big difference between the std 28 mil ones.
...can you tell me what the VFORCE part number is for those stuffers?

Re: 300cc Kr1s Engine build

Posted: Wed May 01, 2019 5:47 pm
by Gerrit
I'm not sure whether V-Force actually list those stuffers, Scooble, but BDK certainly do!

Re: 300cc Kr1s Engine build

Posted: Wed Jun 05, 2019 3:06 pm
by 500bernie
This is where all the magic is happening at the moment. .
Image

The Twostroke Wizard is working hard....
Image

Re: 300cc Kr1s Engine build

Posted: Mon Aug 12, 2019 5:23 pm
by Gerrit
I wonder what the bore is of these cylinders- 60-61 mm?