300cc Kr1s Engine build

Show us that box of bits in your shed!
KR-1R
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Re: 300cc Kr1s Engine build

Post by KR-1R »

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are those pistons on backwards?
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martin
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Re: 300cc Kr1s Engine build

Post 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
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podman
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Re: 300cc Kr1s Engine build

Post by podman »

Very nice indeed, ive seen Garys going at full chat and they do seem to go well...and sound proper 2T fit...
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Re: 300cc Kr1s Engine build

Post by podman »

Fab...

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

Post 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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martin
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Re: 300cc Kr1s Engine build

Post 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.
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martin
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Re: 300cc Kr1s Engine build

Post 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.
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500bernie
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Re: 300cc Kr1s Engine build

Post by 500bernie »

Lots of goodies there John 8)
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Binetta Steve
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Re: 300cc Kr1s Engine build

Post 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.

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500bernie
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Re: 300cc Kr1s Engine build

Post 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)
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Binetta Steve
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Re: 300cc Kr1s Engine build

Post 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.
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scooble
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Re: 300cc Kr1s Engine build

Post 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?
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Re: 300cc Kr1s Engine build

Post by Gerrit »

I'm not sure whether V-Force actually list those stuffers, Scooble, but BDK certainly do!
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500bernie
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Re: 300cc Kr1s Engine build

Post by 500bernie »

This is where all the magic is happening at the moment. .
Image

The Twostroke Wizard is working hard....
Image
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Re: 300cc Kr1s Engine build

Post by Gerrit »

I wonder what the bore is of these cylinders- 60-61 mm?
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