KR-1S.co.uk Forum

What is the difference between 1s and 1r barrels?

Happy New Year Mark.

I don't have a clue, but are you racing at Snetterton in March?

Also happy new year to you Ben.

I would like to be there but don't know as yet, still not started work on bike and shoulder not right, also been very busy with work.

At moment I'm just messin with some engines and trying to sort through some boxs of parts I have, trying to id what parts I have and see if any bits are useable.

Have you sorted your motor and how did the CR box go.

Mark

Not a lot of difference between them timing wise. I believe the KIPS ports are wider. Some stuff here

http://myweb.tiscali.co.uk/teamsparrow/kr1rbike.htm

and here

http://myweb.tiscali.co.uk/teamsparrow/kr1stune2.htm

Exhaust ports look massive against std ones, but they have probably been worked.