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New engine for Scruff

Posted by : Neil (92.26.211.144)

Inappropriate or SPAM?
On Thursday 18/08/16 at 01:29:20

Scruff has been running his 142cc primary clutch semi auto for a number of years, carrying Cheri and I plus our luggage wherever we have needed to go. The only failure we experienced was the main bearings, but as this occasionally happens to stock YX140's, I don't feel too bad about it. However all this reliability isnâ€™t all itâ€™s cracked up to be if your passion is tinkering, which mine is. So I have decided to build a new engine for Scruff, just so that I can try out a few ideas. This time however I am going to try to build a 140cc primary clutch semi auto using readily available off the shelf parts without any modification.
I thought I would post my progress so that you see the failures as well as the successes. I have a plan in my head, but whether the parts will be compatible is yet to be seen.
Scruffs current engine is 57mm bore x 55.5mm stroke, my plan is to build a 56mm bore x 57mm stroke engine which coincidently are the dimensions of a YX140 engine, which I intend using to my advantage.
I'll keep you posted.
Happy Tinkering
Neil

Message Thread:

New engine for Scruff - Neil Thu 18/08/16 at 01:29:20

RE: New engine for Scruff - Neil Thu 18/08/16 at 01:41:49

RE: New engine for Scruff - Neil Thu 18/08/16 at 01:43:48

RE: New engine for Scruff - JohnS Staffs Thu 18/08/16 at 01:47:01

RE: New engine for Scruff - Neil Thu 18/08/16 at 01:52:15

RE: New engine for Scruff - Andrewwoey Thu 18/08/16 at 04:35:51
RE: New engine for Scruff - Harry Notts Thu 18/08/16 at 19:01:52

RE: New engine for Scruff - Neil Thu 18/08/16 at 20:29:05

RE: New engine for Scruff - Bogger Thu 18/08/16 at 21:13:08

RE: New engine for Scruff - Harry Notts Thu 18/08/16 at 22:05:08
RE: New engine for Scruff - Andrewwoey Thu 18/08/16 at 22:10:37

RE: New engine for Scruff - Harry Notts Thu 18/08/16 at 22:52:31

RE: New engine for Scruff - Neil Fri 19/08/16 at 00:42:18

RE: New engine for Scruff - Neil Fri 19/08/16 at 00:35:05

RE: New engine for Scruff - Andrewwoey Fri 19/08/16 at 02:42:51

RE: New engine for Scruff - Neil Fri 19/08/16 at 20:29:31

RE: New engine for Scruff - Neil Fri 19/08/16 at 21:09:57

RE: New engine for Scruff - Neil Fri 19/08/16 at 21:14:32

RE: New engine for Scruff - Neil Fri 19/08/16 at 21:31:00

RE: New engine for Scruff - Neil Fri 19/08/16 at 23:04:57

RE: New engine for Scruff - Andrewwoey Fri 19/08/16 at 23:51:29

RE: New engine for Scruff - JohnS Staffs Sat 20/08/16 at 01:56:35

RE: New engine for Scruff - H Sat 20/08/16 at 03:51:46
RE: New engine for Scruff - Neil Sat 20/08/16 at 03:54:17

RE: New engine for Scruff - Ady Sat 20/08/16 at 16:02:47

Annoying set back with Crank - Neil Sun 21/08/16 at 16:22:06

RE: Annoying set back with Crank - Andrewwoey Sun 21/08/16 at 17:05:24

RE: Annoying set back with Crank - Neil Sun 21/08/16 at 17:21:36

RE: Annoying set back with Crank - Andrewwoey Sun 21/08/16 at 21:20:23

Crank problem sorted. - Neil Tue 23/08/16 at 22:47:48

Cylinder heads and squish bands - Neil Tue 23/08/16 at 23:24:04

RE: Cylinder heads and squish bands - Andrewwoey Tue 23/08/16 at 23:51:34

RE: Cylinder heads and squish bands - Neil Wed 24/08/16 at 01:45:25

RE: Cylinder heads and squish bands - Neil Wed 24/08/16 at 02:26:19

RE: Cylinder heads and squish bands - Saltysnax Wed 24/08/16 at 03:05:57

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