Need help?


Search OutdoorKing-Forum by entering Key Words Below



Who's Online Now
0 members (), 6,776 guests, and 230 robots.
Key: Admin, Global Mod, Mod
Online Spare Parts


Online Store


Newest Topics
Yardking crank case
by Spreefarm - 28/09/25 09:00 AM
Yard King Mower Manuals
by - 23/09/25 01:12 PM
Victa Identification
by RayNewt - 19/09/25 09:28 PM
Mowcart 66
by Willo - 19/09/25 10:41 AM
Ride on rover mower
by Laurie mowing - 16/09/25 02:43 PM
Topic Replies
Yardking crank case
by Bruce - 28/09/25 12:06 PM
Contessa fan
by mice_elf - 26/09/25 08:58 PM
Yard King Mower Manuals
by Muzho68 - 24/09/25 02:02 PM
Victa Identification
by maxwestern - 20/09/25 10:05 PM
Mowcart 66
by NormK - 20/09/25 12:07 PM
Hello from Vic
by mice_elf - 19/09/25 10:37 PM
Weekend find
by NormK - 16/09/25 05:35 PM
Ride on rover mower
by Laurie mowing - 16/09/25 02:43 PM
Previous Thread
Next Thread
Print Thread
Rate Thread
Hop To
#97960 22/04/19 09:28 AM
Joined: Nov 2018
Posts: 212
Likes: 6
Apprentice level 3
Hi everyone
I picked up 2 Villiers lightweight engines (horizontal shaft) that look almost identical except for some minor visual differences, can anyone shed some light on the 2 different model numbers are they the same engine but different years/series or is there a difference in specs such as bore and stroke. Trying to work out if ones better than the other as I I can make one complete engine out of the two, I know there was a 50cc, 75cc and 150cc how do you tell the difference?

Model numbers are
2100x
2105x

Thanks BS


I've got a highway to mow
Portal Box 6
Joined: Nov 2018
Posts: 212
Likes: 6
Apprentice level 3
I took the heads off today and measured the stroke and they both seem to have the same travel unless one piston is shorter than the other which I won't know untill I strip it right down. There seems to be different markings on the pistons heads as well as a concave dip in one of the pistons.

Piston markings are
2100x - STD 16 Flat piston
2105x - STD 15 (40404) concave piston

Any info or history would be great. Thanks

Attachments
IMG_20190424_093018.jpg (270.7 KB, 74 downloads)
IMG_20190424_093034.jpg (255.98 KB, 74 downloads)
IMG_20190424_093103.jpg (241.77 KB, 74 downloads)
IMG_20190424_093136.jpg (237.56 KB, 74 downloads)
IMG_20190424_093155.jpg (180.93 KB, 74 downloads)

I've got a highway to mow
Joined: Jan 2015
Posts: 988
Likes: 7
Qualified Senior
Hi BS,

How are you getting on with these Lightweights? This thread might help

https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/84426/VILLIERS_-_Lightweight_Horiz._.html

Would love one of these for my Villiers collection but they just don’t seem to come up in Brisbane.

Joined: Nov 2018
Posts: 212
Likes: 6
Apprentice level 3
Hi paul_c

I haven't really got stuck In to them yet, there on the backburner at the moment untill I finish off my current restorations and the 101 million jobs I got to do around the house. Still none the wiser if there's a difference with the two models, they do look almost identicle except a few parts. I'm thinking of taking a break after I finish these last machines then maybe get stuck into the Villiers when I get bored.

BS


I've got a highway to mow

Moderated by  Bruce, CyberJack, Gadge 

Link Copied to Clipboard
Forum Donation
These Outdoorking Forums have helped Thousands of people in finding answers to their equipment questions.

If you have received help, please consider making a donation to support the on-going running cost of these forums.

September
M T W T F S S
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30
ShoutChat
Comment Guidelines: Do post respectful and insightful comments. Don't flame, hate, spam.
Newest Members
Brodie410, Blake B, Camdawson, 1johno, 5thElement
17,603 Registered Users
Forum Statistics
Forums145
Topics12,999
Posts106,894
Members17,603
Most Online16,069
Sep 18th, 2025
OutdoorKing Showcase
20 Bucks from FB Marketplace
20 Bucks from FB Marketplace
by Return Rider, February 20
Victa Cortina 2 Shed Find
Victa Cortina 2 Shed Find
by Return Rider, January 25
My Rover Baron 45
My Rover Baron 45
by Maxwell_Rover_Baron, April 16
SHOWCASE - Precision Mowers - 2021
SHOWCASE - Precision Mowers - 2021
by CyberJack, April 14
SHOWCASE – Atco Rotary – Paul C - 2020
HOME |CONTACT US
Powered by UBB.threads™ PHP Forum Software 8.0.0
(Release build 20240826)
Responsive Width:

PHP: 8.3.25 Page Time: 0.033s Queries: 24 (0.028s) Memory: 0.6352 MB (Peak: 0.6755 MB) Data Comp: Zlib Server Time: 2025-09-28 21:49:29 UTC
Valid HTML 5 and Valid CSS