Need help?


Search OutdoorKing by entering Key Words Below



Who's Online Now
2 members (Moss, Dandare), 100 guests, and 104 robots.
Key: Admin, Global Mod, Mod
Online Spare Parts


Online Store


Newest Topics
Lawnmower identification please
by rayray - 14/02/25 11:34 AM
Greenfield 34" vs 42" deck
by slowbuild - 10/02/25 11:03 AM
Victa Commercial 21" 850 I/C SP
by DFB - 08/02/25 08:25 PM
Image Generators make Mad Mowers.
by maxwestern - 07/02/25 11:52 PM
Topic Replies
Late Mode Victa 2 Stroke will not restart when Hot
by maxwestern - 17/02/25 07:27 PM
Victa Commercial 21" 850 I/C SP
by Tyler - 14/02/25 08:27 PM
Lawnmower identification please
by maxwestern - 14/02/25 08:24 PM
wanted victa 18 automatic side skirt and bolts
by maxwestern - 13/02/25 10:37 PM
Greenfield 34" vs 42" deck
by NormK - 13/02/25 10:07 PM
Victa 18 Project
by DFB - 13/02/25 05:25 PM
Still chasing template for Rover HD belt guard
by vint_mow - 13/02/25 03:00 PM
The Rover Pro-Cut Chronicles
by N1KK0 - 10/02/25 12:03 PM
Previous Thread
Next Thread
Print Thread
Rate Thread
Hop To
#112021 09/05/21 02:12 AM
Joined: Jul 2018
Posts: 2,095
Likes: 81
Tyler Offline OP
SENIOR TECHNICIAN
I have got a nice little quirk on an old Briggs that I struggle to understand whats wrong.

This is an old 1993 Morrison I use to mow the verge. Since there is small gum nuts, hidden sticks and other things hidden in the lawn, it is the only mower I use down there.

Has a bit of a rod knock and burns 30w oil, but not 15w40 (another quirk)

It has an alloy deck so I don’t have to be as retentive about cleaning it after use.


In the 2-3 years I have had it, its seen probably 15 hours use. Had probably 5 oil changes (to flush it muck out), new air filter and cleaned twice, primer, and diaphragm and shimmed the front axle. When it started taking 5 pulls to start, it got a new plug and now it goes first crack.

So I mow tonight, first pull starts, warm up 2 minutes, throttle down half and mow.

All good, finish and go to clean it.

The quirk:

If I EVER disconnect the plug lead, it will never start again; until you take the cowl off, unbolt the coil. Don’t have to clean it or anything; just loosen the bolts, stare at it and retighten them.

There are no cracks in the lead, splits, lamination issues with the coil, its all clean, the cooling fins are clear so its not cooking, the terminal and the plug is good.

Only once hasn’t it done it – the day I replaced the plug.

Button it back together and it will go first pull. Dare to remove the plug lead and it will need it again.

Usually, I don’t disconnect the plug lead due to quirk and just sweep out the LHS back (where grass piles up). But tonight I needed to get a bit of stuff off the blade holder.

I am sort of scared I will jinx it by typing this.

Doesn’t really bother me as its literally a 5 minute job with a socket set and a business card, and I could quite easily put another coil on, but it just baffles me haha

One of my favorite mowers - bit gutless, does the basics. Has had its deck blasted by 10,000 gumnuts (sometimes end up with 1/2 a catcher full) but it never lets me down

Will probably be a bit sad the day it sends the con rod out the side - hoping it hits its 30th before it does though (Sept 2023). Probably get another 30 years out of the deck though

Attached Images
P9270768.JPG (262.99 KB, 40 downloads)
Portal Box 6
Joined: Jan 2015
Posts: 1,521
Likes: 23
AVB Offline
SENIOR TECHNICIAN
Considering the age of the engine could very well be a worn exhaust valve and valve guide. I have replace several over the years where customers insisted their engines need rings.


As for ignition problem it can be a bad high tension lead (HV lead, plug wire) that an internal break. Something that seen a lot on old 2 cycles coils. These leads are replaceable if you got the patience to dig out the old lead. Here I replaced several lead already this where mice have chew them in two.


Moderated by  CyberJack 

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.

ShoutChat
Comment Guidelines: Do post respectful and insightful comments. Don't flame, hate, spam.
Newest Members
SGP, Kamran, Stephen Watt, PT095, Ryduncan
17,251 Registered Users
Forum Statistics
Forums145
Topics12,874
Posts106,060
Members17,252
Most Online2,545
Dec 23rd, 2019
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 7.7.5
(Release build 20201027)
Responsive Width:

PHP: 7.4.33 Page Time: 0.023s Queries: 20 (0.010s) Memory: 0.6672 MB (Peak: 0.7074 MB) Data Comp: Zlib Server Time: 2025-02-18 09:28:21 UTC
Valid HTML 5 and Valid CSS