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Topics - Mick

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Lawn mowers / Top Tips
« on: November 30, 2018, 07:50:48 AM »
When replacing the gearbox on your lawnmower, always replace the clutch cable at the same time. Otherwise the life of your new gearbox could be shortened considerably.

Make this part of your routine.

Lawn mowers / Weibang 48V
« on: November 29, 2018, 11:16:16 PM »
Changed the gearbox on a Weibang 48V today. Fairly easy job apart from getting hold of the correct clutch cable to go with it.  UK distributor supplied the gearbox and cable together but the cable is completely different from the original, and it doesn't fit. 

It reminded me as to why I don't like repairing Weibang machines.  :(

Blowers and Vacuum Shredders / Stihl Blowers eating diaphragms
« on: November 24, 2018, 06:28:28 PM »
Seems the Stihl BG 86C-E blowers and SH 86C-E vacuum shredders like eating pump diaphragms, had five of them over the last few days, with exactly the same problem.  Think they need to rethink the material these are made of.

This problem is guaranteed to wreck the crappy recoil starter on thee machines. Trust me.  ;)

General Discussion / Black Friday Deals
« on: November 14, 2018, 09:50:12 PM »
Some of the Black Friday Deals from around the web.  Check them out, or post some up in here if you spot some.

Black Friday Deals at

Black Friday Deals at

Black Friday Deals at Argos

Cordless Power Tools / STIHL recalls STIHL MSA 161 T
« on: November 14, 2018, 12:00:51 AM »
STIHL recalls STIHL MSA 161 T arborist chainsaw

This recall concerns chainsaws with serial numbers from 438 089 138 up to and including 439 360 915.

The units concerned cannot be repaired. Owners of a STIHL MSA 161 T with one of the above serial numbers are asked to no longer use these saw, but to hand it in immediately to the STIHL dealer from whom they bought the machine. Read more.

Lawn mowers / Variable speed verses fixed speed
« on: August 19, 2018, 09:41:56 AM »
Think the manufacturers should rethink the whole variable speed idea on their mowers.  The new systems that the likes of Hayter, Viking (Stihl), Cobra, and many others are now using is a complete mare. A load of unnecessary moving components that ware out even when a majority of people only use it in one speed.

In my opinion for reliability they should supply a speed kit.  A larger or smaller front pully with matching belt.  Once fitted will be a much more reliable system.


Diy Tutorials and How to's / Carburetor Adjustment On Pro Saws
« on: July 23, 2018, 06:35:49 AM »
Carburetor Adjustment On Pro Saws

General Discussion / Warranty when using Alkylate based fuel mixes
« on: July 21, 2018, 07:01:04 PM »
Noticed Cobragarden has decided to throw warranty out if using Alkylate based fuel mixes with at least one of their chainsaws, there might be more than one model.

Just wondered if anyone else has seen other manufacturers doing the same.  I'll quote the Cobra Technical Bulletin below:

Cobra Technical Bulletin:

Factory tests have shown the Cobra CS620 Chainsaw's piston and cylinder are overheating and becoming damaged when used with Alkylate based fuel mixes (e.g. Aspen). This can cause the engine to fail.

This model should only be run using a 40:1 petrol/oil mixture.

You will invalidate your warranty if you use Alkylate based fuel mix with the Cobra CS620-20 petrol chainsaw.

Lawn mowers / Belt guards
« on: June 23, 2018, 12:53:59 PM »
Have you ever seen a belt guard / cover on any lawnmower that doesn't fill up with grass and cause problems.  You'd think in this day and age one of the manufacturers would be able to crack it.

Lawn mowers / Ariens Razor Belt
« on: June 23, 2018, 12:31:10 PM »
Had two of these Ariens Razor pedestrian mowers in over the last week, both with the drive belt fallen off the crankshaft pulley.  No other signs of damage.  I figure these were not set up properly from day one. (Cable adjustment) and the belts were running so loose when you released the drive lever they flipped off.   

Will keep an eye out now the belts are refitted, and adjusted, and see if cures it.

As a side note:  I'm guessing the removable portion of the belt guard, the bit around the front pulley could be slightly closer to the pulley, or run slightly more parallel to the pulley to prevent this happening, as long as there's enough room for the belt to break away for clutching.  Belt on both machines ended up on top of the crankshaft pulley.

Chainsaws and Pole pruners / 2018-06-18 Recall: Sanli - Chainsaw
« on: June 23, 2018, 11:14:25 AM »
SANLI Chainsaw, Model SCS 4950 Product Recall.

The following notice has been issued by the European Commission:

Category: Machinery
Product: Chainsaw
Brand: Sanli
Name: Petrol Chainsaw
Type / number of model: SCS 4950
Batch number / barcode: Unknown
Risk type: Injuries

The chain catcher is inadequate.

In the event that the chain breaks, the chain catcher could fail.

The product does not comply with the requirements of the Machinery Directive and the relevant European standard EN 11681.

Measures taken by economic operators: Recall of the product from end users (By: Importer)

Company recall page

Chainsaws and Pole pruners / Makita Product Recall
« on: June 23, 2018, 10:28:59 AM »
Makita Product Recall.

This recall applies to some Makita branded saws, and also some of the Dolmar branded saws. Check the link below for full details


Lawn mowers / Variable drive systems
« on: June 22, 2018, 06:01:49 PM »
So over the last few weeks I've noticed a shift in using a certain variable speed system, the one with a spring loaded split pulley on the engine crankshaft, and a variable split pulley on the gearbox adjusted via a cable.  I know Viking mowers have been using this for some time now.   Seems to be a pretty flimsy method of controlling the speed, and already I'm seeing problems with cables belts etc. 

It has other obvious flaws in its design, such as if the cable breaks it goes to full speed and stays there.  As the belt gets worn the machine gradually speeds up,  until eventually the belt gets so loose it stops driving.

So far the machines I've noticed using this very same system (or method) appear to be,

Viking / Stihl MB-VR and MB-V MB-VM
The new Hayter Harrier 41 375 and 376 series.
Cobra's new Variable drive roller mower.

Have to say in all the years I've been repairing this stuff, I'm not impressed by this at all.  ::)

So just out of interest, what other mowers have you seen using this system?

Chainsaws and Pole pruners / Stihl M-Tronic fuel solenoid
« on: June 14, 2018, 07:14:35 AM »
Part Number: 0000-120-5110

Fits: MS201, MS201C, MS201T, MS241C, MS261, MS261C, MS362, MS362C, MS441, MS441C, MS661, MS661C, FS360C, FS460C, FS490C, FS510C, FS560C, FR410C, FR410TC.

Lawn mowers / Just repaired my old Harrier 56
« on: April 21, 2018, 10:41:51 AM »
Noticed at the end of last year the drive on my old Harrier 56 was getting a bit lazy.  On closer inspection it appeared the pulley had tried to jump off the back end, and the idler arm did the usual and started to seize up.

Armed with a box of second hand parts, and back end duly removed and rebuilt, now working like a dream.  Just cut grass without a hitch.  Jeez, it's hot out there.   ???

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