Disclaimer : Haven't bothered to search nor do i care to find out if anyone else has done the following.These are as far as i'm concerned except one are my own idea,since i was purposely looking for another way,especially the blades.
If you have the two blade disc.Put it back on & use rover 22" blades with masport bolts (hex head) & nuts & no tension washer (using domed bolts makes it hard to remove when it's worn down,can't grip edge in vice,including when the disc holes are worn & bolt spins,hex bolts solves that nonsense).What this achieves is .The blades are 3mm thick & last bloody ages.They withstand hitting bits of solid steel & anything else you feel inclined to wack that's solid.The flute is quite high so cutting & flinging wet grass into the catcher is not an issue & that grass can be shin high & your mowing lowish while it's raining.You can mulch with these also.
How i got onto this was through a custom made 24" mower i have that has similar blades except they have a longer drop down & i always wanted to put them on my honda , however they sat way too low.I then had a 560 rover,that's when i realized they had the blades i was after & that was real contracting blades.
You lot are going to like this one.
Pneumatic wheels on the rear of a 21" sp honda.Split rim type,i assume it was because that was the only rim small enough in height..The downside. I know who did the mod but can't find him.However i never forgot it.The tyre did sit a little higher than the original wheel but not enough to be a concern.The closest i got was using bike tyre attached to the original wheels to get more speed from the 2 speed honda at the time.I assume some turning perhaps a bit added to get the dog inside,the steel rim was required.
Dump that dam spring on the clutch bar or whatever you call it (can't be arsed looking at the parts listing of it's actual name) .Instead use a length of high tensile wire.If the wire is strong enough you won't need to twist the two ends together,instead just fold over so they face each other & come past a bit say 20mm (don't matter whatever mm or inches past). Crushing the sides so they come closer together is advised.
Alternatively : Kids here have those brass rings (about four of them) that are on a joined circle of round steel wire,i think that's what i'm using ??.It's around 2.5-3mm thick..You can use galv mild steel wire if that's all you have & twist the ends together so it doesn't come off..De-adjusting of the cable all the way is required,so you can tension it up as there will be some stretch etc..say goodbye to breaking springs as the wire will last quite a while & should be over a year if it's strong..No matter. You now have an option if a spring breaks & no spare
Weedeater with 4" solid ally disc:
Got ####ed off with my disc wearing on the ground & got tired of holding my brush cutter up .
Solution : weld a piece of steel solid or not,a decent sized nut or not to the bolt.
Make the added steel extend about an inch out from the disc face.Up to you if you want to grind it to give it a bit of rounding.It won't matter it will happen naturally as it wears (grinding or having a flat on the side of the added steel will be required to allow removal)
Why you ask ? why indeed ! i say..It will be a bit freaky at first,until enough wear has occurred as it will grab cracks n' such like,so be careful not to go to fast & be ready (you'll know once you try it what i'm talking about hahaha).However once it's all broken in,you can now place the weedeater head directly onto the ground without fear & watch how fast you can trim those pesky edges,without taking the wind out yourself..lol....You can now concentrate on weed eating,including angling..meh ! just try it you'll get the idea of why i like this
Edit: forgot to mention about the weedeater head bolt mod.It makes it easier to tie the nylon around the protrusion instead of an actual knot on the nylon itself when tied without the mod.This means loosening up the nylon is easier so you can continue weedeating without attempting to undo a dam welded piece of plastic & you will be able to slip the know down a bit more,to use as much of the nylon as poss.No i don't waste my time threading the stuff through the provided retaining holes,besides i assume like you i use as large as possible nylon so it won't fit anyway,besides knots are faster to get going again
Oh yeah ! when using a new ally head.Don't put it on straight away,you lot already know about the nylon breaking off yes ?
A drill is required
A carbide ball thingy that's on a short or long shank
Files preferably bendable & round
File std round
Using the drill & carbide tool.Grind a little ways head on into the inside orifices.You should now have a concave type look,there should be a grind mark on the base of the disc,you may need this to help get the nylon in later,i do due to a washer i need that's used as a spacer under my bolt & it's a wide washer.
Using the files,round the edges & smooth over,i can't describe here at to what point you can stop smoothing you'll have to judge for yourself
Do the same with the files to the outer lips,where nylon protrudes
This alteration takes the sharp corners away & you will no longer suffer breaking nylon or shouldn't do
Edit 2 :Honda handles breaking..This is those that are the old style like on the 2 speed
For the lower handle attached to the base..Place victa handle retaining clamps on either side & tighten up the nut.Place two stainless hose clamps either side of the nut on both sides & tighten
Upper handle to lower handle join : here i only use ss hose clamps on either side of the nuts on both sides,however you can if you like use victa retaining clamps here as well
Honda catcher wear in the corners at the ends.This is a bug bear of mine & ####es me off when they tear away,since have you guy's tried sewing it back together,dam that crap is hard to push a needle through..Anyway there comes a point it's close to replacement,you can get a bit more life by removing the bag & use an onion sack.Place sack over the steel all the way,then fold the front edge of the sack back,so now it's half way on itself.Place the catcher back on.It's a temporary fix for a holy catcher