The 18hp Yard-Man Trailmower

i got the 18hp installed !! its so fast ! damn. lol


i tested it and i dont regret the swap at all ! i have to swap the front pulley again i want a little more speed and now i dont have to worry about having enough power..


i also noticed a crack in my transaxle.. i patched it with tape and filled it back up for now. i need to buil myself a new trans anyways.



the plumbing pipe exhaust ie very temporary (and ugly) and it will get remplaced with a 2to1 out the back style exhaust when i get some time to work on it again.

- swap in the opposed twin DONE
-wire up the engine, dual diode setup DONE but redoing it with proper connectors
-make up an exhaust, 2 to 1, with mufller
-relocate gas tank DONE but have to figure out how to get more gas onboard, bigger tank where ?
-battery boost system, anderson plug ?
-front bumper W front towhooks
-make the hood fit around the engine..
-headlights, nilights dual flood..
-check tranny, making sone nasty noises (almost cant hear the engine over the whining) maybe build another doc locked 800. ya........ gonna do that soon..
-add a 3rd battery ?
-buy and mount new rear tires
-read mud flaps
-front fenders
-swap an even bigger engine pulley
-belly pan, keep the sticks out of my belt..

Nice man! That oppy should give ya plenty of grunt haha. You got any ides as far as how you're gonna make the hood fit?

AllisKidD21 wrote:

Nice man! That oppy should give ya plenty of grunt haha. You got any ides as far as how you're gonna make the hood fit?

yeah its nice, i cant keep 5th gear trough the woods and its kind of insane lol.


ill have to cut the hood and skirts to fit around the the head tins, itll look kinda cool ! at least thats what i hope.. lol

Measure 3 or 4 times before cutting the hood.

If you leave some extra material where it is getting cut out, say you need to remove 2in to make it fit, leave like 1/2in then bend it out so it kind flares around the engine tin work. I think that would look pretty shnazzy.

I thought about doing that with the craftsman hood I have, but it has too many angles to deal with... too much work for me, but ti looks like maybe you could pull it off??

Rip trans lol. Like Beal said, measure a sh*t ton or you'll regret it. Or at least get the sides somewhat symmetrical.

Is that a Mudlite I see??? A pair of those would be sweet on this thing...

RichieRichOverdrive wrote:

Rip trans lol. Like Beal said, measure a sh*t ton or you'll regret it. Or at least get the sides somewhat symmetrical.

Is that a Mudlite I see??? A pair of those would be sweet on this thing...

yeah ill have to measure alot. if it comes out ugly ill just get another hood.

yeah thats a 25x11-10, not going on this thing, god the tranny wouldnt survive a minute with these, its going go to on my roper some day...

i got these tires with a free suzuki 4wd quad the other day..  lots of usefull parts !!


yesterday i took the trans out, and i found out why have a crack in my trans, the bearing that supports the gear that drives the bullgear, destroyed itself, causing the gear to rub against the case and eat its way trough.  


glitter goo ! probably parts of the case and the bearing, no visible wear on the gears.



this is the new trans, still a 800series but with a better casing, this one has enclosed ends for more of the shafts, so its better suited for an oil lube conversion..

Open ends... no wonder that bearing grenaded.

wellllll.... all of the 800series transaxle i have are bad. they all grenaded the output pinion needle bearings.. so, for now i just shoved a brass bushing in there. lets hope for the best, but i remember that when i doc locked my trans it had that slop, so if it lasts another 5 months ill be happy.


new traanny, nastyness. i reused my clean gears and cleaned up the case halves.

yeah there should be needle bearings between that shaft en the gear..

all cleaned up, ready to be put back in the tractor.


i am getting a mst205 to remplace this trans. going to have to doc lock it, i give up on the 800s, they are beefier on paper but in reality i keep finding broken ones..

got the mst 205 !

got the parts i needed to do a proper exhaust.. stack !



The new MST, once i doc lock it its going in !

today's mess

Shop dog

Probably going for a small short stack like this.

i like the stack better than the ''sideways'' stack..




-wire up the engine, dual diode setup DONE but redoing it with proper connectors
-make up an exhaust, 2 to 1, with atv mufller
-relocate gas tank where ?
-battery boost system, anderson plug ?
-front bumper W front towhooks
-make the hood fit around the engine..
-headlights, nilights dual flood..
-add a 3rd battery ?
-buy and mount new rear tires
-rear mud flaps
-front fenders
-swap an even bigger engine pulley or smaller rear ?
-belly pan, keep the sticks out of my belt..
-Swap in MST205 after i doc lock it.
-voltage regulator ?

Lookin good! I'm not much of a stack person, anymore. Don't want hot stuff puncturing me if I roll my tractor lol. You finally gonna do axle supports with this mst? lol

And the more speed the better

RichieRichOverdrive wrote:

Lookin good! I'm not much of a stack person, anymore. Don't want hot stuff puncturing me if I roll my tractor lol. You finally gonna do axle supports with this mst? lol

And the more speed the better

yeah i dunno i really like the look of the stack, it would be shorter than in the pic tho.

and yeah eventually i want to make some axle supports but before that ill reinforce the frame so its no a priority..

Yes stacks can be a skewering hazard, but you also have the exhaust fumes in your face. I think that would get old pretty quick?

So duals is always good... oppys need duals...

TheBeal wrote:

Yes stacks can be a skewering hazard,  but you also have the exhaust fumes in your face. I think that would get old pretty quick?

So duals is always good... oppys need duals...

yeah donno, i never flipped this tractor and i do pretty crazy crapp with it.. the only tractor i flipped is my electric one because the front end is really light..
and no right now i have the exhaust almost where it would be if i had a stack and i cant really smell the fumes.. plus ill be aiming the pipe away from me, but im not sure i might lay it on its side like doc had on mule 2, or like fearless has on the sears. originally i wanted it to go under the footboards and out the back but i dont have enough space to stick a pipe between the tires and the frame.

Do you had a big hammer? these work great for making room!

TheBeal wrote:

Do you had a big hammer? these work great for making room!

they dont work on tires.. trust me i know

Oh right.

That twin looks pretty good in there. What tractor is that with the 12hp power built Briggs?

MatthewD wrote:

That twin looks pretty good in there. What tractor is that with the 12hp power built Briggs?

Just a craftsman parts tractor i got for the mst 205. Its in parts now. Kept the good stuff and threw away the rest..

to do:
-wire up the engine, dual diode setup DONE but redoing it with proper connectors
-make up an exhaust, 2 to 1, with atv mufller
-battery boost system, anderson plug ?
-front bumper W front towhooks
-make the hood fit around the engine..
-headlights, nilights dual flood..
-add a 3rd battery ?
-buy and mount new rear tires
-rear mud flaps
-front fenders
-swap an even bigger engine pulley or smaller rear ?
-belly pan, keep the sticks out of my belt..
-Swap in MST205 after i doc lock it.
-voltage regulator ?

didnt work on it much lately but i got ro ride it alot this week.

and i broke it.. the cheapo tie ro ends i used didnt hold up. good thing i, going to princess auto this weekend ! gonne get some proper heim joints to make a stronger tierod.

also gonna have to reinforce the steering arm.

HA, I didn't realize that was you over in the Garage. Careful with those ruts! @RichieRichOverdrive and @AllisKidD21 broke steering too.

Wonder if you can upgrade that to a heim?

mightyraze wrote:

HA, I didn't realize that was you over in the Garage.  Careful with those ruts! @RichieRichOverdrive and @AllisKidD21 broke steering too.

Wonder if you can upgrade that to a heim?

yeah was me !

lol gotta have a weak point at least its not the steering gears thats broken !

yeah im going to make 2 new beefy tie rods with proper heim joints.

Or you could use the joints off of old automotive sway bar links! Haha, that works pretty well.


But heim joints would probably be easier hahaha.

AllisKidD21 wrote:

Or you could use the joints off of old automotive sway bar links! Haha, that works pretty well.


But heim joints would probably be easier hahaha.

yeah and i dont really have acces to any of those

Yeah, that might make it a bit difficult haha.

today i fixed my bed steering arm and the broken tiw rod.

i made a new reinforced steering arm out of 1/4'' flat stock

used an original piece with some reinforcement






FINNNALLLLLLY made to tailights guards, after breking 4 or 5 lenses..



oh ! and immediatly after i fixed the steering. i went for a test drive, tried to do donuts, tyres hooked up and threw me off... destroyed the steering wheel, so i remplaced it..

the new steering.. actually the original one !




still have alot to do !!

to do:
-wire up the engine, dual diode setup DONE but redoing it with proper connectors
-make up an exhaust, 2 to 1, with atv mufller
-battery boost system, anderson plug ?
-front bumper W front towhooks
-make the hood fit around the engine..
-headlights, nilights dual flood..
-add a 3rd battery ?
-buy and mount new rear tires
-rear mud flaps
-front fenders
-swap an even bigger engine pulley or smaller rear ?
-belly pan, keep the sticks out of my belt..
-Swap in MST205 after i doc lock it.
-voltage regulator ?
-steering stops

That steering arm looks good! Shouldn't break any time soon. Looks like that old steering wheel is pretty tweaked hahaha.