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A 1985 3HP very well could have been cast-sleeved or an all-aluminum "koolbore" block but 100% on what you say as far as the koolbores go, their trash engines in my opinion and parts are not interchangeable, and this entire thread would be alot of bad info as myself and others assumed it was a...

I hate this answer, but unfortunately it's true; however, many get jammed up here as well with crankshaft specs.

All day, every day, then they take it to us and have us give an answer they don't like and dont wanna pay. You know the suicide rate of mechanics ( based on auto repair) has massively jumped since COVID? This is probably why across all forms of repair.

Machine shop probably about $150, a little cheaper if you do the finish honing. It can be done with a Lisle rigid hone, and I've done it on more than a few Tecumseh engines, V-twin inteks, and even a Vanguard V-twin. Its a long day its alot of work and you need the tools to make it straight or...

You, sir, are 100 correct. Ethanol-blended fuels are less efficient; this is a proven fact. its leaner and contians more oxygen molecules this too is a fact. People will say "well drag cars use it" yes, they do at 100% ethonal and air fuel ratio adjusted accordingly. they also rebuild their...

6 years sober Im not very religious nor do I do meetings. I probably should, I have read the book twice, and I do like the AA concept, millions that it worked for, it can't be wrong. I needed to hear that today. and Im yanking ropes as hard as I can to get back to the country living, its a lost...

This is very typical of the old FH series. (Very nice engines by the way part of why they fail almost to good) Lots of good answers yes check your filter sort of normal yes your pulling oil but from where??? Worn valve guides and seals is typical on the Fh. Having choke on essenialy closes off...

Lots of good answers. most of which right on the money. end of the day all orfices inside any carb need to be free and clear, wie, torch tips, wifes/mothers sewing needles, carb cleaner, micro drill bits (dont break it in the jets). Those Subaru engines were amazing, probably why parts are...

rings is not a bad place to go on something like that but probably not the main cause. engines of that era and in genral tend to loose the oil rings and run fine on the top ring just smoke some. valves and valve clearance was most likely the true issue also common also some service bullitins and...

Husqvarna/ayp YTA 24V48

Rotary is a great place to start for aftermarket parts. If you wanna be a dealer, American-made with American steel blades and filters, also available in gator style. and most pulleys and idlers are OEM for Husqvarna MTD products. as for JD parts, good luck. I use Hartville Hardware for OEM JD...

put them to .004 and verify the correct main jets. you have a left and a right and wouldnt be th first time ive seen high altitude jets put in. you also have 2 diodes that can cause issues like that between the coills unplug them and see how it runs

Check your valve adjustments. sounds like they are tight zero clearance and probably hard to start both hot and cold due to mavrick air being sucked in making it super lean. as the engine warms up cleances tend to open a bit and valves wil seat. belive clearances should be .004" on all four...

I mowed lawns for 20 something years and now have a repair shop from exmarks to scags to Craftsman not a one of them needs you in the seat. Nor should you jump start your tractor and mow your lawn it's a good way to fry your regulator and or stator. And will apply to all out door power...

Those are tapered bearings for starters, but think you figured that out I just skim read. Thats a nice set up. almost pro grade. Yes the seals come out and should be rather generic Seals can be bought by size many times, size is listed right with OEM part numbers. Depending on how the mandrel is...

Intake manifolds are different lengths on either side of the carb to compensate for this. If you're referring to the newer Happy Homeowner JD tractors and zero turns running single barrel Breaks and scrap em engines the older ones pre 2021ish benefit big time from a larger updated part number...

True on the turns, yes bit of a quality control thing also a price bracket thing. coils are coils with a primary and a secondary other then their physical appearance they work the same with the same stuff inside them go price a coil pack for a Buick leSabre not much of a difference price wise...

replace both coil packs with 21171-0740 left white plug used to look like the right one until it got washed with fuel. this assuming inatke is attached that cylinder isnt running hot for some other reason, valve adjusts, head gaskets, debris etc be willing it even runs on that cylinder (power...

💯 Infact from what I can tell I'm the only one that's ever heard of valve spring shims. Again engines are engines there's an odd misconception small engines are in a different category. Yes you want the spring compressed they even last longer that way. Now it is just a small engine yes it will...

I enjoy reading the back and forth on this stuff. Quickly as a shop do it the right way and this only due to save our bum from lack of service and neglect. As a shop for myself that changes his oil uses API rated CH-4 cj-4 or CK-4 oil 20w-50 and cleans his cooling fins id drive the pin in ream...

If you have a black and red wire on a single plug, that's the most common on all your happy homeowner tractors and is Briggs dual circuit both AC/DC stator. DC is achieved by the use of a simple diode (in the black shrink tubbing before the engine side plug). This set up is most common and also...

you got some wrong info too much clearance on your exhaust valve is what's causing "too much compression" and it's not that it's too much it's just not hitting the compression release set intake (aluminum push rod) to .004" that inches. set exhaust (steel push rod) to .006" INCHES......oil in...

Regal red all in spray bombs

Engin mod# 143.999005

I actually do well on these machines Ill I'm in a money area everyone in the area has money but me. I'm just looking to get a model number or close to it. I know parts are close and interchange between alot of things but happy homeowners do not so they like mod numbers and paper, Ill snap a...

I buy and sell some small equipment and small things like an operator's manual and mod # are deal-breakers. This is an older machine

Did you get any answers on this? I right now have the same piece of equipment in front of me. I do have a carb but it leaks. I replaced o ring, float, needle valve and seat, I just want a new carb at this point. I too have done lots of looking and have come up with a $50 replacement or discontinued.