Throttle and choke linkage differ from OEM, but function fine.On my P3816, I had to snip off the end of the sliding linkage to clear the top cover.Otherwise a quality replacement.Many videos online about trimming the linkage and installation and fuel/air adjustments if needed.

Needed to replace my fuel lines and primer bulb. This entire kit was more cost effective and provided everything needed to refresh my chainsaw. The sparkplug did not work for me and there was a linkage on the carb that I needed to change out from my original. Overall I am pretty happy with this and it worked well.

I’m a weekend handyman - no real skills, but I can figure stuff out. In this case, it was harder to make sure I was routing the fuel lines correctly than to install the kit. Total job took less than an hour and the saw (a PP4218A that I have worked hard) started right up, no adjustments, and didn’t stall under load. For this price, I’m thrilled. Way more hose than I needed. Cons: air filter is too large (easy to cut); there is an extra gasket and fuel filter in the kit that is a little confusing; it would have been nice to find a new rubber plug for the fuel supply line in the kit.

Carburetor jobs are, by their nature, fiddly and unpleasant. You’re working in small quarters, dealing with small hoses, and things can get frustrating quickly. That said, this kit is exactly as described and fit my chainsaw perfectly. It came with plenty of fuel line, a fuel bubble that’s sturdy and will last a long time, an Oregon spark plug, and of course the carburetor itself. The adjustment screwdriver was surplus to my needs, but it’s good to have extras. All in all, a good way to spend your money, and a great way to give an old saw a new lease on life

This carburetor kit was what I needed to repair my chainsaw. It worked fine.

Not an exact fit but it will work. Took modifications to fit and was not set close to run. But, did finally get it to run as it should.

Installed easily with no issues, minor adjustments after I installed and chainsaw ran perfect with easy starting

When I hit the throttle, my Poulan 3816 tended to bog down and had no power. A special tool is needed to adjust carb, so I used a dremel to cut a slot into the adjusters and tuned it up a bit using a slotted screwdriver. It was better, but not great. When I tried to change the fuel filter, the line broke off in the fuel tank. Oh, good.Checked Amazon for chainsaw fuel lines and saw this complete kit --- with adjustment tool! Heck yeah! Some bad reviews were made by people who obviously didn't know much about small engines, and that helped to convince me to try this product. After all, I've had plenty of luck with cheap 4 stroke carbs on Amazon.I used both of the rubber fuel lines and probably have enough left over to fix another saw. Procedure: Remove old fuel line. Run fishing line through a fuel tank fuel line hole and out the filler neck. 12 lb test may do it --- I used much heavier line. Cut the new fuel line at a steep angle, so it has a long point on the end. Tie fishing line from the filler neck to the sharpened hose end. Pull the fishing line until your fuel line emerges, and continue pulling fishing line until there is at least enough fuel line to grab with pliers. Pull the line until you are happy with the in-tank length, then cut to the appropriate out of tank length. Repeat procedure with the other fuel line.As stated, I used both rubber lines which are indeed different sizes. Pay attention and use them in the right places or you'll have a bad day. The new priming bulb and a fuel filter were also installed without too much fuss. The new spark plug was mashed to a dead short and I didn't feel like digging out a gapping tool, so left the old (hardly used) plug in it.The carb is almost an exact fit, but the timing of the 2 barrels is handled slightly differently and looks like it'll wear out and cause problems quickly. No big deal. I tried it. As others have noted, a slight modification to the air filter housing is necessary else this thing gets hung up. Simple enough. The carb adjustment tool works exactly as expected, so I started at the usual 1 1/2 turns open with both screws and would adjust from there.After a good 20+ pulls with no joy, readjusted the screws to 1 turn open. It gave hints of wanting to start around 10 pulls, and eventually it cranked. I let it warm for a bit, then hit the throttle and it died. Several pulls later it cranked again, and I fiddled with the high/low adjustment screws. Had to give the idle screw a good 3 turns in to get it idling smooth. Hit the throttle and it died. No matter what adjustments I tried, it was always the same story: hit the throttle and it immediately dies. My pulling arm was very, very tired at this point.I compared the two carbs again, and it seemed the timing of the two barrels was a little off on the new one. (Opened the second barrel later than the original carb.) It looked possible to adjust the barrel timing on the new one, but may require dremel work on the linkage would definitely require thread locker to reassemble. Not having thread locker, I did what any reasonable person would do: reinstalled the original carb. It cranked on the second pull. A little adjusting on the low/high screws and it runs well enough to cut.A lot of people allegedly had luck with this kit, and some didn't. Upon reevaluating the negative reviews it seems that several experienced small engine people also had no luck. Bear in mind that with a kit like this you'll end up using a lot of parts before getting a chance to find out that the carb is trash. I am not the sort who tries to return a kit when I have used most of it, and since the original carb worked I did not bother asking the seller for a replacement carb.For me, this is a lesson learned. Sure Amazon has plenty of great, cheap replacement carbs for 4 stroke Briggs and Stratton motors which are used on many brands of mowers, snow blowers, tillers, go karts, etc. I expect great clones of such common items.I don't know if there's a major player making 2 stroke motors for a lot of brands or if most brands make their own, but small 2 stroke motors are far less common because fewer families have reason to own chainsaws and weed eaters. I can confirm that Zama made the carb on my mid 1970's Homelite chainsaw as well as the original carb on this early 2000's poulan. I can also confirm that this 'replacement for zama' did not work for me.