Hipa MS 290 Carburetor for STHIL MS290 029 MS 290 MS310 039 MS390 039 MS 310 MS 390 Chainsaw parts replace 1127 120 0650 HD-19

I have a 15 year old Stihl MS310 that was on its original carburetor. Not bad considering I didn't always usenon-ethanol gas. Draining the fuel and running the saw until the carb runs out of fuel always helps with that when you're not using your saw for a while. New carburetor seems to work fine out of the box. I didn't adjust the high and low, but I did adjust the idle down a little bit. I used the air filter, fuel line (carb to fuel tank), and fuel filter, but I skipped the rubber hose from carburetor to engine (I cleaned the original one and put it back because the new part looked too different to me), the bar oil filter (hard to get to), and the spark plug (I had a new one already). On my saw, I did have to remove the orange plastic casing which also required me to remove the muffler assembly and side cover where the pull cord is just so I could remove/replace and reinstall the 2 rubber lines from the carb to fuel tank and carb to engine. If you're just replacing the carb, you won't need to worry about taking all that off. You will need to original black rubber piece that goes around the carburetor air intake port (where the air filter pushes on to the carb) so don't throw away your old carb before getting that off. The chain saw sounds better now and is very responsive compared to the old carb. With the old carb, I was having bogging problems, but the new one fixed that. I may bring it to a Stihl shop to have them check low and high settings, but it seems responsive when I pull the throttle and sounds right at the top of its RPM. Worth the money to use this replacement if you've tried cleaning your old carb and it still doesn't run right.

I installed this on a MS290 Farm Boss from around 2005 model year. I ordered a genuine Stihl carburetor on Ebay but it was stolen in delivery so I figured I would try this one. Normally I avoid imported knock off parts but lately I've found the carburetors to be great and the OEM ones don't last either with the lousy fuel these days.I installed it and it fired right up. It did need adjustment for ideal throttle response and idle but the saw responds very well to the mixture and idle screws on this carb. I'd argue it has more adjustment range than the original and that could be due to EPA rules, not sure but I don't recall the original being able to be leaned out as well on idle. My saw always liked to flood a little when really hot but this carb fires up perfectly on hot starts. The lightest pull and it fires back up, I'm loving it.For those who aren't familiar with this type of carburetor let me explain how to tune it. The carb has two mixture screws side by side (H and L) and the idle screw (LA) below those. Try to start the saw and if the idle is too high back off a little until the chain stops turning or just turns a little starting and stopping.Once it idles at a reasonable speed test the throttle. If it is crisp with no bogging you may be done but you can turn the L screw clockwise or counterclockwise to see if you can increase the idle notably. If you notice that the L screw can impact the idle adjust it to raise the idle, then lower the idle with the LA screw. What you are doing here is getting the mixture as optimized as possible during idle. So tweak the L, then back off the LA. At some point it will be most optimal and purr while maintaining crisp throttle. You want to try to do this alternating adjustment of L and LA to get maximum smooth idle.Next step is to adjust the H screw under high throttle. You want to get it so that it screams but is smooth, but be careful, you don't want the H at the most lean setting because you can oil starve or over rev a 2 stroke. So tweak this, then back off a bit below the maximum speed you can reach. As a general rule you shouldn't run any two stroke full speed for extended time. Stihl makes great engines but you can hurt them if they run very lean at high RPM for an extended time.Last thoughts. If your saw doesn't start up immediately after installing the new carb turn up the idle a couple turns first and try starting it once turning the L screw quarter turn one way, then quarter turn other way from wherever it started. Remember where the L screw started and try different settings in and out going 1/4 turn more or less. Eventually you will find the sweet spot and you can start from top of the process above.Happy chain sawing

Bought this for the carburetor, rest of the parts for spares. Delivered on time(always a bonus).Seems like a good product, bolted on nicely, missing the shoulder for the adjustment grommet on my saw reused the grommet for the air filter. Started up within normal range for my saw, three pulls on prime two pulls on semi choke and up and running. Warmed up and idle was good high speed was good, turned idle down till chain stopped. Turned off sat for a few minutes and started right back up. Couple of cuts and all seemed good. Will see how long it lasts. Would recommend!

Good product fit my chainsaw.

This carb works great, with no adjustments needed. Chain saw runs like new.

Easy install - less than an hour. Products were exact fits. Saw started right up - my son had left it outside for over two years..., so to say I was very pleased is an understatement. This work would have cost close to ,$200 at a saw shop...

Easy to replace after watching a few YouTube videos. It took quite a few pulls. Finally flooded it and had to hold the trigger with a wire in the run position to get it to fire up. Once started it was like new.

I had no intentions of using the carb or spark plug, but thought it was still a good deal for the fuel tube and filter, breather, and pulse tube. Unfortunately, the only parts that fit were the fuel tube and fuel filter. The grommet on the pulse tube was significantly larger than the original and the breather wouldn’t even line up on the carb studs. The fuel line is so soft it kinks and prevents fuel from reaching the carb. Looks like I wasted my money on this one.

Everything you need to tune up the saw.

I got this carburetor last April and just got around to installing it today. Well my saw had been acting up for a while before that but I haven't really need it until now so I just left in the garage and forgot about it till today. So anyway I just changed out the carb and had to do a little adjusting and boy does it ever run good. I'd say it hasn't ran this well in years, my ears are still ringing...lol. But the air filter that came with the carb doesn't fit the new carb. There's an air intake manifold on top of the new carb which my old one didn't have. And the new filter has an opening in it that is supposed to fit over this intake manifold. But I could get the filter opening to line up properly with the manifold, so I just used the old filter. I also didn't bother changing out the fuel line, pulse line or spark plug that came with the new filter as the ones that I had already seemed okay. I just did a straight carb swap.

The carb worked great, responded to adjustment at low and high settings. Idles good mid range and full throttle is good after a slight tweak. Very good! Air filter works ok fuel line too loose of fit threw it out, I was specifically after the carb don't count on the other parts. But it was worth buying.

This included everything I needed to get my old saw working like new.

Easy to install and works well.