








⚡ Power up your Stihl gear with precision and ease!
The Kuupo FS90R Carburetor is a direct replacement for Stihl part 4180 120 0611 (C1Q-S174), compatible with over 15 Stihl trimmer, edger, hedge trimmer, and pole pruner models. This comprehensive kit includes all necessary components—carburetor, primer bulb, filters, spark plug, gaskets, and tube—ensuring a smooth, professional-grade installation that restores optimal engine performance and fuel efficiency.




| Manufacturer | Kuupo |
| Brand | Kuupo |
| Item Weight | 7.8 ounces |
| Package Dimensions | 3.82 x 3.74 x 3.11 inches |
| Item model number | FS87 FS90 FC95 FS100 FS110 HL100 HL90 |
| Is Discontinued By Manufacturer | No |
J**E
Good product
Put on weed eater and it started right up didn't even have to tune it . Was a really easy fix
C**S
Great product
It works just right
D**S
So far so good
The carb arrived the next day as promised. I has read other reviews prior to purchasing this one. One review had said there was an idle speed issue after installing it. I noticed that the cable retainer end that attaches to the new carb was different than the original. If you use the new one, the throttle cable will be stretched out and will not allow the arm to go all the way back to low idle. This is a quick fix as long as you still have the original carb. Remove the small "C" clip from the original cable end and replace the one on the new carb. Works like a charm. I didn't use the enclosed green hose set, so I can't speak to that. As stated so far so good.
J**.
Bolts right up, runs and idles like new, with no tuning necessary.
My original carb was not reacting to any tuning inputs. Cleaned it, etc. Still nothing. This looks and and runs exactly like new now. No tuning was necessary. Bolted on, primed it, fired right up.
J**L
It installed just like the OEM.
Installed just like the OEM. The engine started right up without any adjustments or problems. The engine runs great, good throttle response and with good power. I recommend this product.
D**.
Repair
Good product thanks
D**G
Not worth the purchase
Purchased this carb kit on 11/10/24. After less than an hour's use, the high speed fuel mixture needed to be adjusted but found the carb fuel mixture cannot be adjusted. I wrote an inquiry on 3/14/25 asking "can this carb be adjusted and if so, how?" I have not had the courtesy of a reply from either Amazon nor the manufacturer. The kit came from China so probably need to say no more. It is hard to recommend a product when it does not function as intended and there is no customer service.
S**Y
Works good
Works good and as it should
Trustpilot
2 weeks ago
1 week ago