![removing primer bulb on 3.5 hp tecumseh engine carburetor removing primer bulb on 3.5 hp tecumseh engine carburetor](https://i5.walmartimages.com/asr/617417cc-213c-4a3e-bc02-f3475d9b23e6_1.d49796383f63a8124f03c609545bb1da.jpeg)
(Usually you only do this when the float in carb. (The gas tank must be able to gravity feed the carburetor) I had a similar situation with a car one time.ĭid everything, finally replaced the needle seat in carburetor just for the heck of it. You would want one with enough filter in it and when installed that it would not raise the hose level very much. I've read (or been told) that these will not work due to the additional resistance they create on a gravity fed system. I put an in-line paper type filter in the rubber gas line. The screens in these may not be fine enough to prevent the screen in the gasoline jet from plugging. The in-line (spinning top shaped) filter (if you have one in the rubber gas line) is really just a strainer (fine screen). off engine, although you're probably real good at it by now! (no gas) All you need to do is poke a hole through screen with small nail or drill, clean with spray, and re-install jet.ĭon't even need to take the damn carb. and start engine it will run, try to pull gas from tank, RE-SUSPEND this dirt which in turn plugs against screen inside this jet, and thus stalls engine. The dirt drops down into a recess within the passageway so you cannot see it. (A small white plastic molded part with a passageway through it) You blow through it, look through it and its clean, right? Wrong. Inside, behind this screw, is the high speed jet. )Īll you have to do is remove the large flat headed screw on side of carburetor. I did absolutely everything (cleaning passageways, checking flatness of top and bottom mating surfaces of carb. Once you fix the problem, you'll agree that it actually is a pretty clever design. (Runs for a few seconds and then stalls out) It has the cast aluminum carburetor with no adjustments. I had the same problem with a craftsmen lawn mower. I fell guilty for not sharing this earlier. Thank you to every who has posted on this thread! It's amazingly rewarding to get an otherwise dead engine going with one pull of the starter! Are these holes supposed to be alighned?ģ) I've connected throttle linkage to the throttle lever (turtle/bunny lever) and the governor spring linkage to the middle (of three) holes on the throttle shaft lever. A couple of questions:ġ) how tight should I be socking down the bowl nut?Ģ) there are two tiny holes in the bowl nut and two tiny holes where the nut threads into the carb. I tried putting the old washer back on but it still leaks. Almost like the the gasoline dissolved it or something. No luck! I pulled the whole nut off and noticed that the washer seemed to be eaten a bit. I thought I might have over tightened it, so I tried backing it off a bit. The second problem is that the float bowl is leaking out the bottom (through the highspeed bowl nut. When I move the lever between turtle and rabbit I see absolutely no movement of the govenor. Obviously I don't quite have the right hook up between the govenor and the carb/butterfly and turtle/rabbit lever. When the mower is running it's running really fast. I made a best guess, put a couple of cups of gas in the tank, primed her up and she started on the FIRST PULL!! I reassembled and installed the carb but apparently have forgotten how the throttle linkages were connected. I purchased a carb kit (tecumseh #631021B) (needle valve, seat, float bowl gasket and washer), a carburetor gasket and a new length of gas line. My question should I also replace the bowl, float and primer bulb too? If so, is there a complete kit for this (like the Tecumseh #730235B) assembly or do I have to buy individual components? Finally, are there any tips/advice for someone that's mechanically inclined yet hasn't actually performed a carb rebuild? Thanks in advance! The kits seem to just include a highspeed valve, spring(s) and gasket.
![removing primer bulb on 3.5 hp tecumseh engine carburetor removing primer bulb on 3.5 hp tecumseh engine carburetor](http://www.tecumsehcarburetorguide.com/wp-content/uploads/2014/01/Screen-Shot-2014-02-15-at-17.22.16.png)
I have been able to find other kits for the motor. with a Tecumseh Float Bowl Assemboy (Tecumseh #730235B) but I can't determine if this will fit my engine. Someone else suggested replacing the whole float, bowl.etc.
![removing primer bulb on 3.5 hp tecumseh engine carburetor removing primer bulb on 3.5 hp tecumseh engine carburetor](https://i.ytimg.com/vi/RZ1DVEHKNFg/maxresdefault.jpg)
Also, the primer bulb leaks has resolved itself but the engine still won't stay running. The engine is is a Tecumseh 3.8hp engine (sold on a circa '93 Craftsmen 3 in 1 mower). I've replaced the plug and cleaned the carb (by spraying carb cleaner while the carb was attached). Engine will only stay running if the primer bulb is pumped or depressed. Wow! I had to check the post that michaeljp86 wrote a while back to see if I had posted in myself.