1. gwoods27

    H70 Lighting Coil

    Looking for a lighting coil for an H70 points engine. Anyone know the part #? Can the same coil be used on other engines, like HS50/40 or H60/50 etc…
  2. FunWithStuff

    Tecumseh HS40 Oil Dip Stick?

    Hello! I was wondering what Tecumseh oil dip sticks would work in a 1974 HS40 model. The parts diagram for my engine has a dipstick depicted, but no part number available for it. On the engine I have, both sides of the sump cover just have the removable plugs on them to pour oil in, like when...
  3. FunWithStuff

    Tecumseh Minibike Muffler 33128-A

    Hello! I am looking for a used or new old stock Tecumseh Taylor mini bike muffler with a type 100 spark arrestor screen and the part number 33128A. Anyone that has some and is willing to sell one I would be glad to purchase one. Thanks!
  4. Bbqman

    MTD Columbia

    Hello, new to the group. I just picked up an original 361-520 MTD. It does not run. I am looking to restore with my grandsons. I want to keep as original as possible. It is missing the air cleaner and element. Tires are shot. Motor turns over it is a HS 40, seat is incorrect it looks like. I do...
  5. gwoods27

    WTB Tecumseh/Rupp HS40

    Looking for a lighted HS40 for a Rupp roadster 2 with the 3” shaft
  6. B

    71’ Speedway scarab torque converter removal

    Hey guys, first time posting here, ive got a good amount of small engine work under my belt. My uncle gave me a ‘71 ish speedway scarab with an hs40 on it to clean up. I pulled everything off of it and have been bringing them in to work (machine shop) to clean up. The only part is the damn last...
  7. O

    Hs50 high compression copper head gasket

    Does anyone know the thickness of the old high performance copper head gaskets for Hs40s back in the day? The ones that increased compression. I am looking for something similar for some upcoming hs50(and hs40)builds.
  8. 1970 Rupp Roadster HS40

    1970 Rupp Roadster HS40

    Crank 1970 Rupp
  9. 1970 Rupp Roadster HS40

    1970 Rupp Roadster HS40

    1970 HS40 side cover w/crank
  10. Tecumseh engine restore

    Tecumseh engine restore

  11. Tecumseh engine restore

    Tecumseh engine restore

  12. tecumseh_hs40_for_cat


  13. myjunk

    Tecumseh HS40 engine 1968? $60

    I'm not sure if its a 1968 or 78, at any rate it is what it is. It turns over but I didn't see spark. You are buying it just the way I found it. Look at the pictures and email me if you have any questions. $60 plus shipping from Mi. Thank you
  14. W

    Will a HS40 crank in a H35

    Hi all, Will a crankshaft out of a Tecumseh HS40 work in a H35? Both came out of Rupp min bikes. Thanks, Bill T
  15. David wulf

    Tecumseh HS40 slanted intake

    I have a rupp TEC hs40 slanted intake for sale 50.00 shipped.
  16. markus

    Late model piston/rings vs old style (HS40 rebuild)

    Currently building up HS40's and wanted to note a change that Tecumseh made regarding pistons and rings. In later years Tecumseh started using thinner rings. The piston size on an HS crossed with some of the OHH engines (as does alot of other internals) so they offered that piston/rings as an...
  17. danford1

    1981 used Tecumseh 4hp, HS40 for sale, $125 plus shipping

    I bought a 81 Sears Green Streak from a swap meet to build to a customers specs. The bike came with the original Tecumseh 4hp HS40 on it. It had spark and compression and would run if some gas was dribbled in the cylinder but the carb wouldn't let fuel in. I installed a diaphragm carb from a...
  18. Rhodyjoe

    Tecumseh HS40 Engine For Sale

    Tecumseh HS40 - 55290B Engine For Sale Located in Franklinville, NJ 08322 Selling for $150 or highest offer - Nice condition - 3/4" shaft - Serial # 0268 12466 - Originally on a Rupp mini bike - Needs recoil start (good recoil spring, but does not engage crank) - Strong...
  19. Not so mini bike

    Rupp hs40

    It was sitting in a Pyle of rupp parts where I bought it from. Older style. Has Rupp tc driver and and guard bracket still on engine. Has mini bike throttle and exhaust adapter. Aluminum flywheel and 3" long 3/4" crank. Has spark and compression. No shroud. $75 plus shipping.
  20. RobertC

    What is the mini bike correct carburetor for my HS40 ?

    Hello Folks, I am not finding the original carburetor that my hs40 had on it before someone replaced it with a 'bulb' primer model....:doah: I see all sorts of stuff out there available for hs40's, I just don't know how to determine which would be best for mini bike application. What is the...