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  1. O

    Reverse engineering ohv to be more like flathead

    Whyyyyyy?
  2. O

    Is an 8 degree timing advance too much for a stock engine?

    I have a bone stock Kohler 196cc engine, the RPMs are turned to 4,000 ignition is a single wire style non-digital. Normally I would toss on a 4, maybe a 6 degree advance key and call it good and not worry about it. Engine has been recarbed with a carb that has an adjustable air bleed instead of...
  3. O

    How do you cover your exposed velocity stack air filter?

    I have been using a Walmart bag and very long twist tie.
  4. O

    What do you do with the breather after installing velocity stack?

    I'll probably stick the hose under the foam outer cover for now then plumb it into the bend of the air filter elbow later. What do you do with it?
  5. O

    Does anyone make a metal or billet oil cap or oil return cap?

    I need a few oil cap thread adapters to 1/8 inch pipe thread. One to use as an oil return and another one to use as an electronic oil temperature sender holder. A thread adapter would be best if not a metal cap that I could drill out and thread for 1/8npt. If no metal then I can just drill out a...
  6. O

    Digital ignition coil? 4 degrees or more of free timing advance

    Alright I had always heard to gap the digital ignition coil 28 to 35 thousands. Never knew why, think I heard "it screws up the timing" and of course "it will rub". I checked mine it was at 28 to 30 thousands on my gx390. Put the cover fan shroud back on with 3 of the 5 screws. Then I drew a...
  7. O

    No advantage to running premium gasoline in a stock engine

    Confirms my long time observations. I like how he goes straight to a 12 degree advance key on a mostly stock engine and here I am playing around with 2 and 4 degree keys and thinking about maybe doing a 6 degree one.
  8. O

    Pressure washer for cleaning solar panels

    Clean solar panels smell like NOx and gasoline. Seems ironic... Increased compression, non-emissions Honda style carb #98 jet, cyclone air cleaner with cover off, ethanol free pump gas (no canned shtt here). Probably do go-kart style air cleaner, since it's a pressure washer and doesn't make or...
  9. O

    My new rebuild gx390 has very nice compression, why?

    I rebuilt my gx390 engine it was burning a ton of oil, as in fill it up and the low oil shutoff trips the engine off about an hour later. I used a new honda block, reused the crank, cam side plate, the usual stuff. But I used a "F188" piston and rod kit. Go-kart guys seem to like using these...
  10. O

    My go-kart is a pressure washer

    I don't have a gokart but have lots of go kart like engines. Honda gx200, clones, gx390, predator 459cc. If I Google search something about tuning, doing minor mods, small engine geek stuff on any of the above mentioned engines a lot of times I get links to here. It seems most people buy a...
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