Thought I share this fun video I did trying to get a 2 stroke to run backwards!
2 stroke running backwards?
- Thread starter Vintage Engine Repairs
- Start date
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That was pretty interesting. Was that a backpack blower motor?
Thanks, this was a strimmer engine.
I've seen it happen twice with motorcycles, once to me.
Nathan Bruce
ArboristSite Member
I have heard about that happening with detroits
Lanz Bulldog hot bulb engines are perfectly happy to run in either direction.
Any loop scavenged 2 stroke will run backwards, given the ignition timing is set pretty timidly. This was pretty normal back in the day for golf carts and mercury out board had an engine that gained the moniker of "dock crasher". Which did the same.
Uniflow 2 strokes are capable but should not be run for long as the oil pump, cam shaft, ect are running the wrong direction. if they fire off in reverse they need stopped asap. Detroit engines could be set up to run a forward or reverse configuration, but they required different parts to do so, for the above mentioned reasons.
Uniflow 2 strokes are capable but should not be run for long as the oil pump, cam shaft, ect are running the wrong direction. if they fire off in reverse they need stopped asap. Detroit engines could be set up to run a forward or reverse configuration, but they required different parts to do so, for the above mentioned reasons.
Check out the Polaris PERC reverse system......
Had a friend with a Bultaco trials bike that would sometimes be running backwards when you got it started. Had to pay attention when you let the clutch out.
Mine was a 360 Bultaco.
I had a Case S tractor running backwards after I completed an overhaul on it years ago. Started right up idled good, sounded better than it ever had when I revved it up. Proud of myself, my 1st complete teardown and overhaul by me alone. Went to move it out of the shed and discovered I had 3 fast reverse gears and 1 creeper forward gear.....
My favourite!
That is absolutely awesome!!!!
I saw it on dist bikes, goimg bacvkwads,,,,,no BS,,,,,,,
Had my 3406 Cat run backwards long enough to puke black smoke out the air cleaners.
Dropped the clutch and stalled it.
Dropped the clutch and stalled it.
Was common on old 020 and 031 with points when the timing was off .
Me too, a dirt bike kick starter got caught on my air hose while backing the bike out the shop door and started up and ran down the driveway in reverse till it fell over.
Coil
The motor cars we had at CN rail were 2 cycle hit and miss engines and you reversed the timer and the motor reversed direction and you backed up.To go in reverse you shut the igntion off reversed the timer lever and when the motor was on its last revolution you snapped the ignition on and sure as your uncles Bob you were in reverse.
Had it happen on a 1965 Snow Cruiser snow mobile with the 362 cc OMC opposed engine for you American boys the machine was the same as the Johnson And Evinrude Skeeter the motor was running on one cylinder and going up a steep hill and laboring she just about died and then coughed and ran in reverse I shut her down changed the one fouled spark plug and off we went in forward.
Kash
Had it happen on a 1965 Snow Cruiser snow mobile with the 362 cc OMC opposed engine for you American boys the machine was the same as the Johnson And Evinrude Skeeter the motor was running on one cylinder and going up a steep hill and laboring she just about died and then coughed and ran in reverse I shut her down changed the one fouled spark plug and off we went in forward.
Kash
StihlPotlicker
ArboristSite Operative
grew up riding 1976 honda 250 trial bike than the Beta Techno and Beta Alp, both 250's
