Lawn Mower conversion , Single to twin cylinder
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Uploaded by Hunwick9 on Apr 26, 2010
This video shows a single cylinder 2 stroke lawn mower engine converted into an opposed twin cylinder engine
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Uploader Comments (Hunwick9)
All Comments (62)
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sounds like a mini snowmobile lol
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OK...U da man... I want to rid my 67 model 2 cyl., 20 HP, Merc OBM of points and fit it with electronic ignition. Ideas?
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ur now double fast lawn mowing? Be honest :)
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I smell bad and I'm very uncomfortable in social situations. Great video!
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Thanks. I understand that, but there would be a 'rocking couple' because of the offset between the rod centrelines. I guess it is not revving very high so not an issue. Pity Victa stopped making its twin.
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this is awsome but is there a way to get the config so that the two cylanders are in more of a V shape, i plan on mounting this in a bike if i can + reinforcements obviosley
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Just wondering what the vibrations levels are with the offset crankpins ?
VHZMH 1 month ago
@VHZMH Because each crank is 180 degrees opposed, each crank including crank pins cancels out any vibration.
Hunwick9 1 month ago
I am currently fitting a single reed valve to the crankcase instead of two inlet ports.
Hunwick9 2 months ago
Thanks for your question. There isn't a "How to" manual on building one of these, but i intend posting some more videos soon outlining a bit more info on how it goes together.
Hunwick9 2 months ago
Thanx for your comment.I'm glad you are aware that Victa produced there own twin cylinder version. I have three of them , but they don't produce anywhere near the HP that my 320 cc twin does :-)
Hunwick9 3 months ago
No I didn;t have to machine the existing crank case halves . The only machining was done on the center adapting block.
Hunwick9 4 months ago