Timing and Hydrogen ICE fuel

[magifesq]

I purchased a little 75 cc pitbike (4 stroke) for my experiments - once I get it running on the alternative fuel, all I need to do is scale up the production.

[Hydro-Cell]

hi guys
i have a gx390 honda engine running on H2.

i have also had a smart car running on just h2 aswell.

on single piston engines watch out for the waste spark. if you need help on getting past it then pmme.  i have a 2:1 ratio gearbox on mine to do this, and the spark timing is set from the output gear.

[magifesq]

Thanks, I may have to take you up on that, this week I made a direct injection setup going to the cylinder to bypass the whole flashback issue.  Are those vehicles running on H2 or HHO?  Do you know if the rich O2 will greatly affect the cylinder head temp on a HHO booster?

[jadaro2600]

the real question is whether or not the vehicles are direct injection or carburetored [sp?].  There will be an affective difference when using H2 or HHO.