Hotater--
I would REALLY like to see those videos!

Scott--
Try Google Video, they host it for you
http://video.google.com/videouploadform

Makes video sharing easy!

Once it's uploaded just insert the hyperlink into your post

.. as for the injector firing every other time... why don't you mark the flywheel with TDC and crank the engine... the injector should "fire" every other time the piston comes to the top of the stroke..

I already did that, (actually, I used the camshaft) and I know the injector should fire, every time the crank handle comes around, but it doesn't, only every other time, and at lower throttling every third time, will have to check for air I guess......

if it's really dense, then something still is wrong.  I'd still suspect injection timing, but if you've already done that . . .

You might try pulling the injector, hooking it up to the fuel line and watching to see how the fuel is sprayed.  It should be a very fine and even spray with no dripping before or after the main spray event.  It's entirely possible one of our Indian friends dropped the injector prior to installing it.

Yes, our Indian friend Mr. Ashok Tank was kind enough to send us another injector, piston rings, seals, and camshaft, via Air! The service we got can't be complained about. But the new injector made no difference.....and the old one's spray pattern was good, nice and even, misty, etc. We usually run at about 190 degrees or so, judging from appearence it doesn't seem to make much difference, I think maybe I should look at the injector timing perhaps? Where should the timing be?

Hi Dutchman,
Check out these mods I made to the piston... It helps a bit with the smoke...
you are correct about the fuel making it's way onto the inside of the cup... not good for complete combustion... I also have been working on some injector ideas like squiting the fuel onto a deflector for better atomization ...

this article I find extremely interesting, just check out that combustion chamber shape! http://www.sonexresearch.com/prod.html

Also, here's a video of the thing running, you will doubtless notice that it's not under load, but here again even under medium load it reduced just to the point of where you could see the difference.
http://video.google.com/videoplay?docid=-8125627003936673255

We have a petteroid 3.5 that we purchased recently, after cleaning the sand out of the crankcase, overhauling etc we tried to fire it up and couldn't be started without starting fluid. After lots of fiddling and expermentation we retarded the the whole camshaft a notch, which works out to about 6-7 degrees. Now it starts and runs nicely but smokes, not an awful lot, but enough that it's bothersome. We fiddled with the valve lash, it made a little difference,  but not much. We thought it might be a lack of oxygen in the cylinder (e.g. intake timing?) but that doesn't seem to be the case. We even put a new camshaft in but that didn't help any either. Now just lately I was told by someone that the injector squirts fuel too close to the cylinder, or on the piston/cylinder walls, where it just sits and smoulders instead of burning like it should, therefore the smoke.

Are there more people with this problem? I heard it's just how they do, you can't fix it. It seems to me there has to be a way to make them burn cleaner, all that smoke and unburnt fuel going out the stack goes against my grain!

I also saw that fattywagonman modified a piston (on the 6/1?) to make it burn cleaner, did anyone else do this too? If so, what results did you get? IMHO it seems to me that might be worth looking at.

I was checking out fatty's EGR setup, very interesting, where are you with that by now, fatty?