tried it on a 76 Merc with the Thunderbolt ignition...couldn't get it to run right. For some reason the throttle response suffered. Also tried it on my old John Deere pulling tractor...that didn't work out either. Don't know why, I figured the new automotive wire would have been better.?!

NO. No pins, no O-rings, just a plain bearing.

OK, OK...I need some input on a project, as my knowledge ends right here. I'm building a billet case for a 650 Kawi to possibly make a replica of Sam Sessions 75 PDC Kalamzoo Racer. ANYWAY, it's all done except the bearing surface for the crank. Given a bearing's size, what size do I need to bore th...

you probably won't even notice a difference. I used to race CRs, had a 250 and a 500 in 97. None of that******made made them run better really. I even used Pro Circuit Work Pipes on all my bikes. pretty much only because they looked cool! Did nothing on the 500, made the 250 have a little broader po...

Get it running good without the turbo on it first. This will give you a good baseline. When you build your pressurized intake box that mounts to the carbs, you're going to have to vent the carb float bowls into this box. This way, as the pressure in the carb venturi increases, the float bowl pressur...

These are the 71 Magnums we took to St Germain this weekend for the Snowmobile Hall of Fame show. The 600 was just finished up Friday night before we left. Could still smell the paint!!

[img]http://my.core.com/~twister76/IMG_0633.JPG[/img]

Freakin' concrete guy....!!!LOL 'Course, I'd pass by a few Polaris' to check out a pour too, I guess! :W

I pour concrete...foundations and floors!!!

Sled buyin has slowed down since I built a house...but I bought this Moto Ski for myself for X-mas this year!!

Well some builders believe that a fine rough texture provides a thin layer of turbulance on the edges of the port. Each scratch makes it's own vortex, and thus lets the rest of the fuel/air mix pass right by. Kinda like in the back of a pick-up truck...when your tail gate is up is makes a vortex of ...

Just to kinda add in here some tips for exhaust port shaping. You'll notice the exhaust port is angled down. When shaping the top of the exhaust port you'r going to want to remove only enough material to keep that downward angle. You don't want to cut into the roof a whole bunch if you're keeping a ...