Couple questions on my first engine build. Some info i did not find with the search button. Hope this helps some other newbies as well. I'm working with a 31" (17hp to be exact) OHV Single cyilnder Non-Avs engine. Cheeta Cam from mike at precision Cams, EC Balnced crank, EC Milled head, EC springs/Retainers, EC roller Rockers, Mild port/Polish, ARC Rod and flywheel. Now i have talked to a few guys from heymow and they have enlighted me alot about what to do, but here a few things i'm unsure about:
- The stock plug is a RC12yc champion, atleast this is what was on the motor. Should i run this plug or does anybody find that an NGk or other brand works better? Cold or Hot Preference?
-There is alot of info about the EC copper head gasket on here, I wish EC could have put a note of preping the gasket in with the new gasket but when torque the gasket to 250 inch ibs; should you do this in incriments? If so how much of an incriment? or from hand tight right to 250 in lbs?
-When mounting the engine to the frame do yall use the stock spacers under the oil pan? Or mount it rite to the frame? Not sure if flex or tweak would affect the engine block.
-The stock engine Tins for my motor had 2 top engine covers, a black metal cover then brackets for a second Red top metal cover. Being Air cooled should i run both covers or just one cover?
-Walbro 56 carb- The fuel line inlet hose on mine is a very short brass fitting coming straight out from the carb body. This fitting is about a 1/4" long, not big enough to even fit my fuel line with a clamp, does this come off of the carb or is it missing something there?
-Lastly exhaust, I plan on running 1 1/8" ID from head to 1 1/2" ID to 1 7/8" out the side. Do you think this pipe is big enough to have a deep tone? Or is this to big of a jump in size?
Well thanks all for reading
Any info you have would be appreciated! Jim