pablopab50 Posted August 28, 2015 Report Share Posted August 28, 2015 I just received 573M06800 pistons. Domes are supposed to be 69mm 21cc. I don't see any spacer plate in the box. Crank from hotrods is supposed to be 4111. I think something is wrong. I thought for long rods I needed 795M06800 pistons... Please help me out Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted August 28, 2015 Report Share Posted August 28, 2015 The pistons you have are blaster pistons. The 795's do not come in the 68mm bore size so guys use the blaster style. The cylinder is cast with the proper geometry to not need a spacer plate or stepped domes. Quote Link to comment Share on other sites More sharing options...
mike0chek Posted August 28, 2015 Report Share Posted August 28, 2015 yup i thought the same thing when i built my cub years ago, you have the correct parts. Quote Link to comment Share on other sites More sharing options...
pablopab50 Posted August 29, 2015 Author Report Share Posted August 29, 2015 Allright boys. What jets would you recommend for 421 fully ported for "trails" Shearer small bore, air box lid removed, ground sea level, Pro Flow by pro design with their special K&N air filter, 35MM PWKs Quote Link to comment Share on other sites More sharing options...
pablopab50 Posted August 29, 2015 Author Report Share Posted August 29, 2015 Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted August 29, 2015 Report Share Posted August 29, 2015 165 main 50 pilot cel needle 4 th clip Quote Link to comment Share on other sites More sharing options...
pablopab50 Posted August 29, 2015 Author Report Share Posted August 29, 2015 165 main 50 pilot cel needle 4 th clip So I keep the "stock" needle I have? I think I have a dynojet power jet kit on my stocker now. Just set it on the fourth clip? Quote Link to comment Share on other sites More sharing options...
mike0chek Posted August 29, 2015 Report Share Posted August 29, 2015 160's probly with your setup, 165's might be a bit too much on top but its better to be rich while tuning. Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted August 29, 2015 Report Share Posted August 29, 2015 165 main 50 pilot cel needle 4 th clipIn your opinion as a builder. If I am doing a high dollar build and was having a CP mono jug ported, would I be having to high expectations to expect the little casting nubbies at least be sanded off? Just curious, if it's common or not and wondered as I'm taking the plunge. Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted August 29, 2015 Report Share Posted August 29, 2015 Allright boys. What jets would you recommend for 421 fully ported for "trails" Shearer small bore, air box lid removed, ground sea level, Pro Flow by pro design with their special K&N air filter, 35MM PWKs165-168 mainDyno jet needle? From stock carbs or for keihin 35mm PWK's 55ish pilot. Quote Link to comment Share on other sites More sharing options...
pablopab50 Posted August 29, 2015 Author Report Share Posted August 29, 2015 165-168 main Dyno jet needle? From stock carbs or for keihin 35mm PWK's 55ish pilot. For stock carbs. Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted August 29, 2015 Report Share Posted August 29, 2015 No! Do you have the needle that came with the PWK's? Quote Link to comment Share on other sites More sharing options...
pablopab50 Posted August 29, 2015 Author Report Share Posted August 29, 2015 No! Do you have the needle that came with the PWK's? I haven't looked yet. I'll let you know tomorrow morning. Quote Link to comment Share on other sites More sharing options...
375hp banshees Posted July 21, 2021 Report Share Posted July 21, 2021 ...Still waiting Aids Quote Link to comment Share on other sites More sharing options...
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