I ve started this on a better titled post as I believe this should be read, This is something everyone should try and regardless what you have there will be a change in smoothness of motor, QUOTE:
Well this current fully Mod completely new" SHR 880", has everything under the sun possible ,Run this setup last year as well and its a Powerful Mountain Motor, the crank is trued and straight.less than .0005. My clutch was balanced years ago[Perks} and I replaced all bushings /cup O -rings Arm bushings everything, Weighed each arm/ ramp and balanced.I have run around 100 different setups testing arms springs combos,ect. so thought Id send it to perks to check balance with my current proven favorite Mountain setup. So I boxed her up.taped shut and took to the local hardware store to get -er done just because have time before snow flies.. Something wasn't sitting right and in the back of my head ,something told me not to ship it,been putting this off for over a week., Didnt really sleep and first thing in the morning I grabbed the package before UPS arrived.I keep thinking that if a crank is 100 grams out of balance which I believe is grossly exaggerated , However I buy the fact that its probably not perfect or far from it. I also believe the balance changes under load due to a laboring motor. Started Wondering about indexing the little out of balance of clutch and out of round to offset the crank. So i took a center punch and on the end of crankshaft marked TDC on PTO.Then started to index the Tra arrows first at One -O Clock and run it without a belt ,noting the smoothness, Proceeded at 2 then 3 ect.I found that at 8 o clock this motor went completely smooth ,No movement at all from idle to 8000,at "3 "it shook. Hmm. could one be able to off set the crank balance with this method. I prove it can be done , surely there are limitations ,and now have an alignment mark on Tra to match Crank mark..Anal or just an as-hole,My X wife has suggestions. However this works. Has been suggested to align the removed Tra weight area to 2" O clock and mine shook there. Not much but noticeable.If the Clutch is Zero-ed and balanced why would this matter,It must change as the sliding half shifts and the out a Round will increase vibrations.this is worth a try and the smoothness was substantial.This will effect every motor and its smoothness,Some more than others.like to hear results from others who try this
Well this current fully Mod completely new" SHR 880", has everything under the sun possible ,Run this setup last year as well and its a Powerful Mountain Motor, the crank is trued and straight.less than .0005. My clutch was balanced years ago[Perks} and I replaced all bushings /cup O -rings Arm bushings everything, Weighed each arm/ ramp and balanced.I have run around 100 different setups testing arms springs combos,ect. so thought Id send it to perks to check balance with my current proven favorite Mountain setup. So I boxed her up.taped shut and took to the local hardware store to get -er done just because have time before snow flies.. Something wasn't sitting right and in the back of my head ,something told me not to ship it,been putting this off for over a week., Didnt really sleep and first thing in the morning I grabbed the package before UPS arrived.I keep thinking that if a crank is 100 grams out of balance which I believe is grossly exaggerated , However I buy the fact that its probably not perfect or far from it. I also believe the balance changes under load due to a laboring motor. Started Wondering about indexing the little out of balance of clutch and out of round to offset the crank. So i took a center punch and on the end of crankshaft marked TDC on PTO.Then started to index the Tra arrows first at One -O Clock and run it without a belt ,noting the smoothness, Proceeded at 2 then 3 ect.I found that at 8 o clock this motor went completely smooth ,No movement at all from idle to 8000,at "3 "it shook. Hmm. could one be able to off set the crank balance with this method. I prove it can be done , surely there are limitations ,and now have an alignment mark on Tra to match Crank mark..Anal or just an as-hole,My X wife has suggestions. However this works. Has been suggested to align the removed Tra weight area to 2" O clock and mine shook there. Not much but noticeable.If the Clutch is Zero-ed and balanced why would this matter,It must change as the sliding half shifts and the out a Round will increase vibrations.this is worth a try and the smoothness was substantial.This will effect every motor and its smoothness,Some more than others.like to hear results from others who try this