cause i did today figuring i would deal w/ the slow take off until i could get my new belt tomorrow
well, when i was putting the belt back on i rubbed the pre lathe marks off the pully
long story short it takes me 2-3 blocks to get up to 20mph and i dont know what size belt to get to even it out
if anyone knows that would help me out alot
on a side note i got the needle to where i believe 42-43mph would be and the motor seemed to only be at half power
Eeeeh. 0.1" is too much to start with. I just added a note to that effect. .03" is all that can be removed from the older aluminum pulleys; I found is was a good starting point.
The thrust washers behind the pulley are about .03" each. Buy a couple and put them back in where the material was removed. Removing .03" at a time is adequate.
The pulley I ran with .1" removed did not work well. I just added it to my tuning pile until I built a more powerful motor.
i put about .045 back in between the pulleys and that helped a lot
still takes a while to get going but once i hit 15mph you can feel it kick in and it powers to 40 no problem
anyone have an idea as to how to get the clutch pulley off? i tried an impact gun and it didnt loosen
if i can get that off i can bring the old belt to the hardware/auto store and get one thats about .5' longer overall (thats kinda guessing) and hopefully i can get some power back
Does the SB50 have a 2 gear or 3 gear rearend? I think it's 2 gear, but I'm not sure...
I've never understood the point of getting the longer belt... technically it does the same thing as the ratio change up front, reversing it slightly.
You must have thrown a standard washer in there to get a .065" change. One note, DO NOT EVER run without the washer between the pulley and the crank. You will trash your crank that way; it will wear off the face of the machining. No idea why it happens, but it does.
Try some thinner washers. Seriously, you can tell a .01" change in the spacing up front. When you get it right you'll have your 40MPH top speed and the best launch possible with your setup.
well what im going to do today is make a bunch of different size washers .001, .005, .01 and play around w/ it tonight
also im going to get a new belt from grainger
the stock belt size is 628mm-11.4mm-30*
the replacement im going to get is 25"-.5"-30* thats .3L-.052W difference
yes i did just use some standard washers that we had here at work hopefully i can get it going right tonight
any idea how to get the clutch off w/o an impact gun?
but i made one like the other one today at work
and i was digging thru some stuff at work and found some die washers
they measure .502 id, .75 od, and come in the .01, .015, and .02" thick sizes
and i got a couple new belts one is 25"/.5" the other 26"/.5
ill start by moving the pulley back to stock and seeing if the 25" does anything and play around w/ it from there
