sleeper06

Pressure test results ? Could have an air leak or a clogged circuit my advise is stop driving it till you test it blowing spark plugs out is a cry for help

Do a compression test , pressure test then pop head to verify dome size . That's like a 16:1 motor no way pump fuel is ok . You might have already hurt the motor

I was under the impression jsr was a good shop , the owner seemed to know his shit on the phone

I always rotate the clips so they sit half bottom half top

I was thinking that thing was screaming for help long before that plug burnt up

Backfire could be because of air leak or ignition components

95 is low, getting blow by on the rings for sure

How are you setting the floats. Tilting in an angle position till it just hit the spring on the needle lightly

They don't even look that terrible in the pics , huh.

Is there any other intakes that 3.8 mm from where they should be would worry me a lil , j don't have much experience with those engines

Your running 40:1 with the rite oil I'm not so worried about you but the op know nothing about his motor running 50:1 worries me . . My statement is also from the mindset of the guy building your motor I want lots of lubricant. I'm jaded . To the op are you sure it's a pump fuel motor

Hercalmighty is rite about checking compression it's good to know dome size and overall condition of rings. Is there port work? And to answer her almighty ? About oil . As some of you know I tnker quite a bit with banshee engines I've seen the insides of 100s of motors 40-1 and 50-1 ratios tend to share metal/ scuff /was cylinders. I'm not saying some of you don't have good luck with it but IMO it's ragged edge shit I'll get my hp elsewhere . It's also not for the average banshee owner who doesn't hAve a good ear for what his/her bike needs . I'll tell you I've seen many crank bearing failures on a amsoil dominator 40:1 on a cr-125 race bike , I bored the carb touched up ports , changed the head ran 32:1 same oil bike hasn't been apart in 3yrs and still sounds tight coincidence I'm not sure . The best looking inside of a motor I've ever seen was ran 32:1 on castor 927 , I built bike 6 yrs ago his compression dropped 6 lbs so I took it in for rering , when I popped it open it looked brand new and he rides it 10 hrs a week usually sometimes more

Quit running it 50:1 it's not a weed wacker

The other day a kid came to me with a peice of a pen used as a carb top adjuster because original broke off during a cleaning. He couldn't understand why It didn't run rite. Then I get into the carbs just for a look see and find the float held in by a cotter pin . Needless to say it runs good now with all the rite parts

Without knowing mods I couldn't tell you

I've seen vforce on tons of stock shit around here were the tips freyed and were they sealing good ( no light coming through)

Sometimes it leaks from the keyway groove in the primary. Check your crank seals, if it's none of that . Pressure test the coolant side to 16lbs maybe a head seating problem. Some say that's acceptable lose but if it's head it will get worse I don't let any motor leave me unless that needle doesn't move

Great to hear seen many of my friends fucked up thank god for my wife and kids , puts things in perspective. Now surrounding yourself with the rite people are key

I work on a fair amnt of bikes I'm in the habit of tapping the carb bowls with the back of s screwdriver a cpl of times to bang the floats around a lil. It aligns everything perfectly

1/4 drive metric sockets

Try a local machine shop , either way the proper way to do it is to split it , boil it out , pre-heat it then weld it

It's very hard to do effeciantly on a traditional set up unless someone has a trick I've toyed with some ideas if you wanna hit me up

And assuming you have no fibers and steels installed, if you feel like shipping your equipment to me I'll take a look at it on my mock up engine , just an option if your out of them

Both posters are rite I've no options a cpl of times and ran missing one, but I was using a stock head which I feel orientates thing a lil better than a mod quad head which happens to be junk

340 , 32.5 pilot needle 4 th clip if it acts sluggish and you go through all needle settings might need toomey needles