SUPER BANSHEE 2 stroke engine carb sync & test ride!

[@StupidFastJohn]

Hey guys if you are looking for the tool i used in this video go to ebay and type in carb sync tool, a bunch will pop up 🤙👊 mine was for volkswagen carb but works fine!

[@AndyHayes1]

Stupid Fast hey bro I watched a few videos after this and never heard what you found out about the extra smoke out of the right cylinder what did you find out? I have a similar issue except it’s my left side smoking way more. My smoke is normal blueish 2 stroke color no black. Thanks in advance if you reply. Liked and subscribed

[@StupidFastJohn]

@@AndyHayes1 carb sync fixed mine brother 👊✊ thanks for watching if you ever need anything dont hesitate to ask

[@MichaelSabo]

This video... it good. People watch and get good feelings from. Service to world. You are a good person.

[@StupidFastJohn]

Thanks Mike! Much appreciated brother 🤙👊

[@99milesaway41]

Man, I just can't get over how badass banshees sound.

[@StupidFastJohn]

Thank you man seriously!!! I love it too 🤙👊

[@99milesaway41]

@@StupidFastJohn heeeeellll yeah brother

[@StupidFastJohn]

@@99milesaway41 🤙👊🤙👊

[@stephenscott4019]

Very Smart, Stupid Fast... having an engine running in a enclose area, with poor ventilation.

[@StupidFastJohn]

With both big bay doors open* but nice try chiefton 😏😉

[@goldenwheeledbanshee9160]

Love that build of yours an it should be faster than the word of God. Love it!!!!

[@StupidFastJohn]

Thanks Barry! Thats what im hoping man!!! 🤙👊

[@Nubian_King]

Good job man she looks good cleaned up

[@StupidFastJohn]

Thanks man cant wait to try out the new jets and upgrades in the next couple vids, she oughtta be ripping again 🤙👊

[@FourthWayRanch]

it looks like an accurate tool, probably better than the motion pro for doing two stroke engines with,

[@mcsbikelife3829]

Enjoyed the vid just a tip for the future if your messing with carbs clean your bike first easy way to suck dirt, also when washing never start right after also a good way to ruin a motor trust me I learned the hard way. Now I have airbox covers and exhaust plugs. Once I wash I clean and make sure all is good and dry then start. With the filters you run it’s really important to make sure they are dry and you can blast dirt through them on accident with power washer. With as much cash as you have in the motor it would suck losing it over something silly. Not being a know it all just trying to give tips to avoid what I went through with my banshee. I had a similar build on a 96 for silver lake sand dunes. It was really close to yours just a tad smaller. Anyway keep ripping I like your content

[@StupidFastJohn]

Thanks brother much appreciated!!! Always take information in man 🤙👊🤙👊

[@johnpowers4348]

The vacuum tool. Part number details????

[@djmystery7235]

I think there’s a really good chance that the crank seal is blown because it is burning a little white and transmission fluid burns white.

[@djmystery7235]

It’s either that or the amount of sealant put between the case halves

[@StupidFastJohn]

@@djmystery7235 it didnt smoke this bad until after the mishap with the head gasket though. Leak down this week an well see whats up 🤙👊

[@djmystery7235]

Stupid Fast oh yeah, I forgot about that. It could just be coolant in the crank case.

[@StupidFastJohn]

@@djmystery7235 i tried to get most of it out maybe there is some left who knows hopefully clears up? Lol

[@djmystery7235]

Stupid Fast if there is it will probably not end too well for the crank bearings. Depending how much there is.

[@hseriesonlymonctonnb1181]

Black smoke is from it running rich

[@StupidFastJohn]

But why only one cylinder? The left has to be firing? It sound good?

[@StupidFastJohn]

@waaaaazzzzuuup i know im just challenging people to see what theyre thinking yah know

[@StupidFastJohn]

@waaaaazzzzuuup good point! Ill check both this week and see whats up yah know 🤙👊

[@67stang65]

I just started my 421 build with cp industries serval cub cylinders and 35mm keihnin carbs. What would you recommend for carb settings jets etc for my start up? Thanks

[@StupidFastJohn]

Jet sizing is going to be more dependent on your elevation above sea level, you will have to do some searching and try to find someone with a similar setup to your or at least carb size and sea level and copy n paste it or just do it the old school way and do some plug read and adjust as neccessary 👊🤙

[@67stang65]

The sync tool you're using is it the empi brand one or the latest brand one? I want to make sure it fits in the 35mm keihnin carbs. What carbs did you use your sync tester on? Thanks!

[@StupidFastJohn]

The sync tool i used on my 38mm and it was just one random one from ebay lol and they do sell adapter ends for them! 👊🤙

[@nateherbst1138]

It looks like the crank seal is definitely bad, I would do a leak down test. Still sweet tho:)

[@StupidFastJohn]

Yessir definetely going to do a leakdown this week and check the seal out! Thanks brother 🤙👊

[@reggiexp69]

damn 8 months still no video? banshee still alive?

[@StupidFastJohn]

Finishing the video this weekend 👊

[@reggiexp69]

@@StupidFastJohn eehhhhh nicee :)

[@hondaguy425able]

What is that gauge called that you used to sync the carbs? I have a banshee that won't start unless you spray starter fluid at the filters even when its warmed up. It also wants to die out when riding. Any idea what could be wrong?

[@StupidFastJohn]

Sounds like clogged pilot jets or wrong size (too small) not giving her enough fuel or even out of sync. It is called a carbureator synchrometer 🤙👊 the one i got was for a volkswagen, they work amazing on banshees!

[@StupidFastJohn]

@waaaaazzzzuuup i gotcha but these carbs each have there own choke? The carbs are identical theres no difference between them, each choke is om the left each idle screw is on the left etc. etc. Does that mean the same?

[@250race]

Do a leak down text and find out if your crack seal is out. Your right pipe smokes bad. Did you ohm your wires and plug caps yet?

[@StupidFastJohn]

Im goimg to do a leak down test and ohm the plugs n wires this week, i did however switch the wires on each plug with no difference just for a quick idea yah know. Thank you for the help it is much appreciated! 🤙👊

[@250race]

@@StupidFastJohn I'm a cr250 guy in the mini sprints. I've done about 30 mottors. Ok now on the 250 on the trans side we have a shaft collar that goes around the crank Now if this collar has a groove say if you can feel it with your finger nail it needs to be replaced. This will asked like a bad crank seal. So the trans oil will get in your crank case. And 1 more thing do not use cheap seal stay with Stoke seal. Water pump and crank seals. Did you get number drill bits from Harbor Freight to check your main Jets to see if they are both the same size? Just throwing any out there that it could be. Get something together for you guys to run Trailways Linda's Speedway Lanco and I'm sure there's other micro tracks out there just talked to the promoters Lanco

[@StupidFastJohn]

@@250race yes the aftermarket tz crank bearing does have a collar on her. Maybe she ate through the seal. Ill check that out this week on my leakdown etc and i have to find a set of drill bits thats actually a good point man! Is lanco a track??

[@250race]

@@StupidFastJohn If your shaft collar has a Groove in it that you can fill with your finger now it acts like a blown crank seal Check your shaft collar. I had a motor high compression 310 PSI that would last one night and then the next night out I would blow the crank seal I dealt with this for about five races before I inspected fat shaft collar. After I bought a brand new one the problem went away. My collar was 45 bucks. Go back with stock crank seals. Love your videos bud

[@250race]

@@StupidFastJohn Yes it is Look it up it's a dirt oval. Talk to the promoter to see if you guys can go out there and hot lap. I recommend you getting a smaller left rear tire so your quad will turn. Race car language means stagger. This is just a fictitious number. Here's a little left rear needs to be about 5 in diameter smaller than your right rear. This is called stagger so your car or quad will turn

[@benwhisman1232]

Hey do you know why the left pipe would be smoking way more than the right?

[@StupidFastJohn]

Carb sync or bad crank seal most likely 👊

[@benwhisman1232]

@@StupidFastJohn okay thank you for responding. It's my first one and I bought it about a week ago

[@benwhisman1232]

@@StupidFastJohn is it difficult to change the crank seal? And would you suggest to do anything while I'm there

[@StupidFastJohn]

@@benwhisman1232 yea you have to split the cases to do it but seals failing are a normal part of repairs. I would recommend if you do the crank seal to just get an entire seal kit and do the entire bottom end

[@benwhisman1232]

@@StupidFastJohn okay thanks. Hey would that be the problem if it has almost no power in higher gears?

[@hot_top_1686]

That bike has a nice crisp popping sound what exhaust is that

[@StupidFastJohn]

That my friend is an old school r1 rocket exhaust system. You cant buy these anymore lol but theres always some somewhere for sale!

[@StupidFastJohn]

Also thank you! 🤙👊

[@hot_top_1686]

They would look good powder coated but my banshee don’t have nothing for that maybe my raptor does lol

[@Sleeper_Banshee]

You are using the wrong adapter to sync your carbs, it’s the bigger one that meets up to the OD of the carb mouth, take the small end off

[@StupidFastJohn]

I know, hellcat channel filled me in thanks for the heads up though!

[@thatonerepairguy4784]

Was them silencers new ? Have your repacked them since head issue could be burning coolant off in the packing if not ya looks Ike a crank seal is in your future !! It’s only money man better than driving down the road and throwing it out window

[@StupidFastJohn]

Im with yah 100 percent man! Thats a great point! I never thought of that. They are not new, i will check them out for sure thanks man! 🤙

[@thatonerepairguy4784]

Stupid Fast ya np man been working on 2 strokes all my life and it’s cool to see someone else from pa

[@StupidFastJohn]

@@thatonerepairguy4784 absolutely! Ive been at it for about 20 years, those silencers are actually old school rocket r1 pipes that they dont make anymore. Did you see the talk of the shootout/bbq party we are doing? Hope to see you there!

[@bmjca123]

Yoo your vw one not the best. I would buy the motorcycle cynic tool it goes a lot higher on the vacuum scale so you can zip tie throttle and sync at high rpms. I strongly recommend setting up a fan to blow air on your radiator while tuning your bike especially if your setting throttle at high r. Every time I’ve done this anset the idle it’s always off around the high 40s on the meter and can still be fine tuned at the high rpms. Adjustments need to be in 20 second intervals to let the bike to catch up with mixture

[@StupidFastJohn]

Good tips man much appreciated 👊🤙

[@marvisblockum1327]

What brand of carbs are you running ,I need some 30mm keihin carburetors

[@StupidFastJohn]

Thats what im running the keihin pwk series 39mm carbs 🤙👊 i love keihin i reccommend them!

[@rideordie2736]

@@StupidFastJohn what's your jetting on the kehein carbs and was the problem the cream seals or no

[@katanovsky]

where can i buy the carb sync tool?

[@StupidFastJohn]

I got mine on ebay, just type in carb sync tool, i tried to post a url in my description but ebay wont let me copy the url 🤙👊

[@katanovsky]

@@StupidFastJohn Thanks for the answer. keep up the good work

[@StupidFastJohn]

@@katanovsky no problem man thank you!

[@FadedbyJay]

The jetting still off on the pilot?

[@StupidFastJohn]

I dont think so? I went from a 60 down to a 52. Mike is running a 50 i believe and hellcat channel around the same. It takes 2 to 3 kicks to start sometimes with choke now, before it was first kick no choke. Definetely a difference 🤙👊

[@FadedbyJay]

Right on, just sounded a little choppy to me but hey I could be wrong wouldn't be the first time

[@StupidFastJohn]

@@FadedbyJay i know the main was definetely wayyyy to fat because she wouldnt open up. Otherwise i think shes ok on the jetting but wont know until plug chop 🤙👊

[@shaunholden7633]

Can someone pls tell me what a plug chop is ive been around 2 strokes an motors an all since i was in diapers. But i dont know what a plug chop is.

[@willymhustler]

Check out south Texas banshee. Kevin goes into great detail. It will tell you if you are too rich or lean.

[@StupidFastJohn]

@@willymhustler is correct, me and michael sabo plan on doing a video around plug chops if you stick around and keep an eye out! Its basically just reading the color of the electrode to determine whether you want to up your jetting or go lower during different throttle ranges etc. Theres more to it but thats a basic run down. Its called a "plug chop" because you literally cut the plugs apart to see the color. 🤙👊

[@shaunholden7633]

awsome thanks to both of you for kinda breaking it down. I kinda think im getting it so its to determine weather your to rich or lean

[@shaunholden7633]

Thanks bro i think i get it.

[@StupidFastJohn]

@@shaunholden7633 yessir precisely man 🤙👊

[@TheNattyking]

Where was ur idle set? 7?

[@TheNattyking]

I sent mine at 7 . But then some people on the forum saying 7 is too high for stock banshee

[@StupidFastJohn]

U mean on the synchrometer?

[@TheNattyking]

@@StupidFastJohn yea what u think 7 ok for stock banshee?

[@StupidFastJohn]

Honestly i dont use the synchrometer to set the idle its just supposed to help balance the carbs. Idle should be set by ear and then use the sync tool to make the vacuum the same. Its been awhile since i did mine so not sure if 7 is a good number or not

[@mikecheeze4312]

Right side def smokes more. Figure out why yet?

[@StupidFastJohn]

Im in process of doing a leak down test, i think crank seal blew honestly. Waiting for new polebarn to go up before i tear into her 👊🤙

[@kevinomarrivera1253]

@@StupidFastJohn did you find out what happened??

[@StupidFastJohn]

Yea it actually had head gasket sealing issues with studs pulling out of the head, also the primary drive gear for the crank stripped and it was overheating

[@kevinomarrivera1253]

@@StupidFastJohn thanks dude, i recently noticed my banshee doing the same

[@StupidFastJohn]

Try carb synching first and foremost! Thats usually the issue, or a blown crank seal 👊🤙

[@southernslipping4225]

Frame needs to be a different color

[@banshee100]

Yo good vid message me tell ya something you need to know

[@StupidFastJohn]

Will do man! Thanks a ton! 🤙👊

[@mcsbikelife3829]

Hellcat channel the master is here this guy knows his banshees listen the the king of banshees mr hellcat

[@StupidFastJohn]

@@mcsbikelife3829 lol weve been chatting for awhile now! He is good man!!! 🤙👊

[@zacatecano1986]

Just do a leakdown test already . Find out if you sucking air, dont run her like that .

[@dask1516]

You ought to save a few bucks and finish your garage

[@StupidFastJohn]

Fast forward 8 years and i have a full 40x60 polebarn with 2nd floor etc etc lol

[@DUBSTEP732]

Micheal sabo banshee is 100 better and better looking no point in stretching a banshee if you aren’t gonna drag race

[@StupidFastJohn]

Who said im not drag racing it? And im not about looks my whole channel is performance based man.

[@DUBSTEP732]

Stupid Fast you painted the Frame and all chrome motor and blue bead locks I’d say you were going for looks. Anyways I think you’ll enjoy the bike a lot more without the extended arm

[@StupidFastJohn]

@@DUBSTEP732 frame is green. I get what your saying shes still not a show bike lolol, also i really built her for hillclimbing 🤙👊