Jereme6655

What are the compression numbers that you’re getting??

Stock bike? Choke tube between carbs hooked up?

Did you do a leak down test on the motor before running it?

You’re going to need to do some work….. what is your squish, what is considered “premium” where you are at? What is your jetting and elevation? Also….. the piston on the right….. is that a hole melted through the top of the piston?

Tapatalk. Use that for photo size problems

Some of us have been around since before these bogus companies got going. Like Tyler said, most of us that still wander this site just run with sponsors.

I believe the same thing as I ride trail…. Not drag strip. Might wake up to a morning 25 degrees different than the afternoon before. I’d rather ride than worry about if I’m too lean…. I’d comment about the jetting but I don’t play around with the pkw carbs too often

So what’s the problem? Are you struggling to jet it? Or just curious if different pipes would perform better?

^this led’s run off of DC …..your banshee in stock form is an AC machine. You could either run a separate battery to supply power for them, or you could search on here and find the write ups on how to “float your ground” and get your banshee to produce dc

The first plug looks a little light to me…. But I also would rather run a touch fat rather than rebuild because of a lean burn down. Just my 2cents.

Choke tube. There should be a tube running between the two carbs as one carb only truly has a choke circuit.

Ahhh…..the airbox thing wasn’t in the first post…..which going to pods with no airbox will in fact require a jet change by itself. that jetting doesn’t seem TOO far off being 3200 ft. To be honest I’d probably throw the stock needles back in (no experience with the toomey ) and do a plug chop. What pilots are you running? Any slight bog off idle?

Yup it can. Then you’ll really know what a shitty situation is. They sell “pancake” bearings specifically to remedy that. also…..this site has so much more info on it than most understand. Most things you have questions about can be searched in google by adding in banshee hq after your word…..you’ll be amazed the info that is stored in here.

Depends on more factors. You trying to run this in winter temps or summer? 290 mains is what I would say a decent starting point for jetting the bike. More than likely it’s going to want a 27.5 pilot with those fattys. Start with that and then do a plug chop to verify correct getting

It’s a twin cylinder two stroke….. it doesn’t have the torque down low like 4 strokes. And chances are, you’re not high enough into the rpm to “power-wheelie” like you want. Will they do it? Absolutely….. will they do it like a 4 stroke? Nope….you have to be way up in the rpm and on the pipe to “power-wheelie” which means it’s going to be a potentially violent wheel lift. if you want to wheelie, go back to a 4stroke. If you want to humiliate 4 strokes….keep the banshee.

Wide open is going to be based on the main. But why did you switch to a different needle? And what are your “other” moods that are appropriate for the 280 jetting? Plus what temp and elevation are you trying this at?

Well if it’s got 66mm pistons that means it’s 80 over……..aka you’re about at the end of the life of those cylinders. Some say you can go to .100 over, but most of us stick with .080 being the biggest that you can bore it. Stock bore is 64mm. call a site sponsor (I use Jeff at FAST RACING)….talk to them and tell them what you know about the bike. They will ask you what your intentions with it are and they’ll get a pretty good feel for your riding style through conversation and recommend what they think is best. Chances are, at 80 over….. you may wind up having to break into the lower just to verify that it’s still good. It would be terrible to build that engine up just to have a crack failure because it’s past its prime and destroy the new stuff. Realistically I bet you’re gonna be in it cylinders, pistons, carbs depending what cylinder setup, and a top and bottom refresh/rebuild. other option is just ride the piss out of it and start gathering parts or ideas and wait until something goes wrong, then build it up.

Crankshaft. Some cranks can be reworked. Some cranks cannot. Depending on the crack that is in it, it might not be cost effective even if it is able to be reworked. As far as cylinders and pistons go….. it depends what you’re doing with the motor. Keeping it stock? Oem cylinders are pretty damn hard to beat. Unless you’re swapping out to a cub or different wild setup……oem cylinders can take you places you’ve never thought of. Pistons…..I run wiseco pistons.

Powdercoat in threaded holes is common for anything being powdered. Most places will talk with the customer and block off the threaded holes if possible. Does that mean they’re going to be perfect? Absolutely not. It’s common for a tap/die to be needed to chase the threads and clear out the powder coating after application.

I have a super similar setup as you have. Like scary close. I’ve had weisco pistons in it for over 10 years. Wouldn’t trust anything else. I have seen some people have problems with them (very few) but those people don’t like to warm their stuff up. They more or so start it and proceed to immediately beat on it….then bitch when they cold seize a piston….

With that info…..there’s more questions you’ve created than answers…. what mods do you have on your bike? What is your elevation? what temps? when did you last jet your bike? First guess…..you’re running lean on your bike which is causing the heat buildup. And the sticking throttle can be caused by either your carbs icing up, the carbs injesting snow/water (which is known to stick these carbs) or also worn slides on the carbs….

Personally…to me…..I’d richer that up. It appears to be already on the ragged edge of lean. Granted this is just my opinion. But I also don’t like rejetting mid day when the temps come up. But in a serious note….im not a fan of that light of jetting marks at all.

Ya he’s asking if minkia sold you them “ported cylinders”…... Dudes a real shit bag ….dont shit like that for YEARS….

Seriously? The smog equipment?!? Just remember folks…. These are the “trained professional” doing what they were trained to do. Fucking unbelievable………. And these people are allowed to vote and breed….. good lord….