Home made boost bottle review!!!

i built a boost bottle from these instructions How To/Formula for Making Your Own Boost Tube
i tested different sizes on my x7 and cutting the pvc to 3inch works better.
my x7 only had a performance filter and when adding the boost bottle on it, on my test track where i got to 28 before i was at 32.. the top seemed to be the same but it could be more if i go on a longer track... the boost bottle greatly improved the low end so great it felt like i could pull a wheelie unlike from before when i need to giv it a push start!!! ive seen some online boost bottles for like 50 bucks and the homemade ones seem better and are easier to adjust!!! not to mention like half the cost!! the cost only costed me under 10 dollars cuz i already had the pvc parts, teflon tape, glue and drill bit and tap.

this is something you deffinetly need to do for performance and not empting your wallet

this weekend i accidently kicked my boost bottle when getting up and re ziptied it in another position and i found you get even better low end when the boostbottle barb is pointiong down (pointing twards the ground...but have it raised higher than the manifold)

just a little trick i found

could you post step by step pictures of what you did

thanks

i didnt take any but im makin another one 4 my friends (x1 & cateye) ill take pics then and post them (ill probably be in a few weeks though

what is better metal or pvc?

metal is better because pvc can melt in contact with fuel fume.

ya i forgot about the pix sry guys its reletavly easy though.. any ways it doesnt matter at all scense it doenst heat up or any thing i would go with pvc cuz ill b easier and cheaper...................the only reason i would make it in metal is if i was planing to send it to a chromer

how far can the boost bottle be from the manifold?

cool. i read the links, now if i just knew where to locate the bottle and what to attach it to i'd be all set. pics of your installation? description/diagram?

for the x1's you can use a M&M minis bottle and seal the top with a silcone. the M&M mini bottle is close to the correct diameter of what ur bottle should be for the x1's and x2's. congrats on ur mod! I have a boost box on my bike if i put a boost bottle on mine will it help me or effect me. thanks
nick

i made a boost bottle for my x2 but when i gas the bike all the way it just like chokes and eventually turn off, what should i do?????????????

u made a m&m mini bottle? r u sure its sealed up? also u should make sure u got a aftermarket air fillter and vstake cause it can suck in mnore air. u may have to get that and also ur air mixture screw could be off

i got a k&n air filter and v-stack,and what and where is the air mixture screw?and no i made it out of pvc

ok taht explanes alot man. first off ur botle is to big u can only make the bottle a certain size so it helps you not effect you. it should be the size of a M&M mini bottle anything smaller or bigger will effect u. ur bottle also could be leaking air. ur air feul screw is on the side of ur carb and its got a flat head on it and u use a flat tip screwdiver to adjust it. hope taht helps.

ok man, i guess i will be eating some m&m minis today, lol

To el Cangri; I allso made a boost bottle for my x7 and i can say do it only half the size of your engine cc. I done mine exactly 49 cc and the idle was crap ( bike idled high then low and high again and so on untill it boged out. It had just litle beter response in mid RPM. So i made it about 0,8 the size of my engine and it was a litle beter but not good enough for me. So i made another bottle about 24,9cc (49 cc engine is only 47 cc; 44mm bore, 34mm stroke) and it works beter now; good throtle response (beter accel. in corners) and it gets to top end a litle faster. It is not a mod that would bring you much power it just add a litle more crisp to your accel..

thanks man

were do i tap the manifold for a boostbottle

To James; Drill your manifold on uper side then cut a thread in there (be carefull it is heat resistant plastic. You dont wana break it cause it is not posible to weld that kind of plastic!!!). Put loctite on the tap and screw it in, let it harden a bit then take a grinder and grind the part of that is on the inside of the manifold so you get a smooth hole like it was before. Next clean it up and put some silicone gasket maker around the tap on the outside of the manifold (just to make sure it is air tight). So if you done ewerything right the tap is pointing up when you put that manifold back on the cilynder.

thanks going to try it this weekend