yama_dog_350 Posted January 21, 2007 Report Posted January 21, 2007 I had a 4-mm stroker instaled in my shee thats when I lost power. The moter has only had a cool head put on it with 20cc domes, cpi in fram drag pipes, rad valves, reed spacers, degree key, and a boost bottle. I'm wandering if 34mm carbs and a bore job with port would fix the problom. or should i jast pack the motor up and send it to trinity. Quote
Bansh-eman Posted January 21, 2007 Report Posted January 21, 2007 well you got two negitives imo... i wouldnt send a bag of shit to trinity... when you say a bore job i assum you mean having it bored to the next size? the power gained from the next bore will so minumal you wouldnt notice a thing... for sure get your motor ported thats the biggest improvment you can do to a banshee is a good port job.. ditch the boost bottle all it is good for is cracking your intake boots. and the same for the reed spacers they do nothing for performance they are to clear the clutch arm when you use bigger carbs... now you asked about 34 carbs once you get porting they will run better but if your stock ported then the carb is too big... keep in mind once you get bigger carbs your going to need new intakes also ...also the degree key isnt as reliable as a stock key and a 35 dollar timing plate... Quote
yama_dog_350 Posted January 21, 2007 Author Report Posted January 21, 2007 So ditch the boost bottle, degree key, and reed spacers. Get the 34 carbs, port job, and timming plate. Is there anything else that anyone can recomend to get this thing moving. Quote
kojack Posted January 21, 2007 Report Posted January 21, 2007 Am i following you right that your machine used to run faster before the 4mm stroker? Quote
yama_dog_350 Posted January 21, 2007 Author Report Posted January 21, 2007 correct i have tork but less speed Quote
Bansh-eman Posted January 21, 2007 Report Posted January 21, 2007 well theres alot more to it then dropping in a 4mil and gaining amazing speeds... along with it you need porting carbds reed pipes swinger tires .....the list doesnt stop... when you do the bare minumim to accomedate a 4mil crank you gain about 7% over stock... 7% isnt crap... once you get matching parts to wake it up thenyou will see it was worth your while... Quote
4strokessuck Posted January 21, 2007 Report Posted January 21, 2007 I'd say you definately need bigger carbs with the stroker. You'll need alot more air to go into those larger cylinders and stock ain't cuttin it. Standard bolt-ons on a standard motor will max out your carbs. With stock carbs, you'll have killer torque but diddly for top end. What is your intake setup? Airbox, lid off, no box? Quote
yama_dog_350 Posted January 21, 2007 Author Report Posted January 21, 2007 (edited) no air box k+n filters. Also i was gona pay about $3,500 to trinity so thats my budget also iget parts at cost. Also bansh-eman what do you mean by matching parts. Edited January 21, 2007 by yama_dog_350 Quote
06BaNsHeE Posted January 21, 2007 Report Posted January 21, 2007 no air box k+n filters. Also i was gona pay about $3,500 to trinity so thats my budget also iget parts at cost. Also bansh-eman what do you mean by matching parts. He means as soon as you get the stroker you need: Reeds Filters Carbs Porting New pistons when you port it. Also you dont need a degree key and a timing plate.Just get a timing plate for 35$. Quote
Bansh-eman Posted January 21, 2007 Report Posted January 21, 2007 (edited) he was close to what i ment... when i say matched parts.. i mean the other bolt ons to really bring out the power... when you make a bigger motor you have to change other parts to really see an imporvment or else your just choking down a bigger motor... if you have 3500 to spend you can get one nice ass motor... but keep in mind if you dont have a suspension to hold all that power to the ground its pointless... post EVERYTHING you have after market to your bike so far.. from there im sure we can get that thing screamin for under 3500 bones edit: also put what type of riding you plan on doing so we can weed out parts that dont match your riding style... Edited January 21, 2007 by Bansh-eman Quote
csrmel Posted January 21, 2007 Report Posted January 21, 2007 if you put a stroker in with a spacer plate and no porting then it does you little good because it messes with youre port timings in a bad way. on one hand you have a stroker crank, thats good. but shoddy port timings are a very harsh downside to that because the crank alters the port timings and the spacer plate only half assed fixes those timings. its sort of a bandaid way do get it done. (atleast with a 4mm crank) dont worry about the reeds and shit for now. just pull the cylinders off and have them ported to match the crank and also youre pipes. get it back together and running with a top end gasket kit. with that alone you will beat the snot out of any 400ex and most other quads out there. Quote
Bansh-eman Posted January 21, 2007 Report Posted January 21, 2007 (edited) if you put a stroker in with a spacer plate and no porting then it does you little good because it messes with youre port timings in a bad way. on one hand you have a stroker crank, thats good. but shoddy port timings are a very harsh downside to that because the crank alters the port timings and the spacer plate only half assed fixes those timings. its sort of a bandaid way do get it done. (atleast with a 4mm crank) dont worry about the reeds and shit for now. just pull the cylinders off and have them ported to match the crank and also youre pipes. get it back together and running with a top end gasket kit. with that alone you will beat the snot out of any 400ex and most other quads out there. sorry man but im going to have to disagree with you.. the guiys got 3500 bucks to play with and you want to half ass it and port stock reeds? that makes no scence... get your jugs ported, get you some vf3 reeds, some bigger carbs, a coolhead and domes, pipes to match your riding, a nice clutch, a swinger, and theres a few other small things to go with them... but like i said before you an have a beast of a motor but if you dont have the suspesion to put it to the ground you wasted your time with the motor... im a big fan of do it right the first time... may cost a little more now or you can half ass it and cost alot more later Edited January 21, 2007 by Bansh-eman Quote
Lethaface Posted January 21, 2007 Report Posted January 21, 2007 He said he has a rad valve..If i'm not mistaken that is boyesen's aftermarket reed set up so that area should be covered. Depending upon what type of riding you do, you might wanna consider a cub set up..You would be able to get everything you need to make it run right and have some cash left over out of the $3500 since you already have CPI inframes and the 4mm crank.. Quote
Bansh-eman Posted January 21, 2007 Report Posted January 21, 2007 ya he has rad... i had them when i first got my bike... and theres a reason i no longer have them... the diffrance of the two are apples and oranges... if you can get your hands on some vforce 2's get them but good luck... if not go with the 3's Quote
Lethaface Posted January 21, 2007 Report Posted January 21, 2007 ya he has rad... i had them when i first got my bike... and theres a reason i no longer have them... the diffrance of the two are apples and oranges... if you can get your hands on some vforce 2's get them but good luck... if not go with the 3's Did ya not like the boyesens? honestly feel any power between the switch?? Quote
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