stroker stock carb problems

[NEVERFASTENOUGH]

please help i have a 97 shee i just had the engine redone with a 4m 5m hotrods stroker with hot rods stroker pistons to match and spacer plate i had the cylinders bored to 65.50 mil i also have a mod quad cool head with 18cc domes and v force 3 reeds and pro flo intake boost bottle stock carbs with a 270 main jet i just got the engine together yesterday and im havin a hard time starting it , it wont start till i pour gas into the carb then it will fire up and sounds pretty good but wont idle ive cleaned the carbs and it wont make a difference im trying to break it in right now after i ride it around the yard it wont even idle when its warm so as i let off the gas it stalls out and wont start back up till i pour gas back in the carbs but once i get it running and moving it feels strong no bog or mis but wont idle or start unless i put gas in the carbs this is my first banchee i have tryed every thing i kno if you guys can give me any advice its much appreciated i dont wanna screw this engine up i spent all my savings on it, my riding temps are about 60-80 degrees in the summer and winter 20-50 degrees the guy who sold me the main jets said in the summer juss take the air lid off and keep it on in the winter and it will run fine, it juss seems like it wont get gas but when i pour it in the carbs itll fire and ride perfect it dont make sense ive cleaned the floats and checked my compression 160 pounds in each cylinder thats good right? maybe it needs bigger carbs or timing work im not sure and i also think my cylinders have a stock port job. i juss wanna get it running right so i can go kick sum 4 stroke ass do u think this machine will scream thanks guys ?

[fast500#12]

did you have you ports matched for the stroker?

what size are your pilot jets?

what slot is you needle clip on?

how many turns out are your air screws?

if you are ported i am sure that your mains are too lean. they will need to be around 320 to 340.

you can runn stock carbs but you wont be at the max power out put.

what pipes do you have?

it wont really scream until it is ported and done to match the stroker crank.

[FireHead]

please help i have a 97 shee i just had the engine redone with a 4m 5m hotrods stroker with hot rods stroker pistons to match and spacer plate i had the cylinders bored to 65.50 mil i also have a mod quad cool head with 18cc domes and v force 3 reeds and pro flo intake boost bottle stock carbs with a 270 main jet i just got the engine together yesterday and im havin a hard time starting it , it wont start till i pour gas into the carb then it will fire up and sounds pretty good but wont idle ive cleaned the carbs and it wont make a difference im trying to break it in right now after i ride it around the yard it wont even idle when its warm so as i let off the gas it stalls out and wont start back up till i pour gas back in the carbs but once i get it running and moving it feels strong no bog or mis but wont idle or start unless i put gas in the carbs this is my first banchee i have tryed every thing i kno if you guys can give me any advice its much appreciated i dont wanna screw this engine up i spent all my savings on it, my riding temps are about 60-80 degrees in the summer and winter 20-50 degrees the guy who sold me the main jets said in the summer juss take the air lid off and keep it on in the winter and it will run fine, it juss seems like it wont get gas but when i pour it in the carbs itll fire and ride perfect it dont make sense ive cleaned the floats and checked my compression 160 pounds in each cylinder thats good right? maybe it needs bigger carbs or timing work im not sure and i also think my cylinders have a stock port job. i juss wanna get it running right so i can go kick sum 4 stroke ass do u think this machine will scream thanks guys ?

 

Two things to start out with:

1.) If you do a better job formatting your posts with capitalization, punctuation, spacing you will get better responses faster (I skipped over your post a couple time simply because I didn't want to read it).

 

2.) If you have to add gas in addition to what the crabs suplly you are lean for one reason or another.

 

A 270 main jet is probably way too small for your application. This generally won't make the engine not start though. If you are that small on the main jet your pilot jet is probably also too small, which would make the bike not start and stay running on it's own. What kind of pipes do you have? Have you done a leak down test? That ought to give you a few things to check. Let us know what you find. :thumbsup: