Did this just start? How often have you ridden it since December? How old is the fuel? Is there rust in fuel tank? Has the fuel filter been changed? Is the air filter clean, white looking or yellowish and cruddy? Is this with or without using choke?

 

I've experienced symptoms of misfiring, from gas declining in quality after just 2-1/2 months. 9 months is definitely long enough to degrade, especially if it's unleaded. Stabil is supposed to prolong the useability of gas, not to cure it after it's turned bad.

I'd siphon or drain the tank and try again with fresh fuel.

 

thx i order a new gas line and new fuel pump. im waiting for a friend to come look b4 i start whrenching. iv been riding bike ever few days adding new gas. its raining now and its outside so im on here this second.

 

this is without choke. i dont ever use the choke. just starts up. my fuel filter is clean. i need to check air filter. problem happened overnight. i read two similar post but no one ever posted the solution.

 

Diagnosing a problem like yours can be difficult without some background, that's why i asked all those questions. My first thought, you have gotten some debris in your carbs restricting one of the jets. Debris can slowly accumulate and then get bad enough to really notice. That's why I asked if there was any signs of rust in tank. It doesn't take much rust in tank to create issues in the carbs, the fuel filter doesn't catch it all. Are you confident that the previous owner "cleaned" the carbs properly. How do the plugs look, are they super white (lean condition), all black (rich condition), or slightly tan (good condition)? Have you checked for vacuum leaks between carbs and engine? Why are you replacing fuel pump? Did you do the simple test of removing fuel line between pump and carbs, place the end in a container and turn key on? Did it pump fuel? Your bike will run without the pump if you have at least 1/2 tank of fuel. On the Vstar, the bottom of tank is below the carbs, pump is used to pump fuel up a little to carbs.

 

I don’t know about the V star but for the road star I gotta choke it till it’s out of the neighborhood

 

Throw some seafoam in the tank, this will help the fuel and get any deposits you may have built up with it sitting for 9 months. Use about 2 ounces a gallon.

 

my tanks mad dirty but not much rust. what do yall clean tank with. on a moped one time i did vinegar and then backing soda and water. what is seafoam is that a brand?
im gonna try a carb clean and get back to yall
bought new fuel pump because thought old one might be dirty. probally a dumb buy maybe ill return it or just go for a new one. yall think they last long time?

 

Seafoam is a brand. It cleans fuel system, stabilize fuel , cleans piston top and valves.

 

Hello What brand of stabilize do you use

 

seafoam as I said

 

I miss read it thanks

 

well its been a tough time with the carbs. finally got them apart after stripping 4 screws. i broke one throlle cable and now another strip screw just waiting on me. one i didnt strip came like it. so now i wait for rebuild kit. i tested my fuel pump. my gas line is all crazy and was probally under a pinch on the turn. its not stock line. the stock line piece was crazy expensive like 30 bucks but i got it and i think its my problem becuz carbs were much cleaner than thought. its a hose with a pre bend. ill know for sure once i get it back together

 

heres the crazyest thing about new gas hose is its 1/4 on one end and 5/16 on other end. its supose to be to fit the peacock. i got a brass fiting on there now that does a 1/4 to 5/16. i was so confused why they didnt do 5/16 the whole way. guess thats why its a 30 dollar line. crazy huh

 

this carbs giving me heck. the choke spring took off into a flower bed so now i ordered another spring. more waiting now unless i find it. i would suguest not spliting these carbs to clean unless real dirty because the little circlip and small spring is hard to do.

 

ok we found the spring 25 feet away with a big magnet. spring took my dad helping holding a finger on so spring would not fly off. now i got carbs back on and tested once but now i gotta still clean my tank. tank was lined once and liner is now falling apart so its a mess. i got air filters and 120 jets on and a breather filter.

 

runs alot meaner now! alot more smooth in second gear. problem solved. must of been hose but i had some rust in carbs too. thanks for all the help