live4dirt

There have been a couple of things others have found. Read "the hard to start" thread just above or below this one for some good advise. Also the TPS I beleive gets a 5 volt signal and returns a 0+ to maybe about 4-1/2 volts back depending on the throttle position. You shouldn't have to set the fuel regulator, alititude is compensated for by the computer. Setting it lower could very well cause the injectors to not mist or spray the fuel into the intake ports well. Poorly misted fuel won't atomize well and not enough vaporizes to create a good air fuel ratio for ignition. This could make starting harder. Remember that wet fuel on the spark plugs isn't atomized fuel. You can pour all the gas you want into the cylinder but if it doesn't atomize, it won't start. I beleive it should be set at 43 PSI but check the online manual.

Welcome to the forum. A lot of good and some very important information in past threads here.

Lenny

thanks for all the info guys. i,ll take your suggestions and try them. the group i ride with are big into dessert racing. infact we host uor own race 2nd weekend in august. so we'll get this figured out, when we do i'll be sure to post it. by the way we don,t have a utv class for race YET.

hi there i'm eric

i'm new to the group,and a 2008 t2 owner. my buddy lance suggested that i join to see if ant one has an answer to my problem. after sitting over night my buggie wont start. i have to jump start it from an outside source. the starter cranks, the plugs are wet with fuel but no fire. i pulled the plugs, and with new ones tested for spark, they all 4 sparked, but no fire. i turned my fuel press. down to compensate for 7000+ elevation but still no good. i pulled the air inlet sensor and cleaned with electri. contact cleaner, no good. the only thing i can think of is either bad fuel(but after initiall start up runs great), or throttle positioning sensor is set wrong. does anyone know the voltage to set it with. im okay with mechanics, but this one has me stumped. if anyone can help it would be appreciated.

live4dirt

eric