jmcguire

When warmed up car runs awesome.In the mornings it's very hard to start.I have to turn it over about 20 times to start. And when I DOES START IT SORT OF SLOWLY COMES ALIVE. With fuel injection, usually when the motor starts it fires up evenly. Any suggestions.Thanks, Jamie

Zen31ZR

Coolant temperature sensor is the typical problem , on OBD-1 cars........ Z31s being for the most part pre-OBD , I honestly don't know. But it has something to do with the fact that the ECU is either not spraying enough fuel for the car to start when cold (requires a highly rich mixture) , or is spraying too much fuel and is flooding out the engine. Do you smell a lot of gas when this happens?

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1992 Yamaha FZR 1000. 145 Hp, all stock..

jmcguire

No I don't smell fuel.Do you know where the temp sensor is on engine? Thanks,Jamie

Zen31ZR

MY suggestion is for you to go to the local auto-parts store and buy a Haynes manual. You can also order a factory manual , but I forgot what the number was..... Somebody post that again please.
Oh , and to answer the question , I don't know where it is right off hand....

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1992 Yamaha FZR 1000. 145 Hp, all stock..