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81 Yamaha xs 400 petcock


Dave07
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How do I know which postion the petcock is set on? Is the longer part of the handle I turn the pointer? Or is the other end?

On the left says res> on the bottom says on then to the right says <pri . Can some send a pic of a petcock pointing to Pri then res. then on postion. I am so confused. In the morning when I go start it I got to put the switch to the right for it to start which i'm assuming thats the pri postion ? It wont start if the longer part of the switch is down which looks to me to be the on postion. Or do I have a bad petcock?

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How do I know which postion the petcock is set on? Is the longer part of the handle I turn the pointer? Or is the other end?

On the left says res> on the bottom says on then to the right says <pri . Can some send a pic of a petcock pointing to Pri then res. then on postion. I am so confused. In the morning when I go start it I got to put the switch to the right for it to start which i'm assuming thats the pri postion ? It wont start if the longer part of the switch is down which looks to me to be the on postion. Or do I have a bad petcock?

you normally don't touch it as it works from vaccum. don't have it on prime, that's whe you disturb the carbs and they need filling before starting.

the bit you use to turn ie the long part should be; down for on, and forward for reserve and pulled facing backwards for prime

could be the pet-cock diaphram is perished, you can buy kits to repaire them

drewps

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