92 Yam 250 Fuel Enrichment Problem

[kevins669]

Hi all,

One of my 250's is very difficult to start. The only way I seem to be able to start is to follow the "Manual Fuel Enrichment Valve Starting Procedure," which calls for turning the valve on, priming the bulb 6 times, then starting.

Seems to do the trick every time. When I rebuilt the carbs, I blew air and cleaned out the passageway that each "electric" valve is in.

Any suggestions? Once running, all else is ok. I searched the forums and could not find a similar problem.

Thanks!

Kevin

 

[yamamarinetech40]

Re: 92 Yam 250 Fuel Enrichment Problem

You may just have a bad primer bulb....letting the fuel flow back down to the fuel tank when sitting....is it just after hours have passed or sooner? If overnight bet it's the bulb...