Boat Maintenance: Difficult to start waverunner after idle time

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	Name:	BigFoot -
	Subject:	Difficult to start waverunner after idle time
	Date:	8/23/2010 5:21:19 PM (updated 8/23/2010 5:26:39 PM)

Hey greycove...I have 2 1993 Yamaha VXR's which are both the same way. I have just considered it as "nature of the beast". I believe you are correct that the fuel pump diaphragm in the carb does not pull the gas the way they did when new. I suppose a fuel pump re-work could get it back to starting like it did when new ...I took off the carb cover and drilled a small hole that would be directly over the center of carb intake so that I can insert a straw used with my starter fluid when cold...one squirt and it cranks and your good for the day. Another solution is to get a kit sometimes sold on ebay that attaches to your fuel line and you can manually pump some gas into your carb when engine is cold...I think your original assessment of the problem is correct...fuel pump diaphragm assuming battery is at full power.
Note...do not drill hole while carb cover is in place...could get some shards of plastic in carb...i know that is too much info but just thought i would add that....

Other messages in this thread:

View Entire Thread

Difficult to start waverunner after idle time - greycove - 8/23/2010 9:18:58 AM

Difficult to start waverunner after idle time - BigFoot - 8/23/2010 5:21:19 PM

Difficult to start waverunner after idle time - greycove - 8/24/2010 11:45:52 AM

Difficult to start waverunner after idle time - BigFoot - 8/24/2010 2:44:25 PM

Difficult to start waverunner after idle time - wedoseadoo - 9/6/2010 9:11:44 PM

Difficult to start waverunner after idle time - Walker County - 5/8/2020 12:02:05 PM

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