Nissan 6HP Motor

W

wlharden

Recruit
Joined
Jun 1, 2004
Messages
2
I just got a new Nissan 6HP 4 stroke short shaft I use on a Porta-Bote. 13.5 mph with just me, 8mph with my wife too. I've completed the breakin process and have a few problems to share. Any ideas would be appreciated.<br /><br />I live and boat at or above 4000 feet.<br /><br />Motor will only start (hot or cold) with choke out<br /><br />Idle speed is fast. Had to adjust up to keep engine from dying. Too fast for good trolling.<br /><br />Engine was run at WOT for about 10 minutes then died. I don't mean slowed and quit, I mean STOPPED cold! Checked tank vent, fuel hose, connectors, all good. Squeezed primer bulb a few times, choked, and it restarted and ran OK.<br /><br />Engine will begin to surge. Squeeze primer bulb and it smooths right out.<br /><br />Fuel tank cap leaks. Looks like gasket has a flaw.<br /><br />Motor looks to be nicely made, sure hope I can get these issues resolved!
 
4

45_red

Petty Officer 2nd Class
Joined
Jan 22, 2003
Messages
173
Re: Nissan 6HP Motor

Sounds like you are sucking air.
 
W

wlharden

Recruit
Joined
Jun 1, 2004
Messages
2
Re: Nissan 6HP Motor

Interesting you should mention sucking air. I thought I might have heard a whistling soung for a bit during operation. As previously suggested, I will take it to a dealer but will mention the possibility of a vacuum leak to them. I'm also thinking I have a fuel pump problem??
 
L

lewkster

Seaman
Joined
May 25, 2003
Messages
60
Re: Nissan 6HP Motor

Hi. I bought a new nissan also. Had same exsact problem ( hopefully this will help you) My gas tank had a crack in the tube that sucks the fuel. It should be easy enough to check. My fuel tank where the gas hook up is. Loosen that, pull out and check that dip tube for hair line cracks and such. This may not be your problem, but I had the same exsact symptoms as you described. Perhaps speed up fixing the problem. I think that tube may have actually cracked from my not opening the vent once. Cause it worked fine Till it killed one day, so opened vent and air rushed in. After that is when my problem started. Opps!!!
 
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