7.5 HP MERCURY THROTTLE

PICSTEVE

Recruit
Joined
Mar 31, 2005
Messages
4
I RECENTLY PURCHASED A 1980 7.5 H.P. MERCURY. WHEN I PURCHASED IT, IT NEEDED NEW THROTTLE CABLES, AND A NEW THROTTLE POST. I PURCHASED THEM AND INSTALLED THEM, MY 2 PROBLEMS ARE THESE:<br /><br />THE THROTTLE POST STARTS AT BEGINING OF CAM STROKE, AND ENDS NEAR THE END OF THE CAM STROKE, BUT THE CARB THROTTLE SEEMS TO BE ABLE TO OPEN WHEN YOU HAVE THE HANDLE TWISTED AT WOT ABOUT 20 MORE DEGREES. IS THIS NORMAL, OR SHOULD THE CAM OPEN IT AS FAR AS THE THROTTLE TRAVEL ALLOWS?<br /><br />ALSO THE THROTTLE POST SPRING IN THE CARB ISN'T POWERFULL ENOUGH TO RETURN THE THROTTLE HANDLE MECHANISM BACK FROM WOT TO IDLE SPEED. IS THERE SUPPOSE TO BE A RETURN SPRING FOR THE THROTTLE SOMEWHERE THAT I MAY BE MISSING<br /><br />REGARDS
 

Laddies

Banned
Joined
Sep 10, 2004
Messages
12,218
Re: 7.5 HP MERCURY THROTTLE

There is a return spring 0n thr carb shaft to return it to ilde it could be broken or the shaft is sticking. The carb don't open intill mid throttle an is adjusted on the top of the throttle lever at the carb
 
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