No throttle??

Cal Coon · 07-21-2018, 08:00 AM

I have a 7.4l mercruiser that starts right up and idles fine and goes into forward and reverse with no problem. However, it will not throttle up whether in reverse or forward, or even in the neutral position. The cable looks fine at both the shift end, and the other end at the carburetor, any suggestions??

DickR · 07-21-2018, 11:10 AM

First thought is carburetor fouling, perhaps due to fuel stored too long without stabilizer added.

Cal Coon · 07-21-2018, 01:48 PM

Quote:

Originally Posted by DickR

First thought is carburetor fouling, perhaps due to fuel stored too long without stabilizer added.

I found the problem. Throttle cable broke inside the lining. Pulled right out when I disconnected it from the carburetor. Never had that happen before. I overdose every motor I own (with a carburetor), with Startron fuel stabilizer, and have NEVER had to rebuild, or replace a carburetor (yet!!) in anything for over 25yrs. Stuff works amazing. Highly recommend it if you're not using it.

bigdog · 07-22-2018, 02:29 PM

Ditto Cal Coon, had the same issue a few years back, a real mystery at first, but after a visit by a mobile marine tech who diagnosed.

07-21-2018, 08:00 AM	#1
Cal Coon Senior Member Join Date: Apr 2018 Location: Lakes Region Posts: 475 Thanks: 179 Thanked 158 Times in 100 Posts	No throttle?? I have a 7.4l mercruiser that starts right up and idles fine and goes into forward and reverse with no problem. However, it will not throttle up whether in reverse or forward, or even in the neutral position. The cable looks fine at both the shift end, and the other end at the carburetor, any suggestions?? Last edited by Cal Coon; 07-21-2018 at 01:50 PM.

07-21-2018, 11:10 AM	#2
DickR Senior Member Join Date: Apr 2008 Location: Moultonborough Posts: 751 Thanks: 4 Thanked 259 Times in 171 Posts	First thought is carburetor fouling, perhaps due to fuel stored too long without stabilizer added.

07-22-2018, 02:29 PM	#4
bigdog Senior Member Join Date: Apr 2006 Location: Central MA-Gilford Posts: 1,446 Thanks: 340 Thanked 119 Times in 96 Posts	Ditto Cal Coon, had the same issue a few years back, a real mystery at first, but after a visit by a mobile marine tech who diagnosed.