Gaffrig throotle control manual

First I figured out what that little set screw that you can see at full throttle down in the slide slot actually does. I never did find a detent, so correct me someone please. I hate to admit but all it did for me was allow me to loosen and tighten the throttle resistance. If anyone has anymore info let me know, so first I adjusted to real loose, Counter clockwise one turn till your good and they are both even, anti clockwise if your British. When I was all finished with my adjustments I chose to tighten to a stiffer throttle, because I did not like anything to be that loose, especially if I am not always the one at the throttle in and out of gear.

Thats just me. The set screw worked good for that too. Second tape the throttles together So they move at exactly the same time, i didn't actually do this, I was just crazy enough to, run for and aft to look at them incessantly 2 or 3 thousand times to make sure they were EXACTLY the same, then adjust, at the motor throttle linkage to the butterfly, by spinning the AFT mount of the cable in or out on the cable GRAB YOUR 3.

Don't worry about full throw at this time. Herein lies the Beauty of the Graffig. The Graffig throttleset is so so sensitive that you can almost feel the tension on the throttle when the butterfly starts to open.

Here is another thing, which I did not deal with may come up. I worked with almost new cables so I did not work with any stretch, if you cannot get the cable length described above move pull the throttles up and adjust the clevis' on full in till you can adjust the motors the same.

If you don't understand that, pretend you already did this then move to next step and then repeat the whole thing. I did this to learn the system. Butterfly just meters air, nowadays, the Mercruiser computer figures out how much gas to inject via MPI, instead of jets buried in some archaic float system likewise buried within the carburateur and having to be sucked into the venturis by some likewise old bernouli system.

Second, Pull your throttles up Grab a bunch of clean rags, keep in mind there are wires involved and GENTLY pull the 4 mount screws out Gentfully and carefully and pull them up. They are DEEP for good reason, what I ended up doing, was sitting them on the rags aforementioned to a little sideways so they would stay up. Being especially careful of the gentle wiring. With them up, Look at the throttle pull linkage, by advancing the throttle You will notice a brass clevis with a lock nut attached to the cable.

This is attached and adjusted by removing the straight slot holding the clevis in place and, of course, loosening the lock nut. Now that you have all this out I ran the engines with them up.

Its siimple. Adjust Out or move clevis out on the slow to rise throttle one half turn at a time then reinstall and test And they sound Darn good too. They aren't truely synchronised as I hear the harmonics, within thier frequencies, but they are real close and I am impressed They started out about rpm off at Now other then computerizing, I can't get them closer. There are full and end stops on your Graffrigs as youll notice, I did not adjust these at all. I noticed these did not have any effect on the throttly butterflies movement on either motor so I did not bother with them at all If you have questions, reread about 2 times, ask me, then I will reread about 5 times.

I am way to picky for my own good. You can post now and register later. If you have an account, sign in now to post with your account. Note: Your post will require moderator approval before it will be visible. Paste as plain text instead. Only 75 emoji are allowed. Display as a link instead. Clear editor. Upload or insert images from URL. Technical Discussion Search In. Gaffrig throttle split By redsc , February 25, in Technical Discussion.

Reply to this topic Start new topic. Recommended Posts. Report post. Posted February 25, Anyone have gaffrig throttle instuctions as installed in the SC? Share this post Link to post Share on other sites. EastCoastB 0. Posted February 26, Posted February 28, Posted February 29, Posted March 4, Posted March 28, Install the app.

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You should upgrade or use an alternative browser. Thread starter greg Start date Oct 19, Joined Oct 26, Messages I know the shift interruptor switch is in there. There don't appear to be any trim switches on the current shifter, but there will be on the new one. Are there some instructions that would help to install new controls?

Basically, how involved is this project, and is it something that can be done without help? Any help would be appreciated, thanks. Joined Jul 27, Messages 3, I haven't actually picked up the boat yet, just went to take a look at it. Buying it this weekend. A new shift cable involves removing the drive to pull it out, right? It doesn't necessarily have to be the same shifter as the link I sent, I just like having 2 separate levers for shifting and throttle.

Is there a way to find out if I will need new cables? Also, what about the shift interruptor switch wiring? If so then that doesn't seem like a problem. I assume the trim wires are the same too. As for the shift cable, I have always heard that you need to pull the drive to replace the shift cable.

How would you do that without removing the drive? Bondo Moderator Staff member.