My Motor goes forward/N/ but wont shift into reverse Mercury 650cc 65hp Thunderb

[y2jericho]

On the land sometimes my motor shifts into reverse and sometimes not but when im on the water it absolutely won't shift into reserve and just does this clicking or thudding sound like if it were trying to engage but can't stick it in. Its a 1970 Mercury Thunderbolt 650cc 65hp 4 cylinder model. No matter if i switch over from my 2 lower units it absolutely won't go into gear and i have no difference between the two.<br /><br />Is there something i can adjust myself because it just won't go into gear for some reason ;( Im kinda newbie and have no access to a manual for at least a fortnight till it comes through.. Beaching the boat is a ***** for me <br /><br />Thanks in advance guys<br /><br />-y2j

 

[12Footer]

Re: My Motor goes forward/N/ but wont shift into reverse Mercury 650cc 65hp Thun

Re: My Motor goes forward/N/ but wont shift into reverse Mercury 650cc 65hp Thun

Having a spare lower unit narrows it down to a linkage problem, (providing it's not the strange conincidence of both l/u's having the same blown gear).<br /><br />Have someone operate the binickle, while you watch the linkage at the motor.<br />It's really the easiest way to understand the workings. It is all adjustable, as you will learn.<br />The manual will explain it,I can explain it. But trust me, you won't fathom it until you study the movement with your own eyes.<br />Not that it is strange or complicated. It's not. But---- "the thingy remains still,while the bracket thingy moves ,but only in forward"---isn't goin to help you as much.<br /><br />So you have your mate move the binikle into forward,slowly, exhilerate, then back to neutral, and past neutral in reverse to the stop, back and forth like this with the motor shut off, until you understand it. If the binikle locks-up,and doesn't allow engaging, turn the flywheel by hand until it moves freely back and forth. Then with your mate's help, you can see how it werks much better than the manual or I could explain.<br /><br />Where the manual will help, is when it comes to the proper meathod of removal and installation of the lower unit. It must be in neutral when it is removed, and the shift shaft must be in neutral durring installation. Insure that once the l/u is seated and bolted-up, that it is still in neuutral, and the cogs didn't slide into gear durring the mating-up process. If it is in gear, you must drop the l/u and start from scratch.

 

[y2jericho]

Re: My Motor goes forward/N/ but wont shift into reverse Mercury 650cc 65hp Thun

Re: My Motor goes forward/N/ but wont shift into reverse Mercury 650cc 65hp Thun

Will try.. Will try <br /><br />Also can a motor not shift into reverse if the Idle rpm's are set to low.. I have mine set to low right now its proabbly sitting at 300-500rpm when it should be close to 1000?<br /><br />Should i turn it up?<br /><br />THanks again guys