Mousetrap set up with Primo Clutch help

[curtisvitoria]

Just recently bolted up a new Mousetrap on my 50FL, I am running a Primo Pro Clutch set up. I think I have my adjustments fairly close however, I am having trouble with the clutch returning to it's normal position.

I have the proper tension on my clutch push rod adjustment.

I also read I may need a softer pressure plate. Any ideas would be great, thanks!

[shovithead]

For the return, you need strong springs. THat is the reason for the Mousetrap anyway. When they decided to go with a hand clutch, the stiff springs(stock springs for foot clutch) were the failure of the cables and handles, not to mention nobody could do it all day. So, the more spring tension you have, the easier it is to make the mousetrap go back to over center. Which is what you want it to do. Do you have a HD book with the mousetrap setup? If so, read it, so you understand the process. If not, just post your questions on here.

[curtisvitoria]

Thanks Shovit. I do have the literature (manual) and followed all of the steps. I can get the clutch to disengage nicely with the lever, however the BELL sweeps over and stays put. I does not return to the original position. I have read that the PRIMO Clutch has 3 different pressure plate spring options, and was curious if this may have something to do with it, or maybe a tip as to getting to return.

[shovithead]

Check your email. shovithead in subject line.

[hotsos]

I had trouble getting mine to work right, but i just kept playing the the mousetrap adjusters and rod adjuster and eventually found the sweet spot, and now its a very easy pull with a satisfying snap back.

I have done it a few times and some times it was easy , but the most recent time it was difficult to tune itno that sweet spot.

Dont give up, just fudge around until it works.

[shovithead]

Originally Posted by hotsos

I had trouble getting mine to work right, but i just kept playing the the mousetrap adjusters and rod adjuster and eventually found the sweet spot, and now its a very easy pull with a satisfying snap back.

I have done it a few times and some times it was easy , but the most recent time it was difficult to tune itno that sweet spot.

Dont give up, just fudge around until it works.

I contacted him and told him to increase clutch spring pressure, and install lighter mousetrap spring. He took out one steel, and put a lighter spring on mousetrap and it worked fine. So his is fixed. I am sure you know, but the mousetrap was designed to work with the heavier foot clutch springs. So since the primo clutch was a diaphragm , installing the heavier foot clutch springs was not a option. The lighter mousetrap spring was the answer.

[hotsos]

Good to know, i got another one to put together soon, all try the lighter mouestrap spring, where did you find that??

[shovithead]

I did not find it. Write curtisvitoria at [email protected]

He was the one that found it. But, I am sure if you have a local hardware store, you can take that one and take it to the store, get one half that diameter of wire, and same length. The clutch should return the clutch arm, and the spring on the mousetrap is supposed to pull back the mousetrap. So, when you try with the OEM spring on the MT, it is to stiff for the diaphragm to work. So, with a lighter pull spring on the MT, it will let the diaphragm pull the smaller spring back. He told me, that he also removed one steel in the clutch basket. I don't know why, so maybe you should write him. Or hit his moniker and PM him. He can explain what HE did, better than I can. I just know how the mousetrap works on OEM stuff.

[curtisvitoria]

I did some reading and found that other guys dropped a steel, I traded a friend springs, as mine was new and his had some wear, with adjusting over and over I got it to work, actually works really good. Thanks to ShovIT for all the information....SOlid CAT!

Took it for a good ride today, first of the season, was a beauty!

[shovithead]

shovIt, not shovel. haha And, I hate CATS....... laugh, it is what I do.......

Most of this stuff, is not in a manual. It is from trial and error. Now, I have never did a MT(mousetrap) with a primo clutch setup. But, I have done MT on a hand clutch setup. It does the same thing, or at least close to it. Thank God, I have a good old OEM parts dept. Other people throw away the old things they don't need. I pick them out of the trash. haha

I started a custom Service Manual, 20 years ago. I call it, "things NOT in the Service manual." It has many things, you can't find in the SM. A lot on custom stuff, like simple wiring, and wiring a 5 pole BT key switch, or a 6 pole key switch. Even schematics on 5 pin relays for a starter system, and adding a turn signal system to a non turn signal bike. And installation of different things, that come with installation papers. That way, if I add something, and do not buy it new, I have the directions. I don't plan on publishing it, just for my use. But I use it every week, or most weeks. I imagine I am not the only one to do it, but I have never heard of anyone doing it. But it is well worth the effort.

[hotsos]

I would love to see your wiring a BT switch info...

[shovithead]

Email in your box, with the scan. Hope it helps. It is NOT a factory wiring design, but my own use of the two switches. A simple ohms meter, can do the same thing, if you want to design your own. Or just ask and I can give you a answer.