JCL MP-150A Vacuum lines and hoses By deanie (Read 1,188 times)

[deanie]

Hello! I'm so happy to have found this forum! I hope you can help me! I just purchased a 2007 JCL MP-150A (It also has YY150T-12 on it). I bought it from a friend who told me that the vacuum lines would probably need to be replaced. Well, now that I've begun to assess the situation, I can see that many of the lines are completely missing! I have no idea where to begin! I can see a canister with 2 nipples on it, but have no idea what to hook to it! Other lines are connected at one end, and disconnected at the other. Is there any place where I can get a detailed manual that will show where vacuum lines and fuel lines need to go? Thanks, in advance, for the help!



Read more: scooterdoc.proboards.com/thread/13604/jcl-150a-vacuum-lines-hoses#ixzz4uj5fxVhf

[czmdiver]

Sounds like the Vacuum lines have been eliminated. ?
You do not need all those lines and emissions for the Scooter to run properly.
Please take and post some pictures so I can see what you have going on..

[deanie]

Thanks for the quick response! I am having trouble attaching images. I had written a detailed explanation of my 3 pictures, and can't get them to show up. Am I doing something wrong?

[deanie]

Thanks for the quick response!  I've tried to attached 3 pictures.  I don't know if they will show up, or not.  Anyway, in the image of the canister, there is a large nipple and small nipple on the bottom side.  The large nipple can be seen in the picture.  The small one is hidden.  there are 2 hoses connected to the top of the canister, so I'm assuming they're ok.

In the picture of the bottom of the carburetor, the hose that is shown isn't connected to anything.  This may be a drain hose.  The other port has no hose connected.  I don't know what that hose would connect to.

The third picture shows a hose coming from what I think is the valve cover.  It isn't connected to anything on the other end.

Well...it showed that my pictures were downloaded, but they're not showing up.  I'll keep trying!

[deanie]

Thanks for the quick response! I've tried to attached 3 pictures. I don't know if they will show up, or not. Anyway, in the image of the canister, there is a large nipple and small nipple on the bottom side. The large nipple can be seen in the picture. The small one is hidden. there are 2 hoses connected to the top of the canister, so I'm assuming they're ok.

In the picture of the bottom of the carburetor, the hose that is shown isn't connected to anything. This may be a drain hose. The other port has no hose connected. I don't know what that hose would connect to.

The third picture shows a hose coming from what I think is the valve cover. It isn't connected to anything on the other end.

[czmdiver]

Ok cool
Picture #1 the canister, leave it alone for the right now.

Picture #2 That is a Drain Hose from the Fuel Bowl, the Screw you see opened will drain the Fuel from the Bowl down that hose, Thats all it is is a drain hose and you need to do nothing and it doesn't  even need to be there.
The Fuel Bowl Drain screws corrode so if you don't have to mess with it don't, you will just jack up the Screw Slot.

Picture #3 is the Valve/Rocker Cover Crank Case ventilation, To keep it simple at speed the crank case builds pressure and these Vents keeping the engine from Spewing Oil out of every seal etc. From the Valve cover there can be a slight mist of oil coming from it so at one time it was somehow connected tooth canister to reintroduce that mist in the engine to be used.
You Don't need to do anything to that Valve cover hose other that I recommend it be routed up high or some mount up high and turn into a oil catch can.
I really don't see that you need to do anything, I wouldn't recommend undoing what has been done unless its causing some problem.
Hope this helped

[deanie]

You have been a tremendous help! Just one more question...on picture #2, next to the drain hose, is that a port for another hose, possibly to go to the smaller port on the bottom of that canister? The guy that I bought if from told me that it wouldn't idle well (it was surging...it would idle, then speed up, then idle, then speed up) and had a vacuum leak (bad line, according to him), so he started unhooking a couple of hoses, and eventually just stopped fooling with it. It has been sitting for a couple of years. Thanks, again, for your help and patience!

[czmdiver]

That other Bung on the bottom of the Fuel bowl is just another type of drain used in another application, Nothing to do there.
In Picture #2 the Screw you see on the side of the carb is a Mixture Screw, this can be adjusted to clear up the surging etc.
look up the tutorilas here for Mixture Screw instruction.

[deanie]

Thanks!