cdk1
Member
Posts: 17
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Post by cdk1 on May 2, 2017 10:33:47 GMT -5
My wife is the main driver for our machine. We went for a ride yesterday and I complained about her brisk style, but she said she could not help that. The engine responds kind of sluggish when you press the accelerator, then when you take your foot away the revs are still increasing, then the engine slowly returns to idle.
Long ago I drove an English sports car with SU carbs that had a throttle damper to prevent the engine from stalling. The buggy gives me the same feeling but I didn't find such a mechanism. Is this typical for the 800 cc engine?
Under the "hood" there is a black cylinder with fuel lines and a wire connected to it. What might that be? I removed the electrical plug and noted no difference. Do Reepers have the same device?
And then we have been discussing the parking brakes. They seem to use the same brake pads the hydraulic brakes do, but there is no servo so the braking action is a joke. On an incline you need a piece of rock to keep the machine from rolling away. Is this the standard construction?
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Post by lugnut on May 2, 2017 11:57:22 GMT -5
Their is a electric solenoid that holds the throttle in a higher idling position as long as the vehicle is moving for emission purposes. Until the vehicle comes to a complete stop will it shut off. This may interfere with her low speed driving style. It can be unplugged and not used. I don't know where it is on the fuel system butterfly but it is back there somewhere. Find it and unplug it will help with low speed driving abilities. The parking brakes are a little week and need to be adjusted up to work properly. They are nothing more than a coarse thread screw mechanize that ramps up and pushes the brake pad into the disc. Very simple system and sounds like you my need to adjust yours if its not holding. Just adjust the slack out of the cable at the rear of each rear brake caliper. Most of us have replace the springs that push the levers back (with heavier duty ones) when the brake is released. Hope this helps and Happy Motoring  |
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Post by The Fool on May 2, 2017 14:09:34 GMT -5
There is a throttle position sensor that can cause a higher idle. I have heard a couple failing, but isn't common.
They are not a machine that like to be shifted to quick. However if the engine RPM increases when the clutch is disengaged before slowing down then that sensor may be going bad.
I know there are places over there that do ECU computer upgrades as well that may help. I know you said the dealer you purchased from went under.
I don't know of the cross border availabilities, but Quaddix in Germany may be able to help you with the ECU upgrade. That is the name they are sold under in Germany.
You may also want to check the throttle cable movement to make sure it is moving freely. They should be operated clean and dry and do not oil.
If lubrication in needed I would look for a cable lubricant designed to work without collecting more dirt and gumming up.
The black cylinder you referred to under the hood is the fuel filter and should have no bearing on the idle quality. The wire attached to it is a ground wire. I have never quite understood the need for it as most of the system is grounded by means of its mounting.
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cdk1
Member
Posts: 17
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Post by cdk1 on May 3, 2017 8:30:58 GMT -5
It could only be a fuel filter, the wire confused me a bit. For such a tiny engine it is quite a large filter, they probably have very dirty gasoline in China.
The parking brakes may present a problem when we go to the inspection in June. As far as I know there is a minimum braking action required. I don't understand the benefit of heavier springs, that only increases the force needed to pull the lever.
Before letting other people play with the ECU I will attach an ODB-2 device to find out if there are any sensor issues.
Thanks for your help.
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Post by lugnut on May 3, 2017 12:36:37 GMT -5
Their is no ODB-2 plug in for these machines. It is a special plug for a Chery engine only. Their is a diagnostic scanner but it is to expensive to invest in to read simple fuel injection problems. I don't believe its worth the $800 for a hand held device. As your machine gets some miles on it you will notice the brake levers not returning to the released position and will need a little more help to return to that position or you will be dragging the pads and prematurely wearing them. So you can either change them out with a little heaver one or drag the rear brakes. They are very simple to take off and install a little heaver one found at a hardware store. Make sure you buy a stainless or galvanized coated one. Anyway it sounds like you may need to adjust up the brake tension to get it to hold properly. The fuel filter has a ground wire on it to take out static electricity and take it to ground. When fuel is put into a container and expanded it causes turbulence and that turbulence can cause static electricity. Its not common to happen but the potential is there. So that is why the bond strap/ground wire is there. |
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cdk1
Member
Posts: 17
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Post by cdk1 on May 4, 2017 2:58:58 GMT -5
Their is no ODB-2 plug in for these machines. It is a special plug for a Chery engine only. Their is a diagnostic scanner but it is to expensive to invest in to read simple fuel injection problems. I don't believe its worth the $800 for a hand held device. That would be very disappointing. There are two sockets that look like ODB-2, one behind the glove box and another one tied to the ecu. The one behind the glove box doesn't have enough wires to be ODB-2 compliant, the other one may be useful if I can figure out the protocol. There is a similar issue with the diagnostics on my Yamaha outboard, they even use a non-standard plug to make sure you invest in overly expensive diagnostic tools. I hate that! |
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Post by The Fool on May 9, 2017 8:56:16 GMT -5
Kind of what they do here. There is a scan tool for these. It is just very pricey and works only with these engines as far as I know.
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