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Post by Pardee on Aug 1, 2014 6:30:40 GMT -5
Let's see what everyone is doing with their TX750, whether it is restoration, customization, or just general maintenance.
Feel free to post a description and picture of your progress, or task-of-the-day.
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Post by Pardee on Aug 1, 2014 6:35:46 GMT -5
My TX has been a rough bike to start for the past year. Continuously killing a new battery, just to get it to fire. I have cleaned the carbs and made adjustments several times. Yesterday, I decided to take the carbs apart again, this time, boiled in lemon juice and going to clean every square inch and part. Here's my progress:  |
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Post by farmrjohn on Aug 1, 2014 14:49:39 GMT -5
Nice orderly looking array, but is the choke/enricher not there?
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Post by Pardee on Aug 1, 2014 15:45:09 GMT -5
Installed the choke before the picture.
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Post by albaljeu on Aug 1, 2014 20:28:56 GMT -5
Justin, one of the biggest problems with these carbs is the choke circuit. The problem is created when the carbs had gas sitting in them for a long time and turns into varnish. It starts with orifice at the bottom of the float bowl, there is a brass tube that extends down from the main body into the area where this orifice is. You have to make sure that orifice is not plugged. I take a flashlight with a single LED bulb in it and shine it in the opening to the orifice which is located in the bottom of the float bowl and look down the passageway where the brass tube goes. If you can't see any light at the bottom the orifice will be plugged. That will make the bike very hard to start. To clear the hole use an acetylene torch tip cleaner, the smallest one you can find, I believe its a .015" wire.
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Post by Pardee on Aug 1, 2014 22:12:08 GMT -5
I will definitely take a look at it tomorrow before I reassemble.
Those areas are very easy to overlook.
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Post by Pardee on Aug 2, 2014 19:55:44 GMT -5
Checked everything. Even adjusted float height. Still no luck. It wants to burp and sputter when there is a full battery, but no luck starting unless I jump thr bike from my truck.
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Post by CalsXS2 on Aug 3, 2014 8:42:59 GMT -5
Is that a cheap K&L rebuild kit. Those needle seat springs are very weak.
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Post by Pardee on Aug 3, 2014 12:01:38 GMT -5
It's a Sigma kit and I wonder if it may be my issue.
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Post by CalsXS2 on Aug 3, 2014 20:05:47 GMT -5
It's a Sigma kit and I wonder if it may be my issue. Are your originals still good. Put them back in and see what happens. I tried an after market kit at first. The spring would not even support the weight of the float. |
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Post by CalsXS2 on Aug 3, 2014 20:37:12 GMT -5
OK. Task of the day. It was supposed to build the forks for my XS2. But there was a major set back. I got a wrong nos fork tube from a dealer, and a incorrectly listed fork off of ebay. Imagine that. So that being said. I acquisitioned the new tire's and fork gators that were going on the XS2. They are now going on the TX.    |
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Post by albaljeu on Aug 3, 2014 22:01:07 GMT -5
Justin, when it does start, how does it run ? If after it starts and warms up will it start again easily and run normally ? I'm trying to determine if your problem is choke related or something else. Have you tried holding your hand on the carb intake while trying to start it ?
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Post by pewe on Aug 4, 2014 5:20:23 GMT -5
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Post by Pardee on Aug 4, 2014 6:27:03 GMT -5
On a full-charged battery, it will spit and sputter and almost start.
I end up killing the battery, just attempting to get it running.
When jumping the battery from a car / truck, the bike will run after a few tries.
After the bike is warmed up, it starts a lot easier as long as it does not sit longer than an hour or so.
Note: I am running shorty mufflers and MikesXS pod filters.
(These pod filters do not block intake ports like Emgo filters)
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Post by pewe on Aug 4, 2014 11:19:34 GMT -5
Seems to be an electrical problem. How is starting with the kick-starter? The electric starter takes a lot of energy so the voltage for the ignition coils might be too low. They cause often problems. For testing you can connect them directly to the battery and measure the voltage with a voltmeter. If its below 9 or 10 V while starting the spark might be to weak for firing.
Greetings
Peter
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