xingyue 260t-4 problem By jenningsjosh (Read 9,273 times)

[jenningsjosh]

really nobody has an opinion?

[bhinch]

The CDI either works or it does not. Not sure what the red line on your scoot is but 8500 is pretty tight. The engine seems to be pulling up to the rpm that you say it does, so it should move. My scoot takes the 856-23 belt also, and it has nearly 10 thousand miles on it. It is the original belt and same variator and clutch. When the scoot is on the center stand, does the rear wheel seem to be going super fast, at the rpm you say it runs up to. Just be careful and not have the scoot fall off of the stand and kill someone. Have you checked the gear lube in the transmission and make sure it is full. The belt should move up and down with rpm change.

[jenningsjosh]

the scooter does move... just not to the speed it use to...it only has a 1000 miles on it. it use to do 70 easily... now lucky to get to 55.(downhill with wind on my back) gear lube has been 1000% changed out.. and the belt does move... thanks for input.. but if u read entire thread, these ?'s would have been answered. THANKS!!!

[jenningsjosh]

still nothing? comeon guys I know somebody has to have an explanation for why I cant get up to speed. please

[Alleyoop]

Jennings,
If the motor can reach 8500 RPMS that is WAY OVER the RED LINE BUD For a 2504T. SO saying that IT IS NOT A CDI PROBLEM AT ALL.

When your riding it and it gets to 55mph WHAT are your RPMS?
Alleyoop

[jenningsjosh]

4000 is rpms at max speed of 55 now.. it use to be at 6500 at 70 mph

[Alleyoop]

Well 4000rpm at 55 is nice, but let me ask this once you reach 55mph DOES THE RPMS STILL CLIMB?

If NOT I would check your VARIATOR and WEIGHTS.
Alleyoop

[jenningsjosh]

no it does not climb at all.. dead in water at 4000... weights and variator check out... even the shop took it all apart and cleaned it up... did not help and all looked good.. one more ?... I have had a slight break fluid leak to rear break at engaging handle... could this be the problem? low on fluid= telling computer that break is being applied slightly? or air bubble?

[Alleyoop]

No these are not COMPUTERIZED machines has nothing to do with the breaks leaking a little.

Ok, have you done this-- Put it on the center stand and rev it up and see what rpms it reachs??
Alleyoop

[jenningsjosh]

yes.. 8500 rpms on stand

[jenningsjosh]

the shop says that the "tac" for the rpms is kinda jumpy...and may not be reading correctly.. or the cdi box is not always functioning correctly and not giving the bike enough spark.

[Alleyoop]

That is BULL, they are monkey mechanics, if they cannot tell it is revving that high just by ear they are lacking in knowledge. Also if they were any good they would put on a timing light on it and it would tell them the rpms it is really turning. Yes the tachs on these are not the best in the world and they could read wrong.

So if it reachs 8500 on the center stand then it is not TAKING A LOAD. If you are NOT DOING the work yourself then I feel for you because the shop you have it in does not know enough and they do not know how to test things and diagnose and I feel your wasting your time with them and they are going to charge you a TON for supposedly time spent and not knowing what they are doing and or looking for.

Have they checked the compression if it is low on compression those symptoms would happen. The motor will run good with no load but loose a lot of power with a load.
I was going to put up a picture of what to check on the carb but since your not working on it they are it will not help.
Alleyoop

[jenningsjosh]

Yes Alleyoop the shop does have it. It seems like a good shop though. They have been in business for a long time and have a lot of mechanics. And yes you are correct! they want to charge for even if they don't fix it! Aggravating!! They have had it for 5 weeks now! I just want to be able to tell them what to check and possibly be wrong. They mentioned last time I spoke to them that maybe a new carb might be needed. RRRRRR they are playing a guessing game at my expenses. honestly I might just call it a loss and leave it at the shop!!!! RRRRRRRRRRRR

[jenningsjosh]

They stated to me that the compression is good btw...

[Alleyoop]

being in business for a long time does not mean a nickel, it is the mechanics that count. Most shops I have seen and been in have young kids working on these things. It is very hard to find a shop that has a KNOWLEDGABLE mechanic because they have to pay them a good salary and they do not come cheap. That is why most shops have kids doing the work and if you really check their backroom out and see WHO is working on the scoots you will understand what I am talking about.

I will go up against any so called mechanic I have been doing this for decades and from what you just said FIVE WEEKS and they cannot tell you what is wrong is amazing it goes to show you THEY DO NOT KNOW WHAT THEY ARE DOING PERIOD. Remember these are 1 CYLINDER MOTORS with only a few things that can cause these type of problem and are easy to test each one and find the culprit. But you have to know what part of the system causes the problem and then test each and find the bad boy.

A new carb for a 250 will cost you and Just let me say the CARB on these scoots are SIMPLE and easy to fix and or adjust. IT could be the Diaphgram that is leaking and not allowing the needle to raise out of the main jet, it could be as simple as the throttle cable not opening the butterfly all the way. These things will cause your problem as well.

Have they checked the compression if so what was the compression?
Sorry but your in a pickle if you have the scoot in the shop I WOULD HATE to see your bill.
Alleyoop