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Scooters - Big Bore => Xciting 500 => Topic started by: ClayMation on June 22, 2018, 09:02:52 PM

Title: Possible transmission problem? Take off Symptoms.
Post by: ClayMation on June 22, 2018, 09:02:52 PM: Hi guys,

Strange symptom.

Upon take off at between 0-15 mph I get a lot of vibration on the front end.

So much that it caused the straighter valve in the air valve stem to become lose and leak air.

Potential causes? What part of the transmission might be affected if it is in fact a transmission issue?

Thanks.
Title: Re: Possible transmission problem? Take off Symptoms.
Post by: CROSSBOLT on June 22, 2018, 09:23:02 PM: Straighter valve or Schrader valve? You mean the little spring valve thingy that screws into the tire valve stem?
Title: Re: Possible transmission problem? Take off Symptoms.
Post by: ClayMation on June 22, 2018, 09:44:05 PM: Quote from: CROSSBOLT on June 22, 2018, 09:23:02 PM
Straighter valve or Schrader valve? You mean the little spring valve thingy that screws into the tire valve stem?

Yes, the valve inside the air valve stem where you pump air into the tire.

But that was just a side detail, the main inquiry is regarding transmission. I have an appointment for a diagnostic next weekend but want to go in there armed with knowledge.

Any idea what are some common causes of low end throttle vibration?
Title: Re: Possible transmission problem? Take off Symptoms.
Post by: Stig / Major Tom on June 23, 2018, 12:29:22 AM: My thinking....
Big-time clutch chatter?.....after 15mph clutch locked up and chatter gone?
Front end vibration - and you say it is caused by something in the rear, "the transmission"? Clutch pads glazed might be the easiest and least expensive to fix....unless belt is failing.
Stig
Title: Re: Possible transmission problem? Take off Symptoms.
Post by: MJR on June 23, 2018, 02:15:00 AM: Quote from: Stig on June 23, 2018, 12:29:22 AM
Big-time clutch chatter?.....after 15mph clutch locked up and chatter gone?

Mine was pretty bad, possible.
Title: Re: Possible transmission problem? Take off Symptoms.
Post by: ClayMation on June 23, 2018, 02:39:07 AM: Quote from: Stig on June 23, 2018, 12:29:22 AM
My thinking....
Big-time clutch chatter?.....after 15mph clutch locked up and chatter gone?
Front end vibration - and you say it is caused by something in the rear, "the transmission"? Clutch pads glazed might be the easiest and least expensive to fix....unless belt is failing.
Stig

The drive Belt was prematurely replaced at 10,000 miles, and there was only minor glazing on the original belt. That was about 1500 miles ago. I highly doubt it's the belt.
Title: Re: Possible transmission problem? Take off Symptoms.
Post by: ClayMation on June 23, 2018, 02:39:47 AM: Quote from: MJR on June 23, 2018, 02:15:00 AM
Mine was pretty bad, possible.

Well, would you care to share the solution you came to?
Title: Re: Possible transmission problem? Take off Symptoms.
Post by: MJR on June 23, 2018, 03:22:17 AM: Quote from: ClayMation on June 23, 2018, 02:39:47 AM
Well, would you care to share the solution you came to?

Assuming thats it, http://www.kymcoforum.com/index.php?topic=26145.0 (http://www.kymcoforum.com/index.php?topic=26145.0)
Title: Re: Possible transmission problem? Take off Symptoms.
Post by: ClayMation on June 23, 2018, 03:32:59 AM: Quote from: MJR on June 23, 2018, 03:22:17 AM
Assuming thats it, http://www.kymcoforum.com/index.php?topic=26145.0 (http://www.kymcoforum.com/index.php?topic=26145.0)

Thanks MJR.

Would you be willing to help me determine if this is the case?

I could drive out there next Friday if you're cool with it.

I just don't know how to take stuff apart and all that.
Title: Re: Possible transmission problem? Take off Symptoms.
Post by: MJR on June 24, 2018, 01:43:43 AM: Quote from: ClayMation on June 23, 2018, 03:32:59 AM
Thanks MJR.

Would you be willing to help me determine if this is the case?

I could drive out there next Friday if you're cool with it.

I just don't know how to take stuff apart and all that.

I don't get home till around 5pm.
Title: Re: Possible transmission problem? Take off Symptoms.
Post by: ClayMation on June 27, 2018, 07:35:16 AM: Quote from: MJR on June 24, 2018, 01:43:43 AM
I don't get home till around 5pm.

Would it be inconvenient to you if I got there around 5:30 or 6:00?

If so just let me know, don't want t bug you. I also wanted to see if you felt anything wrong with my bikes performance.
Title: Re: Possible transmission problem? Take off Symptoms.
Post by: MJR on June 27, 2018, 12:50:59 PM: Quote from: ClayMation on June 27, 2018, 07:35:16 AM
Would it be inconvenient to you if I got there around 5:30 or 6:00?

If so just let me know, don't want t bug you. I also wanted to see if you felt anything wrong with my bikes performance.

That would be fine.
Title: Re: Possible transmission problem? Take off Symptoms.
Post by: ClayMation on June 28, 2018, 07:51:33 PM: Quote from: MJR on June 27, 2018, 12:50:59 PM
That would be fine.

Okay I will message you.
Title: Re: Possible transmission problem? Take off Symptoms.
Post by: ClayMation on July 01, 2018, 07:03:11 AM: Thanks again MJR!

It was great to visit you.
Title: Re: Possible transmission problem? Take off Symptoms.
Post by: Stig / Major Tom on July 01, 2018, 12:15:56 PM: Quote from: ClayMation on July 01, 2018, 07:03:11 AM
Thanks again MJR!

It was great to visit you.
Hello here!?
What did the Doc say? Eveything copacetic now?
Stig
Title: Re: Possible transmission problem? Take off Symptoms.
Post by: ClayMation on July 02, 2018, 03:52:26 AM: By the way MJR,

Next time could we please try my bike on the freeway to explore the other symptom I mentioned and perhaps get your opinion on that?

Thanks.
Title: Re: Possible transmission problem? Take off Symptoms.
Post by: MJR on July 02, 2018, 04:41:17 AM: Sure can