Stuck in Andalusia, Alabama with dead ST

[Ahdrvr]

I am on my way back to Texas from Alabama and 30 miles into the ride the engine coughed once and the check engine light came on. It seemed to work just fine after that so I continued riding. About 20 miles later, while sitting at a stop light the engine started surging, then died. Every time I turn it on it runs for 30 sec to a min then starts surging and dies. I have tried running it with the fuel cap open to see if it was a clogged vent line but tha doesn't make much of a difference. Any ideas, suggestions would be appreciated. Thanks

 

[xr400guy]

Maybe bad gasoline

 

[coastie]

Id have to say if you made an entire trip without doing any mechanical work and you filled up with gas then started to have the problems you have bad gas. Stop at an Autoparts store and get some fuel treatment, maybe that will help. If mechanical work was done during or before the ride, start with checking the items that were touched during the service.

 

[Ahdrvr]

Thanks for the help. I was thinking along the same lines as far as gas. It has been raining in the area for about 36 hours

 

[coastie]

Thanks for the help. I was thinking along the same lines as far as gas. It has been raining in the area for about 36 hours

Yea let us know, I'm to far away to help you physically but I dont have much going on today so I can check back on the forums and try to help as much as I can electronically.

 

[Ahdrvr]

Awesome. Thanks again for the help. She did decide to break down across the street from an advance auto and the wife was following with the truck so she is getting some fuel treatment as we speak. Also considering putting the bike on a trailer and sorting it out at home.

 

[Tremor38]

Most likely a bad fuel pump or bad gas.

 

[joneil]

I had a bike act the same way once, it turned out to be the "sending unit" in the fuel tank.

 

[Ahdrvr]

Sea foam didn't seem to make a difference so it looks like this thing is getting a ride on a trailer

 

[Ahdrvr]

Interesting thing is the engine light went away but the issue is still there. Don't know I they can go back and see what triggered the light in the first place

 

[Don in Lodi]

It does sound like fuel pressure, hunting idle, intake pop...

if you didn't accidentally give it a shot of deezle.

Don't know yet how long these PCM's will store a code. Autos will store a hard code for somewhere around thirty starts with out the problem happening again.

 

[Ahdrvr]

Well I will get this thing back to Texas and start figuring this out. Probably start with fresh gas and see what happens.

 

[fredz43]

I replied to your question on ADV that a friend had his S10 quit while traveling across AR on a trip from TX to KY two weeks ago. He had it towed to a Yamaha dealer and they found the fuel filter clogged. He has over 30k miles on it and had taken a trip to Alaska, so thinks he may have gotten some crap in the gas while on that trip. As I understand it, you have to pull the fuel pump to get to it.

 

[Ahdrvr]

Is the filter replaceable without replacing the entire pump assembly?

 

[sportsguy]

I've driven in Alabama. The bike just knows it should be there. It'll be fine once it land son Texan soil.

 

[markjenn]

Is the filter replaceable without replacing the entire pump assembly?

Not according to Yamaha - the parts fiche just shows a single fuel pump assembly with no replaceable filter. Most assume that there is some kind of internal fuel strainer inside the pump, but I don't think anyone has had one apart yet.

- Mark

 

[fredz43]

I just now sent an email to my friend who had the recent problem that was diagnosed as a fuel filter being clogged. I asked him if they had to replace the fuel pump or were they able to clean/repair the existing one. I'll post when I get a reply from him.

 

[Ahdrvr]

Cool, thanks for all the help. Hopefully new gas and texas air will fix this. If not, I may venture into the fuel pump/filter and I will share anything I find.

 

[RogerJ]

Agree that it sounds like bad fuel, or fuel pump not maintaining proper pressure. Clogged fuel strainer worth a check too. Good luck and please let us know the result.

 

[Mzee]

Please let us know how and when problem is solved.