[Travbone618]

My 03 Rincon starts and idles perfect from a cold state. Once the engine warms up it spits and sputters and cuts off. The engine will not crank any more until it’s cold again. Do you think it’s choke related or ecm. Carb was rebuilt a few years ago. This problem just started out of nowhere.

 

[HighColorado+9k]

IMO
It's a carb problem. Electrical problem would always be there.
will not crank any more until it’s cold again Turn over or start?

 

[Travbone618]

IMO
It's a carb problem. Electrical problem would always be there.
will not crank any more until it’s cold again Turn over or start?

When it’s warm it will just turn over. Will not ever really fire off. If you keep trying with full throttle it has a rich smell and will turn the plug black. I originally thought it was a choke problem and put a new cable and se valve on it. Just wanted to ask here before I pull the carb back off. Didn’t know if maybe the TPS sensor was heating up or the ignition pulse

 

[HighColorado+9k]

My 03(bought used) never ran right until I bought a new Honda OEM carb. I had my carb off many times.
rich smell carb

 

[Harley Dog]

The same thing happened to me. I had to buy a new carb. The problem I had was the carb kept dumping fuel out the over fill bowl tube.I replaced the needle and float, but the problem was the needle seat. It is pressed in and can't be replaced. I added a inline fuel filter so the carb wound't get crap in it and ruin the needle seat. No problems since.

 

[Travbone618]

Update on issue. I finally had a chance to pull the carb. There was a lot of trash in it from the bottom side of the air filter which had came apart. I never pulled the filter out because the top looked fine, my fault there. I went ahead and ordered a moose rebuild kit and will update after carb soaks over the weekend.
Thanks for everyone’s help!!

 

[HighColorado+9k]

I wish you luck with the rebuild. Hope it works, it didn't for me and I tried it a few times. A new carb was like a new machine. Cold starts are not an issue, plowed snow yesterday fired right up at 5 degrees.
I'm no stranger to carbs. I was rebuilding carbs in the 70's. I believe age is a big factor so rebuilds will not cure parts that have lost tolerances due to wear. Carbs are a finicky item.
Good Luck

 

[Travbone618]

Thanks man. I debated on buying a new carb but the machine only has 721 miles on it, so I figured I’d get it a shot.