Hi,
Sorry if this is a repost but I searched and didn't find a similar one.
My buddy bought a brand new 2016 Beta Evo 300 Factory 2T.
Almost immediately it starting running poorly. Then, when warmed up, it would only run with the choke on.
I thought the pilot was clogged. Opened the carb out in the desert and the pilot was clogged, you couldn't see sunlight thru the pilot hole.
I noticed that the O-ring that seals the bowl to the carb had 'goo' oozing out. Please remember this is a brand new, never modified bike.
So we sacrificed some earbud wires and used the thin wires and brake cleaner to get the goo out of the pilot jet.
The goo was on the wires so I know this is what was clogging the pilot jet.
Took out the carb bowl special O-ring [ insert proper name] out of the bowl.
It was covered in a cheap contact adhesive type glue.
I guess they factory, maybe carb manufacturer, had an issue with the gaskets staying in place so they used this cheap glue.
I don't see how engineering would have approved this but I'm just talking out my @ss here.
Cleaned the bowl recess and O-ring and reassembled.
Fired up and ran perfect.
I sent a long email to Beta and never heard back. Not a Thanks for the email or We'll look into it. Told the dealer and they said they never heard of anything like that.
Story continues....
I liked my buddies bike a lot so bought the same exact bike.
Before riding I took carb apart and it had the same issue of the carb O-ring being held in place with cheap contact adhesive type crap.
So I cleaned it all up and reassembled.
I didn't bother emailing and being ignored by Beta again.
Told the dealer and he said he would check one on his showroom floor but I don't know the outcome.
The reason for my post here is to alert you folks so that you do not get into a situation were your bike is running lean.
It thinks its better if it just stops running versus running lean because you cant ruin an engine that's not running.
I cant imagine the fuel or premix was the problem. I was running Motul 800 but have since switched to Liqui Moly.
To me it just seems like a 'shade-tree-mechanic' or 'bootleg' or whatever slang fits in your area fits for poor workmanship and lack of thought.
Well that's it.
Cheers.
tuts