So starting yesterday the bike started running really rough when warm then it will stall at 4k and then it will dies and not start till it cools off. Had been running great til yesterday.

 

dirt in the carbs

imo

 

Can someone post a high res photo from under the tank? I pulled the tank on both bikes but one is a stock California bike and has tons of vacuum hoses and 2 pair control something valves. The other bike pretty much has a crankcase vent hose then another air vent hose that goes nowhere

 

This is a view of the carbs and hoses on the bike stalling

And this is the California model that's getting new motor

 

2nd for dirty carbs/clogged jets. Try running some seafoam through her. 9/10 thatll unclog them, though youll still prob wanna take em off later and give em a proper cleaning.

 

Okay, planning on seafoam and cleaning. But the air vent from carb doesn't really go anywhere? On the other one it does. Looking in Haynes manual and fsm I couldn't really tell from the blow out pictures.

 

yeah the two top air lines that are T in on your CAL model
are left as open vent lines on all other non CAL bikes.

So are you going to pull all the PAIR system stuff off or just
wait until the other motor goes in ?

Pair thread will help you

 

Not sure. I will read thru that thread for sure. My wife's birthday is tomorrow so prob won't work on it too much this weekend