Thanks for the response, not sure how to reply to you specifically sorry.

Thank you I will try all that tomorrow. Just to clarify by the valve lash do you mean adjusting the clearance on the lifters? We set them with feeler gauges hopefully did it right.

Hi all,

Just got my first side by side a 2015 zforce 800 ex. Quick backstory the dealer replaced the oil pump but too late I guess as both heads needs to be replaced. With help just finished installing them and I believe the timing is right, it ran but idles rough and stalls, need to keep some throttle to it.

Besides general suggestions where to look I have some questions that would really help.

Does the thermostat go on cylinder 1 (rear of bike) or 2? (I think it's a thermostat, the spring thing in the hose that connects them)

I'm getting errors on the air intake sensor, is that the sensor that sits in cylinder 1? I replaced it but no code change.

Also getting error on for manifold intake sensor, I believe this is the mass air intake sensor? I haven't tried cleaning it yet.

Anyway thank you for reading, wasn't really into mechanics when I was younger but starting to learn now and thankful to have father still around to teach me. If anyone can suggest things to check or replace, I'll keep trying.