The Honda PCX / Forza / ADV150 / SH Forums

Kundalini, Keep a close eye on that coolant. I would check it before every ride until you get a handle on what's going on. If you see it going down and find no external leaks, suspect that the engine is using it. My bike started using it in April. It finely started to not start with a cold engine. W...

itcaptailslow, I changed the coolant after the head gasket failed, and after I found the coolant low in the system, and after I re-torqued the head. I think Fun2scoot may have the best theory of a possible freeze up. Maybe these bikes are filled with coolant at the factory in Asia. It gets pretty co...

Iceman, I did not approach the dealer about the problem. It was a little over a month pass the warranty and I had changed the coolant to a 50/50 mix of a different color coolant. I was still trouble shooting the issue because it was somewhat intermittent for the first month of riding this year. I di...

Sorry Tbln930, I have no idea how to post pictures at this time. I just joined this forum a couple of days ago so have not had time to figure it out. I can give you a description. The gasket was leaking into the cylinder from the head side. The side of the gasket against the cylinder still looked ok...

Well fun2scoot I did think of that and that is a very good theory, but there is no way for me to tell. I never checked it and assumed the dealer would know what they were doing. It would not be the first time Honda has screwed up on a bike that I got from them. Well I ran into another problem today ...

By the way, I still love this little motor scooter!

Thanks for the welcome maddiedog. I did plan on just a thin coat on the new head gasket to avoid the problems you mention. A little more background on this problem. The bike was purchased new a year ago April. I drove 1200 trouble free miles last year and put it away November last year. It came out ...

So I purchased a tube of Permatex 51813 Anaerobic Gasket Maker and plan on coating both sides of the head gasket before reassembly. Any thoughts on this belt and suspenders approach to my problem? I did check the head and the cylinder for flatness and it was all within the .002 tolerance. I don't wa...

I thought I would tell everyone about my current problems with a 2013 150 with a bad head gasket. It showed up this spring with a no start on a cold engine. It got worse as more coolant was leaking into the cylinder which fouls the spark plug. I started to put the bike back together last week but da...

My 2013 manual for PCX 150 says 29 is IACV malfunction. It reads a loose or poor contact of the IACV connector or, the Idle Air Control Valve or its circuit is malfunctioning.