Honda C90 - valve lapping

Honda C90 - valve lapping

Doing an overhaul of the engine involves dismantling the cylinder head and inspecting the valves. They will need to be cleaned of any accumulated oil and carbon, but do they also need lapping? Lapping If the valves are worn or pitted due to wear or because they have been poorly adjusted in the past it...

Doing an overhaul of the engine involves dismantling the cylinder head and inspecting the valves. They will need to be cleaned of any accumulated oil...

C90 Engine
Honda C90 - valve inspection

Honda C90 - valve inspection

Here are a few posts on the topic of valve adjustment.  Happily, since the c90 is such a simple engine, it is a good place to learn about these automotive fundamentals.  Here goes! Disassembly Here are the cylinder head parts for the c90 z2.  As you can see the z2 has contact breaker points and...

Here are a few posts on the topic of valve adjustment.  Happily, since the c90 is such a simple engine, it is a good place...

C90 Engine
Honda C90 - engine & hub paint

Honda C90 - engine & hub paint

I used VHT SP995 CAST Aluminium Engine Enamel Paint to paint the engine cases and wheel hubs.  The cases had been repainted once before so I couldn’t really tell if it is a good match or not ( perhaps a bit sparkly? ).  Apparently the original paint used by Honda was called Silver Cloud but I...

I used VHT SP995 CAST Aluminium Engine Enamel Paint to paint the engine cases and wheel hubs.  The cases had been repainted once before so...

C90 Engine
Honda c90 z2 - introduction

Honda c90 z2 - introduction

Introduction Honda’s Super Cub step-through motorcycle is the most successful motor vehicle ever built and a staggering number – well over 100 million – have been sold. I was lucky enough to find a low mileage 1978 C90 for sale a few miles from where I live. It ran for about half a mile before conking...

Introduction Honda’s Super Cub step-through motorcycle is the most successful motor vehicle ever built and a staggering number – well over 100 million – have been...

C90 carburettor