25hp won't start.

[saint]

Motor ran for a little while yesterday,I noticed no cooling water coming from pump,I pulled boat off the lake & pulled hose that water exits,I did find an obstruction in the hose. I hooked up the motor to the garden hose using the muffs.motor still won't run.(not getting any spark or firing.)
Is there some kind of a overheat protection built in,if so how do I reset,or where do I go from here.any input would be great.
It's a 25hp 2 stroke 1994 yamaha.

[mitch]

no reset has it got compression is the stop lanyard in place

[GUVNOR]

Hi, I had the same problem with my 1985 Yamaha/Mariner.

I think its the same engine...let me know the code on your cdi (or switchbox or whatever you prefer to call it) and coil and I may be able to help you out.

New Cdi (if you can get one in the UK) £120ish +VAT

second hand £ 55ish + VAT.

If you have no spark at all or even intermittent spark, I would from my own experience say it is likely to be your CDi that is faulty.

First try new plug to check spark, once eliminated, check resistance at the coil in the primary and secondary windings.

Secondly check the output from the charge coil and the trigger at the stator.

Let me know if it seems to be the CDi as I have a substitute available from my own trouble shooting.

Hopefully, you gave it a kick in frustration and it now works faultlessly rendering my entire post obsolete!!