BF 9.9 Intermittent starting problem after it gets warm

[riverdog01]

I have a BF 9.9 BABS series which starts and runs fine when cold but sometimes when I run it for about 20 mins (happens more frequently after high speed it seems) it will stall out and won't start for about 20 mins. I just bought a shop manual and have just started checking the coils etc. not sure if my multimeter is wacko or if I really need the fluke 88 to get good readings. Pulser coil is giving me .39 @20K setting, primary Ignition coil is giving me .8 -.7 @200 setting, secondary is giving me 29.1 @200K setting.
I don't believe fuel supply is an issue but will be following up more on that when I can get it on the water. I'm in Canada so it won't be for another few weeks, I'd like to get as much done before I can get on the water as possible.

spec says should be:
Pulser 351-429 Ohm
Primary .35-.43 Ohm
Secondary 8.01-9.79 kOhm

Plugs are good.
I just ordered a new thermostat in case over heating is the problem, wondering if there is actually a sensor that will stop it from starting on this engine when it's too hot ? I do have the throttle limiter screw out so it will go faster than original 9.9 setting perhaps that is contributing to the heat issue.

Now that I have the shop manual, I think I know how to take the kill switch out of the equation, just disconnect one of the wire ?

Anything else I should be checking ?

Thanks in advance for any replies.

 

[hondam]

Ignition problems with Hondas are rare, That is a D series (more rounded style) right? Make it still has the fuel expansion chamber under the carburator. This was installed onto the motors to prevent vapor lock. Is it an electric start or manual model, because they have different carburators.

 

[riverdog01]

This has still has the more square style cowl (1998-2000) I believe. It has a manual start.

thanks

 

[hondam]

Ok that motor is a much more simple system. You have to determine if its fuel or fire why its not starting. You can do this by when it quits spray a little starting fluid into the carburator and see if it hits. It it hits you know your loosing the fuel supply. If nothing happens then you have to check the spark.

You do not need a Fluke 88 (I have one its about a $400 meter), although you do need a quality meter with good clean leads, preferably an auto ranging digital one.

An infared thermometer might help determine if its overheating or not.

 

[riverdog01]

Great, thanks. If it is a temperature issue is there something on the engine that prevents it from starting ?

 

[hondam]

Not intentionally, sometimes parts can break down when hot but there are no built in safegaurds that will shut down the motor.