Suzuki 85

[dwb8466]

I have a S 85 outboard, Cleaned out the carbs. Now it wont run. Have petrol in the pots and a spark at the plugs, any ideas? Please!

 

[jim dozier]

Re: Suzuki 85

If you have spark, squirt some premix into the carb throats and see if it will fire. If you can get it running that way see what happens next. If you have compression, spark, and fuel/air its gotta fire. One of the three is missing.

 

[dwb8466]

Re: Suzuki 85

jimd, We defiantly have compression and fuel / air mix, but out spark is very week. Do you know if the kill switch in a NC or NO circuit?

 

[RustEater]

Re: Suzuki 85

The kill switch is NO, when it kills it shorts the ignition.<br /><br />Cheers,<br />RustEater

 

[dwb8466]

Re: Suzuki 85

if we had a short would this still give e week spark?

 

[BrianinPenicuik]

Re: Suzuki 85

I have a DT55 with similar probs, Fuel in carbs spark at plugs (not a great spark) and comp ok. But still have prob starting.<br />I went down the road of weak spark. Changed plugs charging coil and CDI but still have a poor spark, so maybe the spark on these engines are a bit weak.<br />If you had a short in kill switch then youd have no spark.<br />Let me know if you cure it as it may help me.

 

[RustEater]

Re: Suzuki 85

Brian is right, with a short in the kill switch you would have no spark. <br />One thing jimd left out in his post is that the spark needs to come at the right time. Have you checked that your flywheel key is OK? If the key is sheared, you can get your type of problems. I had the same thing happening with a DT 35, ie. anemic spark and no running. With the key replaced, the spark got fatter and the thing ran like a wild animal.<br />Brian, it is not advisable to add questions to a thread. You'll get more help if you start your own. That said, have you ohmed your coils? The trigger coil should be 180-220 ohms, primary side of the coil should be 0.87-1.17, sec side 5020-6790.<br />Cheers,<br />RustEater

 

[BrianinPenicuik]

Re: Suzuki 85

was only trying to stop dwb from making my mistakes

 

[dwb8466]

Re: Suzuki 85

This is not going to be easy, although I think the fault could be a simple one. I checked through the wiring diagram and came up with that if I disconnected the earth on the kill switch circuit at the engine this would prove the circuit was ok. This was done and the spark got 100% better. Tried to start the engine with earth connected / disconnected, the only way to get it to run was by putting petrol directly in to the pots with the E off. It ran for a good 20 minutes. The only way to stop it was by reconnecting the earth wire. To restart we disconnected the E wire and it started instantly again we reconnected the E wire to stop it but it kept running the only way to stop it was by using the switch. Then it would start and stop with out disconnecting the E. 24 hours later we had to put petrol in to the pots again to start it after 20 minutes turning it on and off a few times with no problems. 15 minutes later it cut-out and would not start. I have now taken the starter motor off as all through this it seemed to be struggling and needed a jump off on the initial starts.