I am a new boat owner first timer, need advice

[davidmh]

I had a Yanmar YSE 8 many years ago. Very good but lacks power. The engine is very simple. doubt if it was used in dumptrucks as it is water cooled. Originally 5hp and used in Japan for many applications.
The fueling system is a Dickler system, very crude and on start up or change of throttle settings you get a blast on smoke as the engine momently over-fuels . it them settles down.

David MH

 

[rlroddie]

I had a Yanmar YSE 8 many years ago. Very good but lacks power. The engine is very simple. doubt if it was used in dumptrucks as it is water cooled. Originally 5hp and used in Japan for many applications.
The fueling system is a Dickler system, very crude and on start up or change of throttle settings you get a blast on smoke as the engine momently over-fuels . it them settles down.

David MH

Well my plan is to get the Exhaust elbow off next Saturday and clean it out, the handbook PDF is brilliant thank you, any none expensive tips how to clean out the elbow is welcome

 

[rlroddie]

Well my plan is to get the Exhaust elbow off next Saturday and clean it out, the handbook PDF is brilliant thank you, any none expensive tips how to clean out the elbow is welcome

 

[Refueler]

Doesn't he have black smoke on start up and idle? Don't think he mentioned running up and down the river, so would that negate the prop theory? Apologies if I've missed something, but my first port of call would be all filters and oil change.

Never said he ran it in water etc. I was just commenting generally ....

 

[Tamar]

Never said he ran it in water etc. I was just commenting generally ....

I think any comments should be specific or it may risk sending the op on a wild goose chase. As stated start simple and eliminate the usual suspects.

 

[rlroddie]

I think any comments should be specific or it may risk sending the op on a wild goose chase. As stated start simple and eliminate the usual suspects.

My plan is

Exhaust elbow
Oil change
Lubricants

from there possibly the injectors-any advice welcome

 

[Tamar]

My plan is

Exhaust elbow
Oil change
Lubricants

from there possibly the injectors-any advice welcome

As long as the smoke clears soon after starting I wouldn't worry too much. These are old engines. But I would change oil and filters as a matter of course

 

[Tranona]

My plan is

Exhaust elbow
Oil change
Lubricants

from there possibly the injectors-any advice welcome

Not sure why you want to disturb the exhaust elbow. As in post#21 these old Yanmars are crude, dirty smelly and put out black smoke because of the crude injector system. If it runs, just change the oil, clean the bottom of the boat and prop then take it for a run. It will be noisy and rattly but will run forever if it has clean fuel.

The experts on old Yanmars are here cornwallmarine.net/member-listings/listing/cellar-marine-ltd

 

[superheat6k]

I had a YSB8 in my last sailing boat - the thing started running on its own oil and oversped violently on sea trial when I was selling the boat.

The boat had never previously 'planed' - Van De Stadt 26' fin keels were never intended to plane. I reckon she got up to 10 knots that afternoon, whilst I struggled to stop the bloody thing. It only did stop when the head gasket blew !

I fixed the engine and amazingly the sale went through, although I was so embarrassed I included a rather nice long shaft Yamaha 8HP outboard.