DT30 help

L

lajdesign

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My in-laws got a new boat and gave us their old one. It has a 1994 DT30 on it. I am looking for some direction on a few issues. The boat was not ran much last year, so that might be the cause of the issues. I am a pretty good mechanic, but my last boat was a bayliner with an inboard/outboard, so this is my first outboard.

1. The boat won't go into forward or reverse. My father-in-law said it was tough to shift, but it feels like the shift bar will break first.

2. The middle carb seems to be leaking. I think I just need to order a carb kit. Do you have to pull the whole power head to get to the carburetors?

3. There is hole (maybe nickel size) just to the side of the leading edge of the lower unit. JB weld, Take to repair, or replace casing?

Thanks for the help

Luke

PS- I found a 2 to 225 HP suzuki manual. Are there individual manuals?
 
deejaycee_2000

deejaycee_2000

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Re: DT30 help

1. Might be a faulty pinion gear, but I would first check the clutch dog at the back on the leg, there is a shift rod with a connector there.
2. The middle carb have a stuck needle and no you don't need to pull the powerhead, you just need to remove the air box and take the carb off give it a good clean and it will be fine.
3. Can you take a pic of the hole? If it is just a chip with nothing leaking out of it I would leave it as it is .....
 
9

99yam40

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Re: DT30 help

I would not wast too much time and money on other things until you get it to shift.
Can not use it if it runs but can not shift into gear
Not sure on the manuals for Suzuki, but did you look on Brownspoint.com?
 
L

lajdesign

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Re: DT30 help

deejaycee_2000 said:
1. Might be a faulty pinion gear, but I would first check the clutch dog at the back on the leg, there is a shift rod with a connector there.
2. The middle carb have a stuck needle and no you don't need to pull the powerhead, you just need to remove the air box and take the carb off give it a good clean and it will be fine.
3. Can you take a pic of the hole? If it is just a chip with nothing leaking out of it I would leave it as it is .....
Click to expand...
1. I did see a shift rod on the backside between the lower unit and midsection,but it looked ok. I will research clutch dog.
2. We took off the air box, but there are two bolts down low that could not get socket to. I will try other tools to see what fits.
3. Nothing is leaking from hole. I already put some JB weld on it or I would take a pic.

I appreciate all the help.

Luke
 
TwoRivers

TwoRivers

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Re: DT30 help

lajdesign said:
My in-laws got a new boat and gave us their old one. It has a 1994 DT30 on it. I am looking for some direction on a few issues. The boat was not ran much last year, so that might be the cause of the issues. I am a pretty good mechanic, but my last boat was a bayliner with an inboard/outboard, so this is my first outboard.

1. The boat won't go into forward or reverse. My father-in-law said it was tough to shift, but it feels like the shift bar will break first.

2. The middle carb seems to be leaking. I think I just need to order a carb kit. Do you have to pull the whole power head to get to the carburetors?

3. There is hole (maybe nickel size) just to the side of the leading edge of the lower unit. JB weld, Take to repair, or replace casing?

Thanks for the help

Luke

PS- I found a 2 to 225 HP suzuki manual. Are there individual manuals?
Click to expand...

Luke,
I couldn't tell from your post if your motor is a tiller or remote?
If it's remote your shift cable may be bad.
Good luck
rob
 
deejaycee_2000

deejaycee_2000

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3,447
Re: DT30 help

Drop the lower unit and then see if the lever will shift back and forth, at least then you will know where the problem is and can illuminate from there ... you just need the right spanners to get the carbs off, pulling the powerhead is a mission. I would leave the hole if it's not leaking anything ...
 
L

lajdesign

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Re: DT30 help

deejaycee_2000 said:
Drop the lower unit and then see if the lever will shift back and forth, at least then you will know where the problem is and can illuminate from there ... you just need the right spanners to get the carbs off, pulling the powerhead is a mission. I would leave the hole if it's not leaking anything ...
Click to expand...

Once it gets a little warmer, will drop it and look. JB Weld fixed the hole. The carb seems like something stuck.
Thanks for the help.

Luke
 
J

James R

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2,679
Re: DT30 help

Has this been used in salt water. Is there any oil in the lower unit. Please don't short shrift this motor. The DT 30 is one of the best and most powerful 30HP motors built. The carbs will all need removing, stripping, cleaning and rebuilding with new kits. A two stroke depends on clean carbs to provide fuel and lubrication. Poor lubrication and you have a blown motor. I addition the impeller will need replacing or you will have an overheat. First things first, lets get it shifting.
 
L

lajdesign

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Re: DT30 help

This has been used in salt water (we live on gulf coast). There is oil in the lower unit (drained and changed). When I dropped the lower unit, it was like it freed up and started to move. The problem right now is it will go in reverse and neutral, but not into forward. The shifter actually goes into forward, but not going into gear. The way I check is in reverse it won't spin one way, neutral will spin, and forward should not spin the other way.

Looked at the impeller and it looked ok, it was easy to get to so will most likely change in the spring. Working the carb has gotten rid of the gas leak. Only problem is the big one of not going into forward. Any other ideas? I appreciate all the help.
 
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James R

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Re: DT30 help

It may be as simple as the shift rod coupling nut is out of adjustment
 
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James R

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Re: DT30 help

The coupling is at the front lower just above the lower unit. Two 10mm open ended wrenches. Free up the lock nut and adjust the rod length by rotating the barrel nut to lengthen the rod for forward gear. Make small adjustments until you get it to work correctly If the barrel nut goes tight don't force it as it may be something else causing the problem.If you cannot get the adjustment to do the job you can disconnect the lower shift from the upper shift by unscrewing the barrel nut upward. This will allow you to operate the two halves separately too determine which half is the problem the lower unit or the engine mounted lever mechanism. Try the adjustment first.
 
Last edited:
L

lajdesign

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Re: DT30 help

Ah I have tried to adjust this going till it would not turn more. When I dropped the lower unit had to disconnect it. Maybe I will drop it and try to rig a way of moving it disconnect. We tried when we were looking at the impeller, but it was not budging. Do you know if there is any adjustment at the top of the rod?
 
J

James R

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Re: DT30 help

If the shift rod in the lower unit would not move up and down freely when disconnected from the upper shift rod and when rotating the prop shaft you have a problem inside the gear case. These are tricky to take apart especially having been in salt water. Someone with expertise in salt water issues and this type of Suzuki Lower will be necessary. Alternatively a good used lower will need to be found. Sorry I no longer have one.
 
L

lajdesign

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Re: DT30 help

Thanks. I might play with it some more and also look for the local suzuki repair shop. Thanks for the ideas.
 
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