Suzuki 2-stroke Problem

[mudcatwilly]

I have a 1990 Suzuki DT 2-stroke (85 hp). Today when I took it out on the water, I would have the throttle set at maybe 3/4 full and all of a sudden, I would hear the motor rev and the boat would slow down. It was like all of a sudden, the gears weren't catching to spin the prop. I moved the shifter back and forth a bit, then the prop would catch and the boat would cruise fine. For what it's worth, on the way back from fishing, I set the throttle at 3/4 full again and it ran great. Has anyone had a similar experience with this type of motor and if so, what may be the cause? Also, the shifter is a bit touchy. In reverse especially, you can hear the teeth of the gears clack unless you really slam it into gear. It does it a little less so when you first shift to forward. Please help!

 

[deejaycee_2000]

Re: Suzuki 2-stroke Problem

It could be that you hit something under the water, but you can adjust the throttle links to get it to shift better ....

 

[mudcatwilly]

Re: Suzuki 2-stroke Problem

How do I adjust the trottle links?

 

[Silvertip]

Re: Suzuki 2-stroke Problem

Before you begin messing with things, you need to determine what's actually happening. Throttle links are the last thing you want to adjust. First, using a sharp object (like an awl) scribe a line on the inner and outer part of the prop hub. Run the engine until the problem occurs. Then check to see if the lines are still lined up. If not, the rubber separating the prop hub from the outer part of the hub has sheared so the hub spins inside the prop. If that's not the problem, then you need to take a look at the shift linkage and cable adjustment. Disconnect the shift cable from its attachement point at the engine. Move the shift linkage either fully forward or fully backward. Then move it one notch in the other direction. That should be neutral. With the throttle lever on the control box in neutral, bring the end of the shift cable back up to its attachment point. Do not push or pull anything in an attempt to line this up. If the cable does not line up exactly with the attachment point on the linkage, turn the trunion (threaded barrel on the the cable) until it does line up. Attach the cable and try that. If this doesn't solve the problem, the lower unit needs attention and its probably the clutch dogs that have become worn.

 

[grouperbob]

Re: Suzuki 2-stroke Problem

i just rehubbed my prop last week on 1988 dt 140. $42.75

 

[todd77]

Re: Suzuki 2-stroke Problem

I have a 1979 dt 65 suzuki 2 stoke
I rebuilt fuel pump carbs all new gas line . all it dose is start and die one day i had it on the lake ran fine stoped to put tube in water it started but died there is fuel in the lines