Suzuki DF115 spun hub type issue....

BillyOCCTX

Recruit
Joined
Apr 12, 2025
Messages
1
2004 df115 4 stroke

Issue - shift into forward and have forward thrust at idle. However when attempt to increase throttle, rpms rev up high but speed/thrust does not increase. HOWEVER when I put it in reverse, it performs as normal, strong reverse.

Have replaced prop hub and now the Lower unit. At idle the motor idles smoothly as normal. Reverse sounds normal. In gear in forward audibly sounds normal. Heck even when the rpms sound normal. I am at a loss what the issue could be! Or what should I try next?! Thanks in advance!!
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
38,411
Sounds like motor is mounted too high.----Model # of the motor ?-----And post the exact height of the transom.
 

cyclops222

Lieutenant Commander
Joined
Mar 21, 2024
Messages
1,962
Is this a sudden new problem ? Like changing motors on the boat ? Or removing motor & putting it back on ? Or a new boat ?
Check if the throttle cable ends are damaged or slipping in 1 direction at either end.
 
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