Zach Nute Posted April 13, 2015 Posted April 13, 2015 Hello everyone. I recently purchased a 1995 Javelin 379T with a 1995 Johnson 150hp fast strike outboard motor (2 stroke). M concern is, that my boat is only a 17-1/2 ft boat and I cant get my boat past 35mph... When I read up on this boat with the same motor on the internet.. Everyone is saying that they're running 60+mph..... Also I can put the throttle down half way before I get any response from the motor. I would love to know what everyone thinks.... Thank you! Quote
Super User gulfcaptain Posted April 13, 2015 Super User Posted April 13, 2015 prop pitch my be too much. What prop and pitch are on it? Quote
Zach Nute Posted April 13, 2015 Author Posted April 13, 2015 prop pitch my be too much. What prop and pitch are on it? I honestly don't know. I can try to find out tomorrow for you.! Quote
Super User slonezp Posted April 13, 2015 Super User Posted April 13, 2015 Incorrect throttle cable, maybe it's too long. Do you have a tach to read rpm's? 1 Quote
Super User gulfcaptain Posted April 13, 2015 Super User Posted April 13, 2015 Both of these are great starting points to look into. Did you not take this thing for a test ride? Always test drive/ride on a boat especially used. Yep you know what this means now Bust Out Another Thousand. But hopefully not. Quote
Fisher-O-men Posted April 13, 2015 Posted April 13, 2015 The response problem does sound like a cable or linkage issue. That could effect the top end as well. Hope it is as simple as that! Quote
CRANKENSTIEN Posted April 13, 2015 Posted April 13, 2015 It could just use a good servicing. Sea foam could help clean it up. Make sure you are using a ethanol free gas Quote
Zach Nute Posted April 13, 2015 Author Posted April 13, 2015 Thank you everyone. I assumed that the throttle cable was the issue. I purchased the boat from a dealer and its still under warrantee. I was just posting on here to see if everyone's thoughts were the same as my own. Again, thank everyone for the responses. Quote
Super User Way2slow Posted April 13, 2015 Super User Posted April 13, 2015 if under dealer warranty, let the dealer handle it. probably improperly adjusted cable. Quote
Bob C Posted April 13, 2015 Posted April 13, 2015 I had that same boat with a 115 motor and it would do 50 plus. It's one of the best boats I've ever had. I miss it. Quote
Covurt Posted April 14, 2015 Posted April 14, 2015 Definitely take it back to the dealer. No way they should have given you a boat that's acting like that. Quote
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