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1993 yamaha 40 2 stroke trim
megawatts	#1  Posted on 06/17/17 - 11:11 AM
Member Posts: 5 Comments: 0 Joined: 06/17/17	just bought a 1991 13 gls with 1993 Yamaha 40 hp 2 stroke. trim works fine on trailer and low speed. can't trim out at high speed. have to trim and take off then back off throttle trim more to get correct trim. I don't pull tubers or skiers just want speed. also suggestion for prop pitch?? thx
Phil T	#2  Posted on 06/17/17 - 1:58 PM
Administrator Personal Page Personal Album Project Albums Posts: 7043 Comments: 6 Joined: 03/26/05	Check the fluid level in the reservoir. If it gurgles when cycling, you have air in the system. You need to bleed it. A Yamaha painted stainless steel prop in the size 10.5 x 13",Part # MARGYT3B0313. Lightly loaded, rigged 2 holes up, wide open throttle of 5500 will get you 34-35 mph. If you select a different make and model, the size will be totally different. 1992 Outrage 17 I 2019 E-TEC 90, Viper 17 2+ 2018 Load Rite Elite 18280096VT
drewread	#3  Posted on 06/26/17 - 6:52 AM
Member Posts: 76 Comments: 0 Joined: 08/22/15	megawatts wrote: just bought a 1991 13 gls with 1993 Yamaha 40 hp 2 stroke. trim works fine on trailer and low speed. can't trim out at high speed. have to trim and take off then back off throttle trim more to get correct trim. I don't pull tubers or skiers just want speed. also suggestion for prop pitch?? thx As per your other thread that was started, I assume that you figured out that the motor likely only has a tilt pump and was not designed to trim the engine at speed.
megawatts	#4  Posted on 06/26/17 - 1:13 PM
Member Posts: 5 Comments: 0 Joined: 06/17/17	yeah I have the tilt only edition sux ! move the motor up to the second from top. cavation plateis at bottom of boat now 2 people plans off asap and no need for trim. trimmed a little started to porpoise. also started with premium gas and amsoil. and had to lean out the idle scews were out 3 turn lol now in 1 1/4 and no smoking lol will gps soon and put tach on next trip out ohh the prop I have on is a 10x15 tapered ear aluminum. no a big round ear thanks for info.