Final adjustments
Final adjustments
Nathan,
1-Once boat is well ballanced with one passener up front, trim angle is set to have a perpendicular engine on water, go for a wot spin preferible on flat calm waters, while at perfect plane, sit at transom lower deck, pull your neck and head out transom and visually check water flow where it's passing by with respect to lower tail. That's why you need the man sitting at bow to ballance boat while checking water flow.
If flow is passing over small upper plate will need to lower engine, slightly under upper small plate is the ideal sweet spot , no need to do anything, above AC lower plate will need to lower engine. Will need to place small wooden shims and play a bit with engine heights, and visually inspect each height untill perfect ideal height is matched. Trim should be left where gave you a perpendicular engine, no need to play with it, just ballance, distribute deck weigh upward bow properly and that's all folks!!
2-You can adjust clamps tight by hand and if possible to match both eye clamps facing each other, you can secure engine with a lock ir tie a small rope between eyes to secure motor, if this works well, no need to place extra rope to secure engine as clamps will remain where adjusted and locked.
3-Tohatsu 30 HP definitely comes factory adjusted to 25?, so if you have moved timing from 20? to 25? will need to adjust the following for a perfect carb/magneto timing. Measurements are in mm as shown at bottom pic.
-Place gear lever at forward position, remove cowl.
-Standing up front looking at fuel pump, raise carb pawl fully untill stops, without releasing it, full throttle grip hard enough untill cam meets with white carb roller, you should hear a light bang when parts meet, or move throttle grip back and forward with force to hear that sould, while stopping at that position rotate carb roller with finger, if adjustment is ok, roller must rotate freely. If excesively hard to rotate will ned to adjust stopper A CW a bit untill roller rolls freely. Re adjust locking nut tight.
-Once roller/stopper issue is well set, and without releasing previous position, check magneto timing again, realign if needed to have 25? aligned with both mating surfaces, if with less or more timing, remove black ball joint connector that holds magneto plate and tun round accordingly.
-If you make adjustments without raising carb pawl, just moving throttle grip till the end may find that carb roller most of the time doesn't reach full highest cam hill and definitely will be off some ?, if you raise pawl with finger will confirm what I'm saying, it's a butterfly carb spring tension issue. Will be perfect time to lube 1-2 thick oil drops into every rotaing part between carb and throttle for system to slide much smoother and parts last longer.
-Once done with engine height if needed corrections and re cheking carb/magneto timing adjustments, check max wot rpm, post whatever achieved and how it went.
Happy Boating
is there no rev limiter on these motors??? once i get the tach I can calculate to see which prop i need 
