Throttle trim switch while trimming up at WOT Boggs motor slightly?

[Hauckster64]

150 Optimax serial # OT 103744
Hello board...my Quicksilver 3000 throttle trim switch while trimming in up position at WOT it Boggs motor slightly and when trim switch is released it speeds back up slightly...In addition, motor seems not to trim all the way up at top speed WOT...ANY suggestions?

[SilverFox579]

Assuming you've checked, cleaned, and tightened all battery connections, what is voltage at the battery after 5mins with engine at idle? Does your battery load test well above engine only minimum required 800 COLD cranking amps by a healthy margin (at least 900CCA)?

Trim symptoms described above can be caused by a weak battery, alternator, or both.

[Hauckster64]

Thanks for the reply...one more item to note...motor stops trimming up around 5100 rpm and will not blow out of continued trimming up like it used to? Brand new 1000cca battery and connections are tight

[EuropeanAM]

Inspect/torque engine mounting hardware, jackplate hardware, and make sure that the jackplate (if any) is "square" to the transom.

Also inspect the striker plates for any grooves or damage.

Any of the above can result in a negative "tuck" that would decrease the total degree angle the trim would achieve.