all honesty needed! mercury(yamaha) 90hp 4 stroke performance

[Kracker Jack]

Guys a mechanic in the coastguard. Well taken care of 6 years of its life was spent on smith mountain lake (fresh water) here in virginia. Im intrested to see wht she looks like up close. He has run in brackish water.....still has salt in it but not as bad as true ocean water.

[THEFERMANATOR]

Look VERY closely at the lower unit ESPESCIALLY where the prop goes into the gear case. Suzuki's are NOTORIOUS for corroding in the gear case area and splitting where the propshaft support goes in.

[Kracker Jack]

I always knew the 2 strokes had this gear case issue...but didnt know the 4 strokes did. The only problem i heard from a guy who is the local suzuki guy said a plug in the mid section is where most of the corrosion stemed from on these 4 stroke. I have seen some frakenstien welding done on a 2 stroke lower!!!!

[SkunkBoat]

search my posts for DF140 for details.

I have a 2004 and I love it...but... it did have a known problem with corrosion in the exhaust channel where a steel plug is. The replacement "Engine Holder" part does not have the plug, it is solid aluminum.
That cost me $1800 incl labor.

Recently I replaced all internal engine block anodes. They were due but the block looks fine. You should buy replacements and o-rings before removing the anode covers

I replaced the Idle Air Control Valve last year, causing stalling when backing off throttle fast. The codes of flashing lights on the Multigauge pointed me right to the problem.
Boats.net has all parts and diagrams. I have a pdf of the service manual. pm me.

It is a great motor for the money. It will push your v20 to the mid 30's at wot. 3.5 mpg on 120+ mile round trips at 30 mph.
Turn the key after 6 months in a snow covered field- it starts. Love it.

[Kracker Jack]

I dont remember which one of you is from camden county, NC? Ncgarage? Bluerunner? But the motor is on billets bridge road not to far from one of yall.

[randlemanboater]

You will be very pleased with that motor.

I have not had any problems with mine, I bought it new in 2003.

[smokeonthewater]

Still no word on the 90?

[Kracker Jack]

Originally Posted by smokeonthewater

Still no word on the 90?

No word back from the guy. He had other guys intrested but i think he would atleast call me to tell me it sold.

[Kracker Jack]

Well its official. I own a 140 hp suzuki. So i looked at all corrosion spots nothing to write home about the motor was really really clean. I did the hour meter trick with the analog tach gauge by turning the key on but not starting and the needle on the tach will rise to the rpm that shows the hours on the motor for 3 seconds. Meaning if the gauge rises to 3000 rpm the motor has plus or minus 300 hours on it. Well the needle on this motor went to 2500 rpm.....i almost **** my pants so i did it 3 more times and the same thing...2500 rpms so i called my suzuki tech and said this cant be right! 250 hours! On a 2002. He said the hours from the gauge were always rightand corresponded to his computer. He then said congratulations you have officially hit the motor lottery and have found a cream puff! He then said buy it!!! Buy it Immediately!!! Im so stoked right now!!