The Fishing Website : Discussion Forums : Merc 90 2S query

The Fishing Website : Discussion Forums : Merc 90 2S query https://www.fishing.net.nz/forum/ Tue, 09 Jun 2026 19:36:00 +0000 Sun, 24 Apr 2022 17:54:29 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.01 360 https://www.fishing.net.nz/forum/RSS_post_feed.asp?TID=136659 <![CDATA[The Fishing Website : Discussion Forums]]> https://www.fishing.net.nz/forum/forum_images/web_wiz_forums.png https://www.fishing.net.nz/forum/ <![CDATA[Merc 90 2S query : Yes - agree. But was good on water...]]> https://www.fishing.net.nz/forum/forum_posts.asp?TID=136659&PID=1825420&title=merc-90-2s-query#1825420 Author: Alan L
Subject: 136659
Posted: 24 Apr 2022 at 5:54pm

Yes - agree. But was good on water today. Had power when I needed it. Boat breaking surf right now if you time it wrong. 2-3m. But had spent some time on the muffs an hr or so prior to leaving. Will see tomorrow.

Alan

]]> Sun, 24 Apr 2022 17:54:29 +0000 https://www.fishing.net.nz/forum/forum_posts.asp?TID=136659&PID=1825420&title=merc-90-2s-query#1825420 <![CDATA[Merc 90 2S query : I wouldn't be surprised if...]]> https://www.fishing.net.nz/forum/forum_posts.asp?TID=136659&PID=1825417&title=merc-90-2s-query#1825417 Author: smudge
Subject: 136659
Posted: 24 Apr 2022 at 4:48pm

I wouldn't be surprised if that changes on the water but I hope it is all good now Alan]]> Sun, 24 Apr 2022 16:48:41 +0000 https://www.fishing.net.nz/forum/forum_posts.asp?TID=136659&PID=1825417&title=merc-90-2s-query#1825417 <![CDATA[Merc 90 2S query : Sorry Bazza - never occurred to...]]> https://www.fishing.net.nz/forum/forum_posts.asp?TID=136659&PID=1825412&title=merc-90-2s-query#1825412 Author: Alan L
Subject: 136659
Posted: 24 Apr 2022 at 2:17pm

Sorry Bazza - never occurred to me. Duuh.

It actually may be right now. Spent some time on it this morning - after Smudge's and KAndrews comments.

Reset the carb tuning, and corrected what looked like a very small unsynch issue. Did not falter this morning and seems to be idling better.

Will know better tomorrow when I brave the surf for my cray pots.

5 snaps today - but slow going and 4 are pannies. But nic day on the water.

KAndrew - I have found a new way of getting the HT leads off - claw hammer, and gardening glove.

Not a hint of a zap perfect.

Alan

]]> Sun, 24 Apr 2022 14:17:59 +0000 https://www.fishing.net.nz/forum/forum_posts.asp?TID=136659&PID=1825412&title=merc-90-2s-query#1825412 <![CDATA[Merc 90 2S query : Alan mate ... the cause of the...]]> https://www.fishing.net.nz/forum/forum_posts.asp?TID=136659&PID=1825411&title=merc-90-2s-query#1825411 Author: bazza
Subject: 136659
Posted: 24 Apr 2022 at 1:52pm

Alan mate ... the cause of the problem is obvious & often encountered with motors that have been used in Sth Africa.

You are almost certain to find your water impeller is chocka full of croc & hippo excrement which clogs up the coolant when cold but becomes supple as it warms up.

There you go .... should have asked an expert in the first place!

]]> Sun, 24 Apr 2022 13:52:23 +0000 https://www.fishing.net.nz/forum/forum_posts.asp?TID=136659&PID=1825411&title=merc-90-2s-query#1825411 <![CDATA[Merc 90 2S query : Excellent - never seen them before....]]> https://www.fishing.net.nz/forum/forum_posts.asp?TID=136659&PID=1825397&title=merc-90-2s-query#1825397 Author: Alan L
Subject: 136659
Posted: 24 Apr 2022 at 7:43am

Excellent - never seen them before. I am on to it.

2 new tools on the way. Vac gauge and plastic pliers.

Alan

]]> Sun, 24 Apr 2022 07:43:40 +0000 https://www.fishing.net.nz/forum/forum_posts.asp?TID=136659&PID=1825397&title=merc-90-2s-query#1825397 <![CDATA[Merc 90 2S query : Alan L wrote:I think I def...]]> https://www.fishing.net.nz/forum/forum_posts.asp?TID=136659&PID=1825389&title=merc-90-2s-query#1825389 Author: Kandrew
Subject: 136659
Posted: 23 Apr 2022 at 8:00pm

Alan L wrote:

I think I def need to be hunting around the carbs,air leaks right now until dead certain. Will also get my timing light and check the ignition to each cylinder.

I need some plastic pliers - I am gun shy of those leads now. Where do you buy those?

Alan

Got mine many years ago but these might be ok.

https://www.tridon.co.nz/products/Toledo/24048/327594/fencing-pliers/409554/spark-plug-lead-and-boot-pliers/428205/302161

These look more like mine, but look for a pair of none conductive pliers

https://www.clydesdale.net/clydesdale-products/tools/product/universal-composite-pliers

]]> Sat, 23 Apr 2022 20:00:35 +0000 https://www.fishing.net.nz/forum/forum_posts.asp?TID=136659&PID=1825389&title=merc-90-2s-query#1825389 <![CDATA[Merc 90 2S query : I think I def need to be hunting...]]> https://www.fishing.net.nz/forum/forum_posts.asp?TID=136659&PID=1825388&title=merc-90-2s-query#1825388 Author: Alan L
Subject: 136659
Posted: 23 Apr 2022 at 7:46pm

I think I def need to be hunting around the carbs,air leaks right now until dead certain. Will also get my timing light and check the ignition to each cylinder.

I need some plastic pliers - I am gun shy of those leads now. Where do you buy those?

Alan

]]> Sat, 23 Apr 2022 19:46:41 +0000 https://www.fishing.net.nz/forum/forum_posts.asp?TID=136659&PID=1825388&title=merc-90-2s-query#1825388 <![CDATA[Merc 90 2S query : Yes you need a proper set of spark...]]> https://www.fishing.net.nz/forum/forum_posts.asp?TID=136659&PID=1825385&title=merc-90-2s-query#1825385 Author: Kandrew
Subject: 136659
Posted: 23 Apr 2022 at 7:09pm

Yes you need a proper set of spark plug pliers for outbourds, mine are all plastic know steel. Didn’t read you had replaced the coil, might need to try a ignition module next but you don’t want to keep buying parts.]]> Sat, 23 Apr 2022 19:09:28 +0000 https://www.fishing.net.nz/forum/forum_posts.asp?TID=136659&PID=1825385&title=merc-90-2s-query#1825385 <![CDATA[Merc 90 2S query : Thats why I got a new coil - and...]]> https://www.fishing.net.nz/forum/forum_posts.asp?TID=136659&PID=1825380&title=merc-90-2s-query#1825380 Author: Alan L
Subject: 136659
Posted: 23 Apr 2022 at 6:35pm

Thats why I got a new coil - and swapped it over between the three. No change.

But I will get my timing light and check the cylinders again. I tried pulling plug leads - and got a massive whack every time - not to be repeated. Even with rubber handled pliers and rubber gloves. My timing light is a more user friendly approach.

Gapless plugs.

I have a carb vacuum gauge on order - will take a few weeks - UK.

I have a shed full of tools. What I save on labour I am happy to invest in tools.

Alan

]]> Sat, 23 Apr 2022 18:35:22 +0000 https://www.fishing.net.nz/forum/forum_posts.asp?TID=136659&PID=1825380&title=merc-90-2s-query#1825380 <![CDATA[Merc 90 2S query : How many hours has it done, sorry...]]> https://www.fishing.net.nz/forum/forum_posts.asp?TID=136659&PID=1825362&title=merc-90-2s-query#1825362 Author: Kandrew
Subject: 136659
Posted: 23 Apr 2022 at 5:17pm

How many hours has it done, sorry just read above you don’t know the hours. Generally a fuel issue won’t be intermittent it will be there all the time. When you first fire it up have you pulled a plug lead to see which cylinders it’s running on. You can use a timing light to see if there’s anything coming down the wire. I used to have a spark plug with a jumper lead lead clip welded on the side so I could clip it onto the engine block then when the engine starts playing up I could stop the engine, plug the lead onto that plug and check the condition of the spark, which should be nice and blue. What do the plugs look like, all burning nice and clean and gapped right.

Fuel system on these engines are pretty bulletproof but the diapharm give a lot of problems that’s why I always go there first. Coils and the trigger can give this type of issue so this is where a marine shop can start to swap parts. Remember engines run much better once warmed up so slightly weak coils will only show up when the engine is cold. ]]> Sat, 23 Apr 2022 17:17:36 +0000 https://www.fishing.net.nz/forum/forum_posts.asp?TID=136659&PID=1825362&title=merc-90-2s-query#1825362