outboard advice needed - Page 2

arkamelis · 05 March 2018, 11:18

just wanted to ask about compression test, the guy has said its had one done and all four are at 125psi . i can get hold of a compression test, but i once heard when you do one its best to take out all spark plugs and test each cylinder for reading apparently you get a better even compression of the four cylinders this way, rather than doing one at i time, is this the best way ?

Xk59D · 05 March 2018, 11:31

Kill cord unplugged, all plugs out, throttle wide open, done on a warm engine and do each cylinder.

arkamelis · 05 March 2018, 11:37

Quote:

Originally Posted by Xk59D

Kill cord unplugged, all plugs out, throttle wide open and done on a warm engine and do each cylinder.

big thanks Xk59D

Xk59D · 05 March 2018, 11:48

Halfords sell compression gauges if you need one meant to add.

arkamelis · 06 March 2018, 18:43

Hay guys
i brought the outboard and what a monster it is, its huge

think it will for sure push my boat along nicely.the guy i brought it from was really genuine and as looked after the outboard to good standard, started it up and sounded lovely, no knocking or rattling, pumped water well, give me all the ins and outs on maintenance at keeping it in good running order, so very pleased with it.Didn't manage to do a compression test as i could get the kit, but he had one carried out has many people that were interested were asking for the compression, said they were all at 125psi, i do believe him again he was really nice and good reason for selling the outboard ( upgrading to a 150 opti ) picking it up in a few weeks and cant wait to get it fitted and get out on the water in Exmouth again, just wanted to say big thank you to the members for your help and advice, really appreciated. Matt

Xk59D · 06 March 2018, 19:53

I think you will be surprised how much power you have Now, those are probably one of the best engines yam made. Feed them plenty of juice and enjoy.

arkamelis · 06 March 2018, 22:42

thanks Xk59D

davej · 07 March 2018, 00:02

My dive club has a yam v4 2 st from 1994 and it's in perfect condition, an absolutely bril engine, the only part to fail was a switchbox last year, otherwise it's only ever had service parts., which we get at a good price from bhg marine.

They are easy to diy service, and have loads of torque to push or 5,5 tornado rib. We run a couple of props can't rembet the sizes but both Michigan wheel.

Always wash it down and flush, it sounds great just burbles at tick over and roars when it's opened up, we found the Manuel somewhere on the net.

arkamelis · 08 March 2018, 00:35

Quote:

Originally Posted by davej

My dive club has a yam v4 2 st from 1994 and it's in perfect condition, an absolutely bril engine, the only part to fail was a switchbox last year, otherwise it's only ever had service parts., which we get at a good price from bhg marine.

They are easy to diy service, and have loads of torque to push or 5,5 tornado rib. We run a couple of props can't rembet the sizes but both Michigan wheel.

Always wash it down and flush, it sounds great just burbles at tick over and roars when it's opened up, we found the Manuel somewhere on the net.

Thank you davej
some good re insurance there, glad i got the outboard cant wait to get it fitted now.
Thank you Matt

arkamelis · 18 March 2018, 00:48

Quote:

Originally Posted by matata

I have a Bayliner 20'. It had a Force 120 . It finally expired. It was a great engine with loads of bang for water skiing. Was heavy on the juice. I replaced it with a Honda 90. 30kg heavier. Its no good for water skiing.wakeboarding but we get through about a third of the fuel and no oil. It doesn't sound as nice as the Force either. The heavier Honda changed the trim of the boat completely. Stern down. Originally the starter battery (nearly 20kg)was in the stern. I moved it and rewired it to the bow and the boat sits very well. The Honda is 156kg. I would not put anything heavier on the back. The added advantage was that every time the boat set off with the battery in the stern it got covered with a rush of deck water.Now it stays nice and dry. I put it in the front starboard hatch.Hope that helps.Nik

Hi matata i was thinking of doing what you've done with the battery and moving it up to the bow, as it worked out ok for you ? im just a bit worried about moving it there due to how its going to be bouncing up and down surly that isn't a good thing for a battery, im thinking cocktail shaker. don't get me wrong i think it would be good to shift some weight from the stern as this yam v4 is still a heavy outboard. i also now have a 2stroke tank that holds around 10ltrs when full, that i think will be fine to put in the bow. whats your thoughts ?

beerbelly · 18 March 2018, 08:51

i had a v4 130 on the osprey and the remote oil tank was under the jockey seat .cracking outboard for an old girl tho once the carbs had been cleaned out and set up was never a moments bother smooth as silk and very torquey sounded lovely wasent bad on fuel either all things considered .good luck with it

arkamelis · 20 March 2018, 22:21

Quote:

Originally Posted by beerbelly

i had a v4 130 on the osprey and the remote oil tank was under the jockey seat .cracking outboard for an old girl tho once the carbs had been cleaned out and set up was never a moments bother smooth as silk and very torquey sounded lovely wasent bad on fuel either all things considered .good luck with it

hi beerbelly
what size was the ospray ? and what sort of speeds did you get it unto

beerbelly · 20 March 2018, 22:53

I think the osprey eagle was 5.6 metre and it would hit bang on 40 knots on flat water was quite a heavy old thing but solid check out my profile pic

matata · 21 March 2018, 19:59

Hi Arkamelis. I was down at my boat today and Ive taken a photo on my I phone of my battery installation in the bow for you. If you pm me your mob number I can send it from my I phone. I do like a generous battery for starting and I,m sure mine is 110 amp hr.Youll need a similar size. I can check the measurements for you. I put it in a battery box which was bolted in several places to solid sides . I then ratchet strap the battery in. The leads I think I uprated ,because of the distance, to 28mm square. I can check all this for you. The leads go under the helm where I have a battery master switch .It was a bit fiddly but its made a big difference. The battery stays nice and dry.Vibration or pounding isn't a problem. Easy to access.Before I did this ,as I opened the throttle, any salt water on the deck would rush back and flow over the battery in the back. A horrible arrangement!
Your Yam is the same weight as my honda! It will go very well. Moving your 20 litre oil tank might be a little more difficult. My battery is in the front starboard locker. The port locker has a anchor and chain. I reckon put the oil tank where the battery was at the back and you'll be fine. If I can be of any more help just ask. nik

arkamelis · 21 March 2018, 21:29

1990 bayliner capri

arkamelis · 21 March 2018, 21:40

hi nick, my battery is in the right compartment, and junk in the left compartment , so if i was to help reduce weight i again could move battery up to the bow has there is compartments in the cuddy left and right sides, was thinking battery one side and oil tank the other