Quicksilver 640 Weekender

Lloydroberts

Well-Known Member
Joined
17 Dec 2014
Messages
427
Location
North West
Visit site
Hi, I'm thinking of a sport fisher.....and came across a Quicksilver 640 Weekender with a Mariner 115 EFI outboard.

Absolutely clueless about this boat and engine so any info/advice, good or bad would be appreciated.

Thank you.
 
With that combination of boat and engine expect to get 22-24knts flat out with a nice cruise around 18knts.
I have the Merry Fisher 645 with a 115Hp Suzuki and can't fault it tbh. Similar to the Qicksilver.
Modern 4 stroke outboards are brilliant, you can cruise all day at 6 knots and hardly use any fuel :-)

Boats like this will be effected by loading so try to keep the weight down if you can, they can also be effected by wind as there's very little keel. Something to watch when docking.
 
Although a Quicksilver 640 Weekender is on my list for a next boat I would like a slightly bigger Outboard than a 115.
I had a Jeanneau Leader which is slightly smaller and it had a Mercury 115 Outboard. When I bought it the engine had only done 50 hours and it was out of tune. A specialist I took it to managed to re-tune it, but what I noticed was that it had 4 carburetors, and in my opinion (as an ex car tuner) the engine was tuned up to the maximum to get the 115hp. And it had a small propeller.
I decided that if I bought a similar boat (say a 640 weekender) I would try and get a 150hp with a bigger propeller so the boat would go on the plane earlier. In my (ameteur) opinion a 115 will only just do the job.
 
The max HP for the Merry Fisher 645 is 115.
Not sure what it is for the Quicksilver but suspect it's similar.
Depends on what sort of boating your after.
I find the size and engine combination about right but that's only my opinion.
The limiting factor is the sea state and how you load the boat.
 
Although a Quicksilver 640 Weekender is on my list for a next boat I would like a slightly bigger Outboard than a 115.
I had a Jeanneau Leader which is slightly smaller and it had a Mercury 115 Outboard. When I bought it the engine had only done 50 hours and it was out of tune. A specialist I took it to managed to re-tune it, but what I noticed was that it had 4 carburetors, and in my opinion (as an ex car tuner) the engine was tuned up to the maximum to get the 115hp. And it had a small propeller.
I decided that if I bought a similar boat (say a 640 weekender) I would try and get a 150hp with a bigger propeller so the boat would go on the plane earlier. In my (ameteur) opinion a 115 will only just do the job.

Jim!, how goes it?, just to let you know (and the OP) a 115 is adequate for a Quicksilver 640. I have taught a few peeps on these. a 150 hp is not needed, neither a 'bigger propeller' as you put it. It is the 'pitch' not the diameter that determines how quick a Quicksilver (excuse the Pun)! will get on the plane. As posted by Oscar the performance and handling can be effected by load and wind. As per all small motorboats. Back to the origional question/ questions that Lloydroberts posted/ asked. The Quicksilver is a Brand that is as good as any of that Genre. The Hull/boat is built in Poland I think, if memory serves Me right. The engines are bolted on the blunt end from Japan and and wherever! Good''starter' boats Lloyd. Also the French equivalents like Jeaunneu and Bennetau (bloody french spelling) they are all much of a muchness (bloody english spelling!) and good at what they do. Yes as Oscar24 posted, they can be a bit 'twitchy' when berthing until you get used to this kind of boat but practice makes perfect like any boat or skill/ pastime. Hey Jim@Sea! you will need to change your Forum 'handle' soon--to Jim@ not at Sea!!! You STILL dithering about what boat next Mate!!!!!
 
A guy on my dock has the Quicksilver 640, he is well satisfied with it as he uses it primarily to fish, one thing though, i am not sure but i somewhat remember that the Quicksilver 640 hull does not come fully up out of water on plane, kind of like a half planing boat and not a full planing boat. If no one here can confirm this for sure i can ask him next time we meet at the dock .
 
The 115hp motor was the most popular engine fitted to this Quicksilver, it'll go fine with it.

Before purchase, get a local dealer to give it the once over. Check the engine mounts, power trim unit and injectors; the only things that give any problems really. I'd plan on bunging in a new thermostat too, just to be sure. A good, strong battery will also be an advantage.

Otherwise, a great fishing package for a newbie.

Edit to say, check also when the cam-belt was last changed. About 50 quid.
 
Last edited:
I have a 675 Activ with 200 Verado. (2016)

Great boat, great sea-keeping, fast as hell with 200. Built to a price but that is fine. The 150 Verado did seem underpowered so we upped it to 200. Never looked back.

Love it!
 
They seem very popular and decent boats...only thing that might hold me back, would be the decent market price these days of its better quality and inboard diesel sibling...the Arvor
 
Not sure it would have. I think the equivalent Arvor would be the 215. Looks to have as big or bigger deck space and cabin looks decent too. I’m not exactly sure but I think there are two versions of this. One has a better cabin than he other with the same hull.
 
Top