Author Topic: 1987 Glastron/Carlson CVX-16 (Read 133255 times)

David CVX-16 · « **Reply #200 on:** July 29, 2012, 11:31:49 AM »

One of you should grab this one. It already has a cup and the defect around the cup should be able to be fixed.

http://www.ebay.com/itm/Propeller-Mercury-Outboard-Quicksilver-13-1-2-x-21-Brass-2-Blade-/180937539039?hash=item2a20b7bddf&item=180937539039&pt=Boat_Parts_Accessories_Gear&vxp=mtr

WetRaider, you should be able to swing a 21" pitch with no trouble.

Hyperacme · « **Reply #201 on:** July 29, 2012, 11:46:24 AM »

Thing with props is you don't know what works until ya try em !

4800 rpm's would be below Merc's wot range ... I think ... Dave ?
17P prop should have your motor over reving ... 15P would have piston's leaving block !
Might be a "Link & Sync" problem.
100 lbs. will help, but wouldn't account for that low rpm's/speeds.

I would try this before going with a bow tank ...
Small outboards are very sensitive to weight placement.

Put one fuel tank in back, with a few gal's. of fuel, then place 100 to 150 lbs under bow and test drive.
See how it handles and runs.

Hyperacme · « **Reply #202 on:** July 29, 2012, 12:12:14 PM »

Wish I had $82 Dave !

I'm in need of some oil ... the 115 hp sucks oil and gas like no tomorrow !

Walmart has "Mercury Quicksilver Premium Plus 2-Cycle Outboard Oil, Gallon" for $19.97.
Good deal ?

WetRaider · « **Reply #203 on:** July 29, 2012, 12:21:23 PM »

on paper (or computer monitor), I agree with all of you. When I got the boat, I figured I'd be looking at at least a 19, if not a 21 inch prop. Practical application - this thing puts around like a golf cart. Can't figure it out.

I can say, though, that the gauges the PO supplied me with are not appropriate & the only way I can get the tach to work is to pull my wire from the switch box and terminate at the rectifier. Not sure whether this would cause some inaccuracy. Possible.

For those that met me at Rathbun, I've got the hearing of a 90 year old. When I get up to speed on the lake, my hearing aids pick up the wind noise and I can't effectively listen to the motor. I can hear it running, but wouldn't know if I was getting full throttle out of it or not. Maybe I'll turn it lose with a few of you guys up there and count on other ears and eyes to get me straightened out.

Hyperacme · « **Reply #204 on:** July 29, 2012, 12:33:47 PM »

HUUMMMM ...
Might be your tach ?
After looking for a tach for an older Merc myself ... I know it's not an easy job to find one that fits/works ...

Should be a few I6 experts at Red Wing ...
I'm not one of them ... LOL

David CVX-16 · « **Reply #205 on:** July 29, 2012, 06:29:54 PM »

At WOT on a Merc 115 the RPM's should not be below 5,000.

Gregg, where do you see Walmart selling Quicksilver Premium Plus outboard motor oil for $19.995 per gallon. I'll take three gallons for sure. Regular price is $26.95 and up.

David

Hyperacme · « **Reply #206 on:** July 29, 2012, 06:47:58 PM »

http://www.walmart.com/ip/Mercury-Quicksilver-Premium-Plus-2-Cycle-Outboard-Oil-Gallon/17165286

75starflight · « **Reply #207 on:** July 29, 2012, 07:29:10 PM »

They have it on the shelves here in Nebraska in the automotive department. Thats where I get the 25w-40 quicksilver oil for the starflite. its the cheapest around.

V153 · « **Reply #208 on:** July 29, 2012, 08:11:40 PM »

If'n I can't get my hands on synthetic I generally run Quicksilver Synthetic Blend. "Advanced formula for extreme marine operating conditions" Yup, that's the one for me ... $27 bucks a gal at china mart.

scott r bishop · « **Reply #209 on:** July 29, 2012, 08:45:05 PM »

Quote from: WetRaider on July 29, 2012, 11:19:41 AM

I've looked into an 18/19 gallon tank for the bow, it just isn't going to happen before Red Wing. I'll consider that after I'm a little more confident in the motor.

Do this! We put an http://www.overtons.com/modperl/product/details.cgi?pdesc=Moeller-Marine-Fuel-Tank&i=39527&r=view&from=grid 18 gallon (sorry, can't figure out the hyperlink, html doesn't work apparently) in the bow on our old 150 rebuild and the weight distribution makes a HUGE difference. There's a lot of weight in the rear of those boats (motor, battery, T/T pump, anchor/whatever else ya got) and putting fuel weight in the front made our boat plane out much faster and also ran more 'level' when on plane. I have no clue why they didn't do this stock from the factory; would have made the GT-150 a much more desireable boat in my opinion.

Jerry · « **Reply #210 on:** July 29, 2012, 09:07:33 PM »

Amsoil 100 to 1

David CVX-16 · « **Reply #211 on:** July 29, 2012, 09:17:58 PM »

Gregg, believe that the picture that comes up with your link to Walmart is for the direct fuel injection Mercury oil. The Premium Plus is different. I get a Walmart price of Premium Plus at Walmart of $28 something for the online price. The price also varies by store and by region. Let me know if you find something for $20 in the Twin Cities. I called the 84th and University Walmart and their price was $27.97. Fleet farm price is $26.95.

Eric_Michael · « **Reply #212 on:** July 30, 2012, 02:18:23 PM »

Quote from: Hyperacme on July 29, 2012, 12:12:14 PM

Walmart has "Mercury Quicksilver Premium Plus 2-Cycle Outboard Oil, Gallon" for $19.97.
Good deal ?

My outboard has only ever had Chevron 2-cycle used in it. 20 years old, and has plenty of scoot - even with the swill which is sold as 'gas' these days. So I see no point in even trying a different 2-cycle oil. $95 for a five-gallon bucket at my local fuels/oils shop, or $6+ a quart at retail.

-Eric

Hyperacme · « **Reply #213 on:** July 30, 2012, 08:40:04 PM »

All oils at Walmart ...
http://www.walmart.com/search/search-ng.do?search_query=2+cycle+oil

Mercury Quicksilver Synthetic Blend 2-Cycle Outboard Oil ...
http://www.walmart.com/ip/Mercury-Quicksilver-Synthetic-Blend-2-Cycle-Outboard-Oil/17165294

Quicksilver Premium Plus 2-Cycle Oil, ONLINE ...
http://www.walmart.com/ip/Quicksilver-Premium-Plus-2-Cycle-Oil-Gallon/16565454

David CVX-16 · « **Reply #214 on:** July 30, 2012, 09:43:53 PM »

We could also do sparkplug testing on the water for the best top speed. My Johnson outboard owners manual lists two sparkplugs to use, a Champion L78V (gapless) and a Champion L77J4 (.040 gap). Then we could also test NGK BUHW-2 against the Champion L78V.

The outboard motor came with the L77J4, but I bought a set of gapless L78V at Fleet Farm today at $2.39 per plug and may put them in.

Extra set of sparkplugs came with the Johnson with a label price on the plugs of $.65 each - how many years ago was that?

76bayflite · « **Reply #215 on:** July 31, 2012, 01:23:10 AM »

David, I have found that NGK's work the best in my evinrude and I remember Doug in FL saying he uses NGK irridium, i just get the standard ones.

Jerry · « **Reply #216 on:** July 31, 2012, 01:39:10 AM »

NGK is all I will use in OMC. they just run better.

WetRaider · « **Reply #217 on:** July 31, 2012, 08:45:44 AM »

Not that it means a whole lot here, but when I was into my dirt bike and motocross in my late teens, NGK was preferred, too.

Jason · « **Reply #218 on:** July 31, 2012, 09:32:56 AM »

Anything over Champion! I have had good luck with NGK too.

MarkS · « **Reply #219 on:** July 31, 2012, 10:36:12 AM »

I run the NGK surface gap plugs too, wouldn't think of running anything else. (Personal preference thing, right?) NGK has "rolled" threads as opposed to "cut" threads like most other plugs, and I've never had a problem or issue with them. Interesting note from the Max Rules / Master Tech website though;

Quote

EVINRUDE/JOHNSON MOTORS SHIP WITH CHAMPION SPARK PLUGS. WE RECOMMEND NGK INSTEAD, AND TRADITIONAL ELECTRODE-GAP RATHER THAN SURFACE-GAP PLUGS WHERE POSSIBLE. WE HAVE FOUND THAT THE SURFACE-GAP PLUGS, WHILE LASTING LONGER, SEEM TO HAVE A SLIGHT PERFORMANCE HIT OVER THE STANDARD PLUGS.

http://www.maxrules.com/OMCplugchart.html