1958 evinrude lark 35hp

[jdx6i]

hello all i have a 58 lark 35hp that i got about a year ago and i just have a few ?s about it.. (1) what sould the mix be with the gas?? 32/1? (2) i dont kno much about the older motors but i do love this one but it dont have much for a holeshot. it takes off with a lag and take about 100ft to plane out is this normal? (3) does anyone know where i can get parts for her?? thanks all..:facepalm:

 

[Daviet]

Re: 1958 evinrude lark 35hp

(1) I beleave that the mixture should be 24:1
(2) Is the engine running properly, spark jumps 1/4" air gap and bright blue, compression 100 psi or above and even on all cylinders?
How is the fuel system, carb need to be overhauled?
(3) Ther are a lot of places parts are available. The ignition and carb kits are common. There is a list of salvage yards in the "Top Secret File" at the top of the page for hard to find parts. I am sure others will chime in with more advice for you.

 

[jdx6i]

Re: 1958 evinrude lark 35hp

spark is good and i just did carb on it the float was bad everthing runs great it just takes off slow comp is right at 114 in both cylinders..i will post pics tomorrow when i get home from work.. thanks for the help

 

[1946Zephyr]

Re: 1958 evinrude lark 35hp

114 is good. You might check the point gap and make sure both sets are gapped at .020

 

[lindy46]

Re: 1958 evinrude lark 35hp

How big is the boat? Once it planes, does it seem to run at a decent speed and rpm?

 

[kfa4303]

Re: 1958 evinrude lark 35hp

Yup, 24:1 with Champion J6C spark plugs will do the trick. Also, make sure the motor is adjusted to the correct height on the transom. You want the anti-vent plate to be level, or slightly higher than the keel of the boat. Here's great link that can walk you through an entire tune up from top to bottom. You can get virtually all of the consumable parts you may need right here at iboats. Holler if you get stuck.


http://www.duckworksmagazine.com/04/s/columns/max/24/index.cfm

 

[jdx6i]

Re: 1958 evinrude lark 35hp

the boat is a 13.5ft runs about 30mph with gps.. motor runs good just slow on takeoff i dont kno it its just cause its old and not really made to just make the boat jump right out the water or what. my bout look just like the blue one u have as your pic maybe a little diff but about the same..

 

[lindy46]

Re: 1958 evinrude lark 35hp

yeah, that motor should get up on plane real quick. Check what KFA said - is it possibly a long shaft motor on a short shaft transom?

 

[jdx6i]

Re: 1958 evinrude lark 35hp

 

[jdx6i]

Re: 1958 evinrude lark 35hp

hope these help.. if u want more let me know.

 

[lindy46]

Re: 1958 evinrude lark 35hp

That's a short shaft motor, but can't really see the positioning on the transom of the boat from your pictures. The cavitation plate on the lower unit should be about even with the bottom of the boat or an inch lower. If the motor is positioned correctly, and If you are absolutely sure the carb rebuild/clean is correct, then I'd be looking at the ignition system again - points, condensers and coils. And check the link and synch, which is a little tricky on that particular motor. By the way, that motor should not be run on muffs.

 

[bouttime007]

Re: 1958 evinrude lark 35hp

Try tilting it out one notch, see if it planes faster.

Could be a smidge too low as well like others have mentioned.

 

[kfa4303]

Re: 1958 evinrude lark 35hp

+1. Don't run that motor on muffs. It must be run in a test barrel with water filled to about and inch, or so below the main exhaust port. The height looks ok though.

 

[SlappyWhite]

Re: 1958 evinrude lark 35hp

KFA4303 says "anti-vent plate should be level or slightly higher than keel".
but Lindy46 says "even or an inch lower than keel".
Does the inch either way matter much

 

[1946Zephyr]

Re: 1958 evinrude lark 35hp

I'm with Lindy. An inch lower. That cavy plate has a purpose. And yes, check the ignition system over. How do the coils look? Are they old and cracked? Or have they been replaced? If they're old and cracked, then that is likely your problem. These old motors are quite responsive with a good ignition system and ignition should be up to parr, before laying any blame on carburetion.
Here's my '58 Lark.

 

[kfa4303]

Re: 1958 evinrude lark 35hp

This chart may help with the engine height. I would still suggest you keep it level, or slightly higher than the keel of the boat for best performance. The water intake will be well submerged at low speeds as the boat is naturally stern heavy and the prop will force water up into the water pump at speed, so there is no need for the motor to be too deep in the water. You'll also notice that most engines tend to use jackplates to raise the motor rather than lower it in order to achieve ideal performance, particularly on the top end. Some racers even use shims as small as 1/4" to raise the motor to just the right height. I certainly noticed better performance from my 20 hp when I raised it a few inches from the stock location.


EDIT: Can't seem to access my old pics and/or add new files? Anybody else having this issue :/

EDIT EDIT: here they are

 

[jdx6i]

Re: 1958 evinrude lark 35hp

nice im glad to see someone with the same motor. looks good. i have not took the flywheel off yet so i dont know what it looks like under it but i will get out and see thanks

 

[jdx6i]

Re: 1958 evinrude lark 35hp

im going to go out and take a pic right now someone tell me if motor is good where it is at

 

[1946Zephyr]

Re: 1958 evinrude lark 35hp

perfect.

 

[bouttime007]

Re: 1958 evinrude lark 35hp

Height looks ok, but Id tilt it out one notch.