55 hp Chrysler..cant get it to plane out...

DSE35

Recruit
Joined
Jul 2, 2002
Messages
3
I have a 55hp Chrysler,mod.#459 HE, ser.# 3323, 2 cyl. single carb, long shaft, on a '69 Chrysler 14'6" fiberglass boat, which would take a long shaft motor and it starts good, and runs good at idle, when i give it throttle, it picks up rpms good,so it seems, and the motor sounds like its running smooth..But i cant get enough speed to plane it out..actually, i cant get more than 4mph..Ive changed the prop, with a different pitched prop, which didnt make much difference. someone told me, it sounds like its not getting enough gas.. ive run it full throttle, and tried to squeeze the bulb, to see if theres any air in the line, but the bulb ispretty much hard..it doesnt act any different..but every once in a while, the motor will rev a lil faster, and itll get a lil more out of it,and stay that way,when i run it full throttle, but still nowhere enough . And sometimes the rpms run, smooth, then speeds up, then slows down, then speeds up again, till it runs smooth again at higher rpms.. Ive checked the filter, and its clean...and i have a new gas tank, bulb, and gaslines...Im stumped!! I hope this disciption, is understandable, cuz i cant understand this prob..lol..Any help would be greatly appreciated..<br /><br />THANKS....DSE35
 

jasonmcrai

Cadet
Joined
Jun 15, 2002
Messages
6
Re: 55 hp Chrysler..cant get it to plane out...

sounds to me like a carb clogged up or a bad ignition coil
 

norman158

Petty Officer 1st Class
Joined
Jun 29, 2001
Messages
329
Re: 55 hp Chrysler..cant get it to plane out...

pull the fly wheel and check the point gap. needs to be .020 also check your wires comming off the points going to the coils these will break inside the insulation near the stator plate. by the way 459 is a 45 hp
 

sho305

Petty Officer 2nd Class
Joined
Apr 18, 2002
Messages
172
Re: 55 hp Chrysler..cant get it to plane out...

Squirt some gas in the carb or choke it at wot to check for gas. Make sure fuel is pumping.
 
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