1976 135hp V4 troubles

[chetcpo]

Boat was given to me after is sank tied to a dock the preceeding year. They dried it out as good as they could and had the carbs gone over, When they took it out it would run great, and then suddenly just start missing and carrying on and run that way the rest of the day. Some days it was wicked fun, others you were putting back to the boat ramp for hours cussing the whole way. I can't tell what's up with it. I replaced a couple coils and got new carb parts to install and then I found that there were a lot of needles and jets missing from the carbs. The pieces I needed aren't in the kit so I need to figure out what goes where and order them.

I was wondering if anyone might know how a boat could run really good at times with haldf the parts missing from the carbs.

I also need a starter if anyone can point me to a place to get a quality cheap one.

Thanks

 

[emdsapmgr]

Re: 1976 135hp V4 troubles

If the engine runs fine on occasion, it is unlikely that the carbs are the root of the problem. Put a timing light on each coil wire when it starts to act up and see if you have strong, contant spark on all 4 wires. Also, squeeze the primer ball when it starts to act up-will force fuel around the fuel pump.

 

[tashasdaddy]

Re: 1976 135hp V4 troubles

here's some info on sunk engines. my point out something
http://www.brokeboats.com/sunk.html

 

[imported_airxsteel]

Re: 1976 135hp V4 troubles

Did the gas tank go under as well? Only hope that they checked this one first. Water in the gas? Just a thought.

Is that a 9 tooth starter or 10?

 

[mikesea]

Re: 1976 135hp V4 troubles

make sure all the spark plug and coil wires have clean ends on them,its possible rusting and corrosion built up on the connections ,check all the grounds to the coils and powr packs,making sure that the crimps on the wires are also good,ive seen the crimps only holding plastic insulation with the actual metal wire having corroded up inside the plastic cover of the wires,be sure to look into all the plug connectios as well,any sign of corrosion ,is a probability of problem,you wonder why it can be ok at times,believe it or not moisture can help make contact at times,an old trick was to take wet cotton and stick it into a car distributer coil wire,as the car warmed up,the moisture dissapated,leaving your unknowing friens or foe with a poorly running engine

 

[ezeke]

Re: 1976 135hp V4 troubles

I'm not clear on your problem, but I am familiar with the 1976 135 engines and the carburetors. The carburetors have fixed high and low speed orifices [jets]. No adjustments. The float bowls have needles to cut off the flow of fuel when the float bowl is full.

If you don't have the parts manual for your specific engine, you can download the parts lists from the BRP site to Excel. You can also download the diagrams.

"http://epc.brp.com/default.aspx?brands=ej&lang=E"