wont start

[14dar]

I have Johnson 35hp 3cyl I just had it rebuilt put all external parts back on all part work when I took it apart now it will turn over and wants to start but won't any ideal anybody

 

[Bosunsmate]

Re: wont start

Check spark on all cylinders.
if thats ok check timing

 

[itsaboattime]

Re: wont start

What is the model number? What year?
Pull the plugs. Are they wet? Is your timing correct? If you squirt a little pre-mix in the carb, will it start?

 

[14dar]

Re: wont start

It's a 2000 j35tel3ssb it has plenty of spark plugs are wet how u go about timing it yes it will run for a little bet

 

[boobie]

Re: wont start

Did you remove the oil tank and mixer on it and bypass it ?? If you didn't, do it !!

 

[14dar]

Re: wont start

Did that tthree years ago

 

[boobie]

Re: wont start

Check the spark with an open air gap spark tester set at 7/16".

 

[Bosunsmate]

Re: wont start

It's a 2000 j35tel3ssb it has plenty of spark plugs are wet how u go about timing it yes it will run for a little bet

Check your primer solenoid isnt flooding it out or that your carbs arent flooding.
Do that by checking your primer bulb holds firm with engine off

 

[racerone]

Re: wont start

Orange / blue is on the top coil ?

 

[14dar]

Re: wont start

Ok will try all get back tomorrow

 

[14dar]

Re: wont start

Ok question on the timing the flywheel set on a key only one way to do it so how do u set the timing I'll throw this at u this motor was a 25hp and I made it a 35hp change jets in carb would this make a different in carb setting and timing

 

[racerone]

Re: wont start

????????------The 35 HP model has bigger pistons and more displacement.----What else was done to this 25 HP motor ?---Timing generally does not need adjustment on these motors.

 

[Bosunsmate]

Re: wont start

Ok question on the timing the flywheel set on a key only one way to do it so how do u set the timing I'll throw this at u this motor was a 25hp and I made it a 35hp change jets in carb would this make a different in carb setting and timing

Yes Just the key sets timing. I always check it as if the key breaks or the powerpack starts failing timing can go out.

 

[Bosunsmate]

Re: wont start

Ok question on the timing the flywheel set on a key only one way to do it so how do u set the timing I'll throw this at u this motor was a 25hp and I made it a 35hp change jets in carb would this make a different in carb setting and timing

Well if it wasnt doing it beforehand id say your jets are too big

 

[boobie]

Re: wont start

What exactly did you do to make it a 35 HP ??

 

[14dar]

Re: wont start

Ok had sleeves bord out to 35 spec new piston change jets in carbs to a 35 hp only this was done that's all there is to make it a 35 hp