starting problems

Archived posts from the 2 Cylinder Hondas Yahoo Group
richmccolman
Posts: 39
Joined: Wed Jun 20, 2012 9:47 am

Re: starting problems

Post by richmccolman »

Didn't Mike indicate that it runs fine when another carb is swapped in? If so, it would seem that the problem has to be somewhere in the carb.
Also, doesn't the fuel cutoff solenoid only affect the carb's idle circuit? If so, it would seem that the car would start and run when revved, but not idle properly.
I would think that the problem must be somewhere in the most common area of the carb, around either the inlet into or outlet from the float bowl.
Richard
--- In
2cylinderhondas@yahoogroups.com
, kingtrans@... wrote:
> Check fuel pressure at carb feed hose. possible reversed fuel lines at
> pump.
> Penny Stock Ready to Soar
> Small Stock Set to Skyrocket Over 1,000%
http://thirdpartyoffers.juno.com/TGL314 ... f51st01duc
zinc2u
Posts: 0
Joined: Tue Jan 15, 2013 4:45 am

Re: starting problems

Post by zinc2u »

OK....I'll play your game.
Here is what I know;
a)  You have an engine which works if you put fuel directly into the intake.
b)  You have a carb known to work
c)  You attach the carb to the engine,  and the engine does not fire
I'll assume you connected the carb to the intake manifold correctly (this could keep it from starting) and connected the carb's vacuum hose (although that will not prevent it from starting).   I'll also assume the line from the brake booster to the intake is connected properly or this point is closed off for the test.
Here is what I would suspect;
1.
FUEL :  A problem with the fuel into the carb.    Remove the fuel line into the carb and check the fuel pressure and the fuel.  Did you use fresh gas?  If I suspect a problem in this section,  I'll run my own fuel pump to a can of gas and see if the problem goes away.  If it does,  I have the area isolated.
2.
AIR :  A blocked air inlet into the carb.  Remove the air cleaner cover,  take a look for blockage into the carb inlet.  Remove the air cleaner, leave cover off, and try starting the engine.
3.  The solenoid at the carb is not functioning.  Did you forget to connect the hot wire and the ground wire?
If necessary,  remove the solenoid and see if the plunger moves in and out when activated.  Don't forget to put the o-ring back on the solenoid when installing it.
4.  If all these items check out okay,  I would spray some starting fluid into the air cleaner box and see if the engine starts.  It should since this is very similar to what you did when you sprayed it into the intake.  If it doesn't work with this step,  I would suspect the electrical system.  The voltage is not correct to the points or the voltage at the plugs is not high enough to fire the air/fuel mixture.   Or, possibly,  the starter motor is pulling the voltage too low to get adequate spark.    I would also go back to the line from the brake booster to the intake manifold and look at this...... I would block off this inlet and see if it make a difference.
That's all, folks !!!!
Dale
> OK, lets see who has the right answer to the problem listed > below.
> AN600, removed and cleaned gas tank, new fuel filter and fuel > line, adjusted point gap and timing, 155 psi compression, cam timing is spot > on, new plugs and caps, removed point plate, cleaned and reassembled, fuel > solenoid working fine, valve adjustment is correct also, now here we go, the > car will only run when gas is poured in the intake or a shot of starting fluid > is sprayed in the intake, and the carb was taken off of a daily driver with > zero issues. The correct answer receives a NOS oil filter via pre paid > shipping.
Jefrey
Posts: 4
Joined: Sun Nov 04, 2012 2:32 pm

Re: starting problems

Post by Jefrey »

The problem is gonna be @ the fuel tank right at the gas pick up since the same thing have happened to me and what I did is I cut the tank open and the gas pick up was full of rusted material  ;0) good luck. Jeff Sent from my iPhone
On Nov 4, 2012, at 10:19 PM,
goinhm@...
wrote:
OK....I'll play your game.
Here is what I know;
a)  You have an engine which works if you put fuel directly into the intake.
b)  You have a carb known to work
c)  You attach the carb to the engine,  and the engine does not fire
I'll assume you connected the carb to the intake manifold correctly (this could keep it from starting) and connected the carb's vacuum hose (although that will not prevent it from starting).   I'll also assume the line from the brake booster to the intake is connected properly or this point is closed off for the test.
Here is what I would suspect;
1.
FUEL
:  A problem with the fuel into the
carb.    Remove the fuel line into the carb and check the fuel pressure and the fuel.  Did you use fresh gas?  If I suspect a problem in this section,  I'll run my own fuel pump to a can of gas and see if the problem goes away.  If it does,  I have the area isolated.
2.
AIR
:  A blocked air inlet into the
carb.  Remove the air cleaner cover,  take a look for blockage into the carb inlet.  Remove the air cleaner, leave cover off, and try starting the engine.
3.  The solenoid at the carb is not functioning.  Did you forget to connect the hot wire and the ground wire?
If necessary,  remove the solenoid and see if the plunger moves in and out when activated.  Don't forget to put the o-ring back on the solenoid when installing it.
4.  If all these items check out okay,  I would spray some
starting fluid into the air cleaner box and see if the engine starts.  It should since this is very similar to what you did when you sprayed it into the intake.  If it doesn't work with this step,  I would suspect the electrical system.  The voltage is not correct to the points or the voltage at the plugs is not high enough to fire the air/fuel mixture.   Or, possibly,  the starter motor is pulling the voltage too low to get adequate spark.    I would also go back to the line from the brake booster to the intake manifold and look at this...... I would block off this inlet and see if it make a difference.
That's all, folks !!!!
Dale
> OK, lets see who has the right answer to the problem listed > below.
> AN600, removed and cleaned gas tank, new fuel filter and fuel > line, adjusted point gap and timing, 155 psi compression, cam timing is spot > on, new plugs and caps, removed point plate, cleaned and reassembled, fuel > solenoid working fine, valve adjustment is correct also, now here we go, the > car will only run when gas is poured in the intake or a shot of starting fluid > is sprayed in the intake, and the carb was taken off of a daily driver with > zero issues. The correct answer receives a NOS oil filter via pre paid > shipping.
Post Reply