4 stroke wont start
 

hi!
i tried to start my honda gx-31 for the first time this day, and no matter how i tried, it wont. what can i possibly done wrong or miss to do? i put oil and fill the tank with gas. any thoughts?
thanks a lot

ernest

RE: 4 stroke wont start
 

Ernest,
Sqirt some gas into the intake and try again. Is it getting spark and is it drawing fuel?

Dave

RE: 4 stroke wont start
 

yes it has good spark and fuel lines are ok, i can see fuel going back to the tank thru the return line. what do you mean squirt some gas on the intake? in the carb?

RE: 4 stroke wont start
 

Are you trying to flip start or are you using a starter? This engine has a compression release and just won't start at flip start speeds. However a regular starter at 12v will spin it up just fine. I found that if you prime the bulb on the carb. Turn it over a few times with your finger over the intake, and then run it with the starter for a few seconds it fires right up.

As far as your plumbing goes. I crimped the return line shut, and just run the feed line to the carb's inlet and the tank vent line to free air.

RE: 4 stroke wont start
 

If you are using a starter, can you see fuel coming tward the carb from the tank while cranking it over? I fought with one all day long last summer....turns out my klunk line fell off! DoH!!! Felt pretty silly. Its really hard to diagnose these things without being there, Subarubrat went through that [:@]

RE: 4 stroke wont start
 

it starts fine now, i have the pullstart, it will be used in a boat:D. just needs to open up the throttle a bit.
now ia have another question, how do you take the spring in the throttle off? i figure that the standard servo might not be able to pull the lever with that spring.
thanks for all the help
ernest

RE: 4 stroke wont start
 

Ernest,
The spring is necessary to operate the drum style Walbro carb. It may be possible to use a lighter spring. I have been considering this, but I havn't tried it yet. You may want to do a search on the Honda and see who has used them. Then you could PM the correct person for answers.

Dave

RE: 4 stroke wont start
 

ernest2
There are some benefits to leaving some spring tension. 1) If your throttle linkage broke or came loose the spring would shut down the enging 2) the spring helps to keep the butterfly in alignment with the bore of the carb.

On Walbro carbs (2 stroke engines) I just take a string and pull the spring back away from and down from the attachment to the lever, allow the spring to 'unwind' 1 revolution and slip it back on the lever. The tension is minimal. I use standard servos on the throttle.

RE: 4 stroke wont start
 

oh, ok, i didnt know that. guess i'll have to try first if standard servo will be able to pull the spring.
thanks!