Honda BF9 9.9Hp 4 Stroke running problem.

idesign

Seaman
Joined
Jul 12, 2008
Messages
60
Guys i have above motor.It starts in first pull.After it starts it idels for 2-3 minutes and it shuts off.Also when motor starts and i run on full rpm it runs for about minutes then it fires .same sound comes like it comes from car silencer.then motor quickly goes to low rpm and it dies.can any1 tell me what could be problem.also as far i remember it starts only with choke in.
looks like fuel issue.can any1 please help me out.thank you
 

idesign

Seaman
Joined
Jul 12, 2008
Messages
60
Re: Honda BF9 9.9Hp 4 Stroke running problem.

Guys i noticed my fuel tank cap does not have valve knob.it only have fuel guage.could this be problem.pls reply.thx
 

Nick on the Bad Habit

Petty Officer 2nd Class
Joined
Dec 11, 2004
Messages
144
Re: Honda BF9 9.9Hp 4 Stroke running problem.

The fuel tank does need to be vented. try loosing the cap so air can get into the tank.
 

idesign

Seaman
Joined
Jul 12, 2008
Messages
60
Re: Honda BF9 9.9Hp 4 Stroke running problem.

The fuel cap is ok.
Does any1 know what is the problem.thank you
 

idesign

Seaman
Joined
Jul 12, 2008
Messages
60
Re: Honda BF9 9.9Hp 4 Stroke running problem.

Guys i took for test again to lake today.
I noticed there is no water flowing from cooling system indicator.dont know why.may be engine is overheating and shutting off when leaving running idle or on full rpm.can some1 help me what could be the problem.thx
 

bbjunkie

Cadet
Joined
Mar 1, 2009
Messages
17
Re: Honda BF9 9.9Hp 4 Stroke running problem.

You have two options;

Replace the impeller

Take it to a dealer and have them replace the impeller

Once this has been done, then see how it runs.
 
Top