you can play with throttle and keep it running for a little while. sometimes it just sputters a little then dies. I just finished pulling carb apart cleaning it and I am reassembling now. Also I could use some info. on float setting.How long does it run for before it quits? Does it sputter at all before quitting or does it just die?
Could be an ignition or fuel problem.
you can play with throttle and keep it running for a little while. sometimes it just sputters a little then dies. I just finished pulling carb apart cleaning it and I am reassembling now. Also I could use some info. on float setting.
If you can manually operate the pump....the problem is likely in the primer or the cam lobe that pumps the primer. I always go electric to bypass pump, primer and lobe problems. If you need an electric pump number let me know and I can give it to you in a couple of days.thank you for all the help . I put carb together and back on . Started it up it ran alittle while then died, like it ran out of fuel. Started looking around at fuel pump (it's mechanical) it has this little arm at the base of it which has a spring attached to it . If I move this rod back & forth a little, it stay's running. So do I need to replace fuel pump ?
Yes sir I will need that#, if that's the best way to go. And thanks to all that helped.If you can manually operate the pump....the problem is likely in the primer or the cam lobe that pumps the primer. I always go electric to bypass pump, primer and lobe problems. If you need an electric pump number let me know and I can give it to you in a couple of days.
I put a Carter P4070 on mine with a 20 amp fused power supply from the battery and a trigger from the ignition coil to a $6 Power Relay. Wiring Diagram on the relay package. Relay and pump available from Summit Racing -- on line order, 3 day delivery. -DickYes sir I will need that#, if that's the best way to go. And thanks to all that helped.
Thank's Dick. I went and ordered them parts today. I will let you guy's know in a couple of day's how this all turns out. Once again thankyou for all the help. JohnI put a Carter P4070 on mine with a 20 amp fused power supply from the battery and a trigger from the ignition coil to a $6 Power Relay. Wiring Diagram on the relay package. Relay and pump available from Summit Racing -- on line order, 3 day delivery. -Dick
I've had flawless performance from NAPA's # P60504 rotary style pump for at least 10 years on six machines.....wired to "accessory" leg of starter switch. Carter looks good also.Thank's Dick. I went and ordered them parts today. I will let you guy's know in a couple of day's how this all turns out. Once again thankyou for all the help. John
Looks to me like that P60504 is made by Carter for NAPA?????I've had flawless performance from NAPA's # P60504 rotary style pump for at least 10 years on six machines.....wired to "accessory" leg of starter switch. Carter looks good also.
Thank you ,I've been checking out my options & hearing from friends here in Wi. I've been told to just replace the mechanical pump. Still unsure on what I should do.Looks to me like that P60504 is made by Carter for NAPA?????
I vote for the electric pump. I have one on my 440b, as the mechanical pump with the siphon system that this machine uses leads to hard starting and burnt out starters. With the electric pump, I turn the key on, wait about 5 seconds for the pump to prime, then hit the starter. Easy start every time. The mechanical pump only runs when the engine is turning, and does not have much capacity at low rev's. Based on the Wisconsin's suseptablity to vapour lock, I would go with the electric pump. 6brnorma has a whole fleet of M610's with electric pumps.... FWIWThank you ,I've been checking out my options & hearing from friends here in Wi. I've been told to just replace the mechanical pump. Still unsure on what I should do.
the electric is the way to go on a 610 too, the only way they will start quick with the mechanical pump is if you put a outboard motor primer bulb in the line for cold starts.I vote for the electric pump. I have one on my 440b, as the mechanical pump with the siphon system that this machine uses leads to hard starting and burnt out starters. With the electric pump, I turn the key on, wait about 5 seconds for the pump to prime, then hit the starter. Easy start every time. The mechanical pump only runs when the engine is turning, and does not have much capacity at low rev's. Based on the Wisconsin's suseptablity to vapour lock, I would go with the electric pump. 6brnorma has a whole fleet of M610's with electric pumps.... FWIW
For those of you replacing the mechanical pumps on your gas engines I'd recommend adding an oil pressure switch to shut the pump off when the engine is not running. One scenario in which this could be important is in a rollover. In this scenario, the engine dies, the carb needle is open and the fuel pump continues to pump gas onto a hot exhaust system. I see a lot of charred Bobcats for sale. I hope that none of us will ever be caught in one.the electric is the way to go on a 610 too, the only way they will start quick with the mechanical pump is if you put a outboard motor primer bulb in the line for cold starts.
I have a 610 that I am getting ready to do this conversion, and had two questions. The first question is that I have read elsewhere (maybe even on this site) that it is important to keep fuel pressure lower for the Wisconsin VH4D (I believe it may be 4-5 psi) so having an inline pressure regulator seemed to be important. Can you verify if this is an important consideration? The other question I had is that you can either hook up the electric fuel pump independent of the mechanical fuel pump or in series as a booster- what has those that have undergone the conversion done? Thanks.For those of you replacing the mechanical pumps on your gas engines I'd recommend adding an oil pressure switch to shut the pump off when the engine is not running. One scenario in which this could be important is in a rollover. In this scenario, the engine dies, the carb needle is open and the fuel pump continues to pump gas onto a hot exhaust system. I see a lot of charred Bobcats for sale. I hope that none of us will ever be caught in one.
Using the oil pressure sender that way is quite clever.I have a 610 that I am getting ready to do this conversion, and had two questions. The first question is that I have read elsewhere (maybe even on this site) that it is important to keep fuel pressure lower for the Wisconsin VH4D (I believe it may be 4-5 psi) so having an inline pressure regulator seemed to be important. Can you verify if this is an important consideration? The other question I had is that you can either hook up the electric fuel pump independent of the mechanical fuel pump or in series as a booster- what has those that have undergone the conversion done? Thanks.
If you use the oil pressure sender as a shut off won't you lose the priming advantage of a electric pump though? On mine with the mechanical pump I put a outboard motor bulb in the line so for the first start of the day I could fill the carb. Electric would have been nice for that purpose. Just a thought.Using the oil pressure sender that way is quite clever.
You could run another wire from the starter solenoid so the electric pump will run while cranking but be controlled by the sender after starting.If you use the oil pressure sender as a shut off won't you lose the priming advantage of a electric pump though? On mine with the mechanical pump I put a outboard motor bulb in the line so for the first start of the day I could fill the carb. Electric would have been nice for that purpose. Just a thought.