1997 Suzuki 150dt with fuel issues Help

[tipsup]

I have trouble shooted to the high pressure fuel pump - There are no Suzuki Mechanics in my area so I am a little lost. The problem is not my fuel tank fuel lines or the filter -sepertor & plugs are new. The fuel pump is $500.00 - Lots to spend for a guess- Anyone else had this problem . Good start and idle but an immediate bog when i hit the throttle. The problem has slowly developed in the last 3 days.

 

[Eshaw150]

Re: 1997 Suzuki 150dt with fuel issues Help

did u check the filter on the motor and have done a compression test.

 

[tipsup]

Re: 1997 Suzuki 150dt with fuel issues Help

I changed the fuel filter on the motor to a different inline filter- still with the same problems.

No compression test - I do not think that is neccesary - starts & idles fine - just will not throttle under load- Mechanic that did look at it said best bet is the high pressure pump????

 

[Eshaw150]

Re: 1997 Suzuki 150dt with fuel issues Help

was it acting up before u changed that filter to an in line

 

[tipsup]

Re: 1997 Suzuki 150dt with fuel issues Help

And yes boating is a B-

I found this problem unusual as i just changed the Seperator and the plugs- i wonder if that set it off- I live in BC Canada-that is very non Suzuki - Do you know of any techs that will talk by phone?????

 

[tipsup]

Re: 1997 Suzuki 150dt with fuel issues Help

Yes - i only changed to the different style inline as troubleshooting or eliminating task

 

[Eshaw150]

Re: 1997 Suzuki 150dt with fuel issues Help

not off the top of my head i work on my own stuff
What kind of plugs did u put in it and does sound like a rstriction
Does it stall as u apply more and more throtle. may
also may have problem in the seperator

 

[tipsup]

Re: 1997 Suzuki 150dt with fuel issues Help

yes it does stall the the more you give throttle, however i bypassed all of the original fuel system and hooked up to a day tank -same problem. I changed to the plugs listed inside the cowling and even went back to my origianl seperator- same prob

 

[Eshaw150]

Re: 1997 Suzuki 150dt with fuel issues Help

does sound like a bad pump need to find out what the pressures are sopposed to be and check

 

[tipsup]

Re: 1997 Suzuki 150dt with fuel issues Help

Yes - I agree - the mechanics that were directing the troubleshooting are not Suzuki and they did not have the proper pressure testing equipment as they specialize in Merc engines. Hey THANSK SO MUCH FOR YOUR HELP. IF YOU ARE EVER IN THIS AREA GIVE ME A RING OR CHECK OUT MY WEBSITE www.tipsup.ca

 

[Eshaw150]

Re: 1997 Suzuki 150dt with fuel issues Help

will do

 

[99yam40]

Re: 1997 Suzuki 150dt with fuel issues Help

You should be able to tee in a vacuum/pressure gauge at different points to see what kind of pressures you have and find out if the is a restriction or bad pumps.
A compression check will tell you all cylinders are good or not. A timing light can show you if each cylinder is getting spark when you are having the problem.
These are just some easy things to check and eliminate.