I had just recently had a carb clean a year ago, and an oil change with filter and 2 cap assembly were changed along with the fuel strainer a week ago. Had the problem prior to the tune up and everything worked fine after the tune up for 2 days. Again this morning, warmed up bike and set the choke back and idle was fine, put it in first gear and pulled throttle back and RPM's got to 4k and then major hesitation and then the engine dies. Checked the simple things like air filter and oil and fuel. I don't know if it is electrical and I should replace the last 2 spark plug cap assemblys or if I need to take it in and have a full carb clean again. Please Help
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I take it its a Briggs motor
It sounds like 2 possibilities
1 possible half sheared flywheel key causing out of time conditions
2 carb is dirty not due to your new gas filter but dirt through air inlet and needs to be taken off diassembled and cleaned (carb cleaner and determine all jets and small orfice holes are clean.
Replace the needle and seat in the float chamber. You can try cleaning the carb again this time using lacquer thinners, the only stuff that really cleans the gum that gas turns into when left standing, but consider a new carb kit.
4d56 is a diesel engine, fuel, oil, air filter change definitely,
regular oil change, check tyre pressure, etc all basic things u can do
yourself, after all its no 40+ MPG modern diesel engine its been around
for years and years and being used in courier van, pajero and delica, i
have a Delica with 4D56 turbo and its loves drinking diesel like no
tomorrow, run it on veggie oil like i do you wont worry too much about
your fuel consumption.
have had a few of these in with carb faults but were 2 barrel type.basic checks first,is pcv valve hose under carb not split(runs to valve cover or oil cap on this model?).try driving without airfilter element for test,have had one in that looked clean but had a fine mist of oil on it that blocked and caused air starve and stall on power.Did both problems start at same time? or maybe you are chasing 2 probs.being a ute.I have had probs with rusting petrol tanks and blocked fuel filters
The thing to do now is a fuel pressure test pump could be weak just a few pounds under the recamended pressure will do that weather its mechanical or electrical . Is there a filter in the carb. wear fuel fine hooks? If none of this is an issue at least you can eliminate fuel deliverly as the problem.
Hello, I would change the fuel filter especially if it's never been changed to your knowledge and if the car runs great up untill 4200rpms. If the filter is starting to plug then it will fell boggy and possibly jerky because the motor is being starved for fuel.