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I have a 1987 renken with a merc 120. im having fuel problems. i changed the fuel filters n spark plugs i only have half throttle when i have a load on it but when just in neutral i have all throttle

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Your post is in the wrong category. Look into timing chain loosness, and engine timing issues.

Posted on Sep 06, 2010

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Posted on Jan 02, 2017

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Xr400r's been stood a while, had trouble starting it, changed the plug, now starts easier but bogs on use of the throttle and only runs with the choke on half, changed the fuel cleaned the main jet but...


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I have a 1993 Toyota Marino with a 4aFE engine. it's fuel consumption is very poor, 6.5km/liter. I have changed spark plugs, spark plugs reeds, fuel injectors and nothing changing. I checked the check...


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I have a 1987 wrangler with a fuel injected 6 cyl that will start but will not accelerate. have changed fuel pump & filter, throttle position sensor and air flow sensor. what could the problem be


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Ok again. forget what money i put into it. Right


I dont know if this may help or not but 87-91 jeeps had bulhead and wiring problems at the firewall area,
also had distributor and computer problems. relays were also a problem with tese vehicles. Good luck with your problem

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Fuel problem


first i would cover the basics. change the fuel filter, next change the spark plugs, careful this car takes special spark plugs. probably have to get from toyota. next clean the throttle body, pull air nozzle off and open the butterfly so you can spray throttle body cleaner in their and clean with toothbrush. also dont be alarmed after cleaning the throttle body and changing the fuel filter it will be hard starting, hold the gas pedal half way.

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1987 Chevy Suburban 350 2wd not starting or running right


What size engine do you have in it? And, how many miles on it?? Well, I guess it really doesn't matter. At first thought it sounds like you are experienceing a fuel problem, and changing the throttlebody didn't solve your problem. I would start by looking and checking my fuel delivery system. The fact that you had to spray gas into the throttlebody tells me that fuel is not getting there. I would start with the least expensive thing to fix first. Check your gas filters. These are often , OFTEN, overlooked as a sorce of problems, and are rarely changed and often overlooked, and are the problem alot of the time. If that dosen't cure your problem check your fuel pump. Make sure it is delivering the proper pressure. I would bet your problem would be solved, but if it's not then next I would check the electrical components of your fuel system.

May 12, 2009 | 1987 GMC Suburban

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