Question about 1988 Suzuki Samurai
My '88 suzuki samurai starts and runs ok but is limited to about 40 mph. Seems that the engine gets to a certain rpm, (no tach, about 2500 I guess) and then has no more power and won't run the vehichle much faster. When shifting up to 5 gear, vehicle is running so slow (30 or 35 mph) that there issn't enough torque to run in 5th. I checked both ignition timing and cam timing. ok..but I cant find specs to ignition advance. Vac advance works. (about 12 deg) mechanical advance only adds anouther 15 deg at full throtle no load. What should mech advance be? Is distributor rebuildable? Parts availible or just replace distributor?
This had a carb kit put in but not very good results. are there replacement non-emission carbs around?
Do you have any other modifications such as larger tires? The 1.3L engine puts out enough HP and Torque to run the stock size tires, but if you go up to a 31" or larger you will loose the ability to use 5th gear except for downhill runs with a tailwind. The stock carb is just too restrictive and is designed for fuel economy and low emissions.
If you do have stock wheels on it then the stock carb should be able to turn them. The problem may not be in the carburator body itself though. If any of the vacuum lines, solenoids, vacuum switches or EGR on the carb are defective or not hooked up correctly the Little Hitachi carb will not function correctly.
If you don't live in a state that has CARB emission standards then you should go with an aftermarket carb and a set of headders. The Webber is a popular and very easy replacement. Opening up the exhaust to about 2" with a set of headders will allow it to breath well and still have enough back pressure to give you low end torque.
Posted on Dec 27, 2008
Hello, does this vehicle have a catalytic converter? if it does it sounds like it may be obstructed. They do deteriorate/collapse when coming the end of service life and restrict the flow giving too much back pressure, ruining performance. Try removing it I know a noisy test but it will eliminate that problem?
Hope this helps,
Posted on Dec 04, 2008
Posted on Feb 19, 2009
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