Question about Honda CB 100 Motorcycles
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Posted on Jan 02, 2017
SOURCE: engine stutters when turned on
To adjust the throttle position sensor, switch ignition 'on' then disconnect and reconnect the the connection at the TPS. Loosen the TPS fixing screws x2 and swivel the sensor until the rev counter reads 5000rpm.Don't switch the ignition 'off' during the procedure as this sets it back into 'normal' mode. If you can't get a proper reading then it could be the sensor is faulty. The TPS is on the left hand carb spindle.
Posted on Mar 06, 2009
SOURCE: loses spark intermittant
100,000 miles? Maybe rebuild time!! You sure it isn't something simple like a plugged gas tank vent? (Try it with the cap off) Bad plugs? Wires? Coil? Plugged fuel filer or in-tank screen? Are you absolutely sure it's a spark problem and not fuel related?
Posted on Jul 08, 2009
SOURCE: bike wont start
I posted this for a similar problem, maybe it can help. Are you sure it's getting gas to the carbs? Some people don't realize the 99-02 SV650 has a vacuum-actuated fuel pump, and sometimes it can get stuck. Mine has had this problem, and it took me a while to determine it was the problem. I would guess it only happens after the bike has been sitting a while (ours unfortunately sat for a year or so without being run).
Best way to check it is to lift the tank (it's bolted to the frame on the right side of the engine just under the tank). Unplug the line toward the front of the motorcycle from the fuel pump, and connect some spare fuel hose to it running to a can next to the bike (don't want to get gas everywhere!). With everything else still connected, crank the bike for a short period to see if any fuel comes out (shouldn't take long). If not, then move backward and ensure fuel will flow from the vacuum-petcock when the bike is cranked. If that does work, your fuel pump needs some work. I was able to take mine apart and unstick it.
Posted on Oct 01, 2009
SOURCE: Weak ignition spark
Make sure battery is up at least 11 - 11.5 volts
A low battery will spin over and sound like it should when cranking sometimes, but the starter will rob spark from the ignition and not fire due to low voltage
Posted on Jul 17, 2010
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Jun 30, 2015 | Cars & Trucks
Jun 05, 2015 | 1996 Honda Civic
Apr 23, 2014 | Garden
a hot start issue.
be related to low fuel pressure or problem with crank sensor.
it can be weak battery or starter.
possibilities are to be inspected to confirm what exactly it is.------
troubleshoot and confirm the issue,i suggest you refer few solved help links
with similar types of problem like yours:------
the link below:------
not starting or turning over indicates towards multiple possibilities. It can
be issue with battery or weak battery. But if battery checks out ok, then it
can be starter issue or faulty alternator or problem with low fuel pressure or
no spark at spark plugs due to dirty spark plugs or faulty ignition coil or
injectors getting cracked or dirty and needs to be cleaned.
confirm the problem, the basic troubleshooting is required.
start to end troubleshooting these problems I suggest you
to check the help link below and follow its procedure: -----
all types of car no start problems are discussed here with solutions:---
NO START: ENGINE NOT TURNING OVER:
These will help.
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