front cylinder doesn't fire
Randy Grein
randygrein at comcast.net
Tue Aug 25 06:04:50 PDT 2009
One terminal only, will try the remainder - as well as re-checking the
CDI as Zoran suggested. I was hoping there was another connection I
missed somewhere; if this doesn't do it there may be a bad (or loose!)
ignitor to replace.
Thanks for the help guys!
Randy Grein, WMRRA #141
On Aug 24, 2009, at 11:36 PM, Ernest Montague wrote:
> clean the inside of the low voltage coils with brake cleaner, pinch
> the connector slightly with a pair of pliers and try. You probably
> have done this.
> On Aug 24, 2009, at 10:19 PM, Randy Grein wrote:
>
>> So have I. (grin) That's why I tested a complete coil - different
>> wire, cap, everything. Same symptoms. What worries me is that
>> there's another connector somewhere else that could be loose, but
>> after checking the schematics I think that's unlikely and the
>> problem is right there at the coil. I'll check more later, getting
>> ready for race weekend.
>>
>> Randy Grein, WMRRA #141
>>
>> On Aug 24, 2009, at 9:53 PM, Ernest Montague wrote:
>>
>>> I've had bad plug wires ( cut them a half inch shorter and screwed
>>> them back on the post), bad low voltage lead caps at the coil, and
>>> bad coils.
>>>
>>>
>>> On Aug 24, 2009, at 9:48 PM, Randy Grein wrote:
>>>
>>>> Yup - It fails the classic external spark plug test - use a spare
>>>> plug, ground it against the engine and look for the spark. It's
>>>> dark now so I repeated and discovered one of the leads was loose.
>>>> It helped when I tightened that connector up (with pliers) but
>>>> still no spark until about 2000 rpm. At least I'm onto something;
>>>> I'll have to check a number of connections to make sure they're
>>>> tight, and maybe replace the sparkplug cap.
>>>>
>>>> Yes, sometimes talking about a problem leads to the solution...
>>>> Randy Grein, WMRRA #141
>>>>
>>>> On Aug 24, 2009, at 9:32 PM, zoran wrote:
>>>>
>>>>> you sure it is spark missing?
>>>>>
>>>>>
>>>>> Thanks
>>>>>
>>>>> Zoran Vujasinovic
>>>>> Twin Works Factory
>>>>> 775-786-4881
>>>>> www.twfracing.com
>>>>> ----- Original Message ----- From: "Randy Grein" <randygrein at comcast.net
>>>>> >
>>>>> To: "SV List" <SV650 at micapeak.com>
>>>>> Sent: Monday, August 24, 2009 9:29 PM
>>>>> Subject: front cylinder doesn't fire
>>>>>
>>>>>
>>>>>> Hardly the first time I've dealt with this, but before I could
>>>>>> always count on it being the cap, wire or coil - or some weird
>>>>>> combination of the three, and intermittent to boot. It will
>>>>>> light once the motor gets to about 5 grand (making for a HELL
>>>>>> of a transition) but otherwise nothing. I grabbed a spare coil
>>>>>> and plug, still nothing. Unless the mounting bracket needs to
>>>>>> be grounded ( getting it out is a bitch with all the cables
>>>>>> there, I just plugged the new one in to test) I'm out of
>>>>>> ideas. Anyone?
>>>>>> Oh, this is my street ride - '02, stock stock stock, about 30k
>>>>>> on the clock. It was riding fine, then dead.
>>>>>> Randy Grein, WMRRA #141
>>>>>>
>>>>
>>>
>>
>
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