Radders Report post Posted April 26, 2018 Hi, after some advice please, had my 4rt out the last weekend and it wouldn't start, went to take the plug out and the ht lead came straight out of the cap, I managed to bear some of the rubber back and ram it in the cap then sellotape, yes sellotape, it in...I managed three hours solid riding without it missing a beat, now can I just get a new cap or do I need to get one with a ht lead connected to it since bearing the wires back slightly? Share this post Link to post Share on other sites
dan williams Report post Posted April 26, 2018 Typically the replacement caps have a threaded point that screws onto the lead into the center core where the conductor is. Nothing too complex unless Honda has some special weirdness I don’t know about. Share this post Link to post Share on other sites
Radders Report post Posted April 26, 2018 So i can just buy a new cap and screw it straight on the ht lead? Share this post Link to post Share on other sites
jonnyc21 Report post Posted April 27, 2018 Last time I replaced a lead cap it was just a screw on job... I would check the cap you have now and see if it is a screw on type. If so and you have enough extra length on the current lead you should be able to just cut the lead end flat and screw the cap straight on. 1 Share this post Link to post Share on other sites
Radders Report post Posted April 27, 2018 Cheers chaps Share this post Link to post Share on other sites
jackman290 Report post Posted April 27, 2018 I would recommend that you pull the old cap back off and check it with a multimeter to make sure it’s not a resistor cap as well 👍 If the HT lead is long enough, you may be able to cut it back 1/4” and screw your cap back on to it. Worth a shot Share this post Link to post Share on other sites
Radders Report post Posted April 27, 2018 1 hour ago, jackman290 said: I would recommend that you pull the old cap back off and check it with a multimeter to make sure it’s not a resistor cap as well 👍 Right, whats a resistor cap and whats it do mate? Share this post Link to post Share on other sites
section swept Report post Posted April 27, 2018 Stops your ignition signal from ruining Coronation Street.😜 1 Share this post Link to post Share on other sites
Radders Report post Posted April 27, 2018 18 minutes ago, section swept said: Stops your ignition signal from ruining Coronation Street.😜 Coronation street? Is that part of the cylinder head? 😉 Share this post Link to post Share on other sites
dan williams Report post Posted April 27, 2018 Heh heh British television. The cap has a resistor in it that limits the rise time of the spark current. That reduces the radio frequency electromagnetic waves emitted by the wire. So yeah, the BBC thanks you. Share this post Link to post Share on other sites
Radders Report post Posted April 28, 2018 7 hours ago, dan williams said: Heh heh British television. The cap has a resistor in it that limits the rise time of the spark current. That reduces the radio frequency electromagnetic waves emitted by the wire. So yeah, the BBC thanks you. So what you're saying is i might not have to pay my tv licence if I'm doing them a favour by not interfering with the reception 😉 Share this post Link to post Share on other sites
dan williams Report post Posted April 29, 2018 No they’ll charge you a convenience charge for not interfering. That’s how a bureaucracy works. Share this post Link to post Share on other sites
section swept Report post Posted April 30, 2018 On 29/04/2018 at 3:02 AM, dan williams said: No they’ll charge you a convenience charge for not interfering. That’s how a bureaucracy works. Yep and with the money they’ll produce even more dire crap! Share this post Link to post Share on other sites
dan williams Report post Posted May 1, 2018 To be copied in the US. 😏 Share this post Link to post Share on other sites
jackman290 Report post Posted May 2, 2018 It is my understanding that the resistance in the circuit will give longer spark dwell time and also protects the CDI from harmonics getting into the module, which could wreak havoc on the engine timing. I’m not saying it will not run with zero resistance, but it could be a gamble with expensive electronics. This is confirmed by Steve at motoplat 👍 Just wanted to spread the word 1 Share this post Link to post Share on other sites
