coil trouble

[Ruffy]

i've just had my 1100 in Pidcocks for a couple of hours and as i thought,the missing at 4000 revs was indeed a faulty coil as i'd thought all along,and has it made a difference or wot! It even ticks over properly as well!

[Jason M]

Is yours a twin spark, or are you talking about the coils on the single. My GS is faultering/stalling/stuttering and generally being a proper BITCH at the moment, and the S is dismantled awaiting rebuilt shocks so I have to ride the COW cos I've got no option . I've ordered some new leads for the GS and I hope it's them that are the problem - just wondered what the symptoms you were getting were

Jason

[oyster]

If a coil breaks up you would notice it while cranking up through the gears; second and third out of a roundabout, missing and farting at about half the rev range - from about 3500 rpm. Unlikely to be leads if you get that sensation, they cause a misfire all the way from tickover and can actually seem ok higher up the rev range.

[Jason M]

If a coil breaks up you would notice it while cranking up through the gears; second and third out of a roundabout, missing and farting at about half the rev range - from about 3500 rpm. Unlikely to be leads if you get that sensation, they cause a misfire all the way from tickover and can actually seem ok higher up the rev range.

I replaced the leads a couple of months ago after the originals went completely tits up and produced random farting throughout the range but especially the bottom. I bought a 2nd hand set from Motorworks and all was fine for a while but now the bike is fitting and even stalling at low revs (which has caused a few 'problems' with a 250kg bike ) so now I'm awaiting a new set from Magnecor and hopefully they'll sort it. They're BRIGHT BLUE so even if they don't work, they'll look nice

Jason

[Ruffy]

wot oyster said were just the symptoms i was getting tho it didn't happen until the throttle was opened aggresively if that's the right way to explain it and the tick over went down when it was hot(100 miles) to 700 revs which is way to low obviously so not being all that familiar with the bike in general the dealer it had to be so now it's all sorted.

[scotty]

An interesting thread.

Just as a matter of interest, is there a way of statically testing the coils/leads with a multi-meter or something or do problems only show up in operation ?

[Ruffy]

There must be a way of testing scotty, coz the workshop only took the bike out once to make sure the coil was performing as it should,so they must have done a test before going out on said bike?

[oyster]

Coil test equipment does exist and it does show those that have a winding gone down. The primary windings of coils are typically about 1.5; 2.5 or 3 ohms, tricky to measure without sensitive kit. Much harder is to prove a coil that breaks down when it is warm. That's when a test ride shows it up; as I said putting the bike under load in the lower gears and taking it up the rev range will reveal the misfire.

[Steptoe]

There must be a way of testing scotty, coz the workshop only took the bike out once to make sure the coil was performing as it should,so they must have done a test before going out on said bike?

very simple test, but it's a trade secret http://www.ukgser.com/forums/showthread.php?t=121654

[Jason M]

There must be a way of testing scotty, coz the workshop only took the bike out once to make sure the coil was performing as it should,so they must have done a test before going out on said bike?

very simple test, but it's a trade secret http://www.ukgser.com/forums/showthread.php?t=121654

Steptoe mate - this isn't like the Tossers forum. We don't do secrets... or self promotion

[Steptoe]

[

Steptoe mate - this isn't like the Tossers forum. We don't do secrets... or self promotion

have a look through most of my previous posts - Most Trying to be of help. Looking back at the post now i can perhaps see how you took it as you did. But it wasn't intended as you think.

If your so serious and get upset at a lighthearted joke, maybe this forum isn't for me.

[scotty]

Thanks Steptoe. I'll have a read through when I get the chance. Its good to build up some knowledge in this area. I have an old 400/4 with a couple of electrical issues that need sorting. One infact relates to a partially broken lead which cannot be replaced separately as the leads join as an integral part of the coil system so if you need new leads you have to buy the coils as well. What kind of naff design is that I tell you ! There is a way of preventing Honda getting a load of money though and that is to cut the lead where the outer rubber skin has split and insert a small nail into the core of each part of the lead then bind tight using electrical insulation tape. Of course if Honda had designed the thing right in the first place you'd just go and buy some new leads and screw these into the existing and perfectly functioning coils.

[scotty]

Hey Jason. I forgot to say, I had a look at your world tour last week and printed off and read the American leg of it. Very entertaining and really well done. I was sitting in Macdonalds on the Friday night sipping a cup of coffee and waiting for my bus and could'nt stop chuckling at some of your descriptions of them. Christ though, how in the hell did you all survive the constant high mileage day after day.

[Jason M]

Hey Jason. I forgot to say, I had a look at your world tour last week and printed off and read the American leg of it. Very entertaining and really well done. I was sitting in Macdonalds on the Friday night sipping a cup of coffee and waiting for my bus and could'nt stop chuckling at some of your descriptions of them. Christ though, how in the hell did you all survive the constant high mileage day after day.

Alright Scotty, thanks. Yanks eh! I have a few American buddies, but not many pass the test

I reckon you just get used to the mileage pretty quickly. There is just so much to see and so much fun to be had that time usually passes pretty quickly. Get's a bit of a bitch when it gets dark cold and rainy and you're still 250 miles from a bed though I think it's hours in the saddle rather than miles though - you could spend all day in the saddle over here and only do 6-700 miles but in the states or Oz you could 1000 easily as long as you don't stop too often for too long. That's the secret. When we did our 1600 mile day the other week I think we were stopped about 2 hours of the 22 hours it took. Sounds a lot I guess but you can easily spend 20 minutes dicking around in a petrol station. We had to stop and get witnesses and do about 7-8 fills too so you just need to be quick and have Red Bull on a drip.

I know people think that you don't see anything if you're just driving all the time. Sure you don't see the detail if you don't stop and look, but you certainly see a hell of a lot. The weather for one. I remember some pretty spectacular storms in particular, but there are a million and one memories over a distances like that. I'm sure we've all got some, and they're priceless

Jason

[snavetrauts]

Jason M... I read your trip write up for January this year... following on from the 2002 experience. Brilliant again... perhaps a little more descriptive this time.... excellent. Picture absolutely fabulous.

I know what you mean about brits abroad too!!!!

Great

Stuart