nubsey

Not so sure about the ohms readings now. Just got a new coil and it also shows 0 ohms on primary, and 6 ohms on secondary coils. So check your manual perhaps.

New coil no good. Hi all the new coil arrived to day. It shows much the same readings on the multimeter as the old coil. It also will not give a spark. I do get a spark when the HT wire is held close to the cylinder head, but it looks a bit weak. I am starting to lose the will to live. Will try checking all the connections, but half of them you cannot get to, and still to find the cdi unit. Really need an expert on this as it might be a bit beyond me. Still the grandson is still a bright spark and thinks that granddad can fix it. HELP Nubsey

Thanks for that Nubsey

Nubsey here, just a quickie. Have filled up the radiator with coolant. How much should it take. I have got about 1/2 a litre in to it, and thats all. What would you expect it to take. Perhaps when we get it running it will bleed the system. All the est Nubsey

Hi all Nubsey here. Yes the Grandson is available for hire to check for voltage/current. I think that this is quite a simple problem. The trouble is none of us are there. Sorry for the old time terminology, but you have just dropped the bike. Stick with the basics. Can you check the spark plug, I.E. stick it in a lawn mower or another bike. If that works. Do you have a multimeter. Yes then take the wire from the primary coil, that is the small one to the coil. put the multimeter between that and earth. Give the bike a kick. {With the kickstart of course} and see if the meter moves. If it does then great, you have voltage to the coil. Now check out the high tension side.forget a spark plug can you get the big wire from the coil, to reach the cylinder head, or some other earth. If so hold it near to it and give the bike another kick. Is there a spark. Remember, just work your way backwards. Start with the plug, and work back to the start of the ignition system. I guarantee that it is something very simple. For checking the coil. You should get about 5 ohms on the primary side. Yes the little wire. And about 10,000 to 14,000 on the secondary side. But I have never known coils to go down before . Although with my gas gas it could be a first. If you do not have a multimeter. grab the wire to the primary side of the coil. Wet your fingers put your hand on the tank, and kick over. Do you fell a tingle. It is only a few volts. Or buy a cheap multimeter. Nubsey

Yes. Must do. It also looks a bit loose, so must adjust. It seems to have some lube on it. I ride a bike which is shaft driven. Much easier. Nubsey

Thanks chaps. As to adding piccys there should be a bit saying drag files or choose files, just click there and stick them on. Nubsey.

I have just got a gas gas 125 for the grandson. I have also purchased a Dave Cooper tow bar bike rack, to carry the bike. Question is, what is the best way to secure the bike to the rack for transportation on the back of my car. I have two smallish rachet straps and one large one as used by lorry drivers to secure a load. Cheers Nubsey

Thanks a lot lads, Here are piccys, so I assume all is ok. Just need to get the bike going and fit a lanyard type cut-off switch/

Why not just ride over the obsticale backwards. LOL

Opps sorry. I am in the good old United Kingdom. Actually England. Yes a Pom. See the trouble these regulators make.

No need to replace seal quite often. Try this trick. It has worked every time for me. Trust me it works and save a lot of time and money. Made my cleaner out of a butter pack top.

Also might be the coil starting to break down

If like me you are that age, just buy a nice white boiler suit. I was good enough for Jackie Stewart, then it's good enough for me.

I have just got a gas gas 125 for the grandson. I have been looking at the regulations, and it states that it must have a lanyard kill switch. That is no problem. But it also staes that it should have a chain guard. Well I have trolled the internet, and can find no specifications for them. The bike has a small guard by the front sprocket, and also a small guard on top of the chain. But is this enough. DOES ANYONE KNOW WHAT THE REGS ARE. i AM HOPING WHEN WE GET THE BIKE GOING TO TAKE HIM TO A LOCAL MEET, BUT WOULD HATE TO HAVE TO COME HOME BECAUSE HIS BIKE IS NOT UP TO SPEC. aLL THE BEST nUBSEY PS Sorry about the cap lock

Hi all, I dare say I was to report before diving straight into the melee. Anyway, name is Nubsey, and have just got a gas gas 125 txt 2000 for the grandson. Spares or repair. Well as we do not already own one it must be repair. Have had a few issues but we are getting there. Also the grandson is hopefully learning something about bikes etc. My trouble is that everything I done was years ago, so no spark was check the points or replace them. Not so anymore. So we are both learning. Still it's nice to see him walking about with a grin glued to his face like a Cheshire Cat. All the best to all Nubsey

Have just put a miltimeter across the coil in the bike. On the primary circuit it shows a short. To test this I removed the wire where the voltage comes in, and measured from the terminal and earth. The secondary coil looks duff as well, there was a reading of ten ohms on my meter. So I think a new coil will be called for. Will let you know what happens next.

Any chance of going to your local blacksmith and getting it welded

Thanks for the replys chaps, will be checking them out when I get the chance. I suspect that all is ok with it and it is a coil or grounding issue as there is quite a lot of ommph getting to the plug as you get quite a belt from it, Just not enough to give a spark I guess. All the best to all Nubsey

Hi Chaps, As I stated earlier we have just got hold of a gas gas 125 txt 2000. Does anyone know where they have hid the CDI unit. Have found the coil ok, but the cdi unit is well hidden. All help appreciated. Nubsey

Thanks b40rt, yes a very good idea, but one thing at a time, lets get a spark, or no matter how clean the carb is it still won't go. Have put the oil and water in it. So perhaps a few trys at bump starting next weekend. Anyway have cut 1/2 " of the ignition lead and it is copper wire. Also will get a new sparkplug cap, as the old one is U.S. There is no major hurry. Will also take the coil pack out and give it all a good clean etc.

Oni nou thanks for your concern. These incidents were not done on purpose. Sometimes stuff happens.Anyway as someone once said. Volts jolts, Mills kills

Hi Lineaway thanks for the reply. Bought the bike as a spares or repair. The young lad who owned it said it bugged out. I had to ask what that meant. It dies when revved. So he was changing a seal in the clutch case. Anyway bought the bike as my Grandson is becoming a petrol head, just like his grandpapa was at his age. This is something we can both work on. I have never seen him so excited. He looked like he had a permanent grin glued to his face. So today we put in a brand new clutch and reassembled the bike. So yes it is all put back together. Also we put in a brand new sparkplug, althought the old one worked in my lawn mower. The bike has been sitting in a garage for the last couple of years so who knows what has happened to it. As I said points and coils etc no problem but cdi etc, is something I now have to learn. Can you tell me do they have carbon sparkplug leads, as their screw in ngk fitting that goes on the sparkplug lead to fit on the spark plug. but I cannot see any copper wire, and I don't want to cut it back to see if there is any. Will look at all the earthing points that I can find and clean them etc. Any other help wil be most welcome. Nubsey

Hey 2stroke 4 stroke, Great! I did not know they also repaired motorbikes

Have just acquired a gas gas 125 txt 2000. Had to rebuild the clutch and put back the kick start etc. Have yet to put oil and water in it. Checked for a spark as I would like to start it for a few seconds, just to check that the kickstart is fitted ok. I.E. no ratcheting when the engine is running. Anyway there is no spark that I could see. Have replaced the spark plug and checked the kill switch. There is voltage getting to the plug, as when kicked over and holding the spark plug you get quite a belt from it. My grandson said he felt it go all the way up his arm. Anyone any ideas as sometimes these things are quite simple. The trouble is I am an old points type man. Also I think it might have a carbon lead. I hate these but are they fitted with carbon leads, All the best Nubsey