Disappointing!

Sounds like your battery is junk.

Just sent you a PM a short while ago about your battery probs, but you pretty much got it sussed.
I've a couple of spare batteries you could try, before you go spending any more £££ on a new one; not sure how "healthy" they are though! Also got a multimeter if wanna borrow that too!

Im having exactly this prblem with my race bike mate, recon its also the battery, Im getting anew one so if it is then il let u know

Spike16 wrote:Im having exactly this prblem with my race bike mate, recon its also the battery, Im getting anew one so if it is then il let u know

Hey Spike, please do let me know - I've not ordered a new one but have thought about it.

I'm going to borrow Speedy's multimeter and do some checking and go around all the connectors on the weekend - although I did squirt WD40 into connectors and ensured they were good when I re-fitted the loom but I could've missed something and I know NC's are not great when it comes to the electrics.

Right guys as the title says IT LIVES BUT.....

1) I've had the battery on charge for the whole week
2) I recall there being a loose connection at the reg-rec

I took off the block connector and low and behold found that there was a male spade connector shoved in there making a bridged connection to the original female part of the spade. I clipped off all the connectors and put on new ones, checked all the other connections - which were good. I flicked on the ignition all the idiot lights were working "check" (neutral light on), main beam good "check", indicators working "check" - suprised that even the passing switch worked!

Right so I had my fingers crossed and hit the starter button - it didn't kill the battery like last time and I heard the starter trying to turn and there was some coughing and spluttering but it didn't start. I let go of the start siwtch and attempted about 7 more times and then it came to life and boy did the sound scare the daylights out of me!

Anyway, I then had some scary moments 1) it was revving way too high 7k (ok dumba$$ so turn the choke off) after doing that 5k (ok so wind out the idle adjuster) no effect - so it's sitting there revving at 5k (and it's bloody loud). Whilst doing all this didn't notice that a) the rear wheel was turning and b) there is smoke coming from around the engine- when I did notice I panicked and flicked off the igintion.

After a few minutes of looking around checking stuff and taking off the sprocket cover I started it again (I actually forgot to put the choke on). Anyway it started and I had the same problem the rear wheel was turning and it was now revving at 7k but after about 2 mins the rear wheel stopped turning and then the bike cut out??

I then started it again (no choke), now revving at 5k and the rear wheel was no longer spinning? I revved the bike past 7k - no problem, 10k no problem - switched it off - started it again same result.

So, what is the diagnosis? I've noticed that the bike starts every time on the button with no choke but the revs are way too high - my first guess is I've messed up the carb sync? Also (it could be my ears) but it doesn't sound that smooth I sense a tapping/rattle type noise not the sewing machine sound - will post up a video on youtube later got to take my little lad swimming now.

Spinning the rear wheel is just clutch drag. no worries. smoky motor will likely be the gunk accumulated on the engine during it's lay up.

high idle - air leak? choke stuck open?

CMSMJ1 wrote:Spinning the rear wheel is just clutch drag. no worries. smoky motor will likely be the gunk accumulated on the engine during it's lay up. high idle - air leak? choke stuck open?

Thanks for the swift response mate I will go out and have a snoop around and will post and update with pic's hopefully.

Ok I've had a snoop around and it's definitely not the choke being stuck on - the bike comes on everytime without the need for the choke and idles at a whopping 7k and when I do put it on it revs to 8.5k (all in all not good). I reckon it must be an air leak or carb sync problem of some kind which is a pain in the a$$ 'cos will need a least a days work to whip off the tank, air box and carbs and poke around

On the plus side a) I don't need a new battery and b) I know what the tapping noise is it seems the radiator fan is clipping the frame on the way around so will have to drain the system and get it off to fix but will be glad when that noise is gone 'cos it ruins the sweet sowing machine sound.

Ah, one other thing I have a fan hooked up to my reg-rec and I've wired it to the power/earth from the reg-rec which I thought was switched with the ignition but it seems not to be the case - looking at the wiring diagram I am sure it is so what am I missing guys?

OK guys & gals lots of hits but no tips?!?!

Spent practically the whole day faffing around with the bike today with no real results. I took off the tank, airbox and carbs and found this:



Do you think this could be the cause of the revving problems? Don't worry the missing bits weren't in the engine - basically when I took the carbs off this one came off with it's carb rubber, I noticed that it was slightly fractured and when attempting to remove the rubber it came away. If I put the rubber back on it gets covered over quite well - but is that good enough?

I've got lots of carb spares but ironically the matching carbs I have are both screwed one has a broken part which means the choke won't work the other is in such bad shape that it doesn't even warrent my attention. Anyway, if someone could tell me if this is the problem - I'll be after that carb spare its the one over which the petrol pipes run (it has to be that specific one).

Thats gonna be letting air in by the looks of it

Can't you make up a set of decent carbs with what you have knocking around?