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Messages - Jonathan Collier

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1
Engine and Transmission / Re: Fuel Tap
« on: May 11, 2017, 09:42:59 pm »
I'm a happy chap again, the NF idles sweetly now after another serious cleaning session.I'm not sure what the fix was in the end apart from super duper clean up paying special attention to the idle circuit, possible partial blockage of the wee small hole down stream of the throttle slide cleared with piece of fine wire maybe.This would fit with Banquo's diagnosis  ;D  Anyway, we had a really nice ride out on the back roads of Pembrokeshire yesterday, 60 odd miles with no issues and my starting technique is better as well, nice easy starts following Banquos method. I'm still getting to grips with the reversed foot controls (reversed for me that is) but really enjoying it and looking forward to some longer day rides into mid Wales now, dual seat to be finished and perhaps some panniers. Much happiness!!  Thanks for all the tips and suggestions.

2
Engine and Transmission / Re: Fuel Tap
« on: May 04, 2017, 10:22:38 pm »
Have a look at this video
https://www.youtube.com/watch?v=r5Uw5JoUD-Y

As soon as I tweek the idle speed down very very slightly it tails of, looks like over fueling, driving me mad now!

3
Engine and Transmission / Re: Fuel Tap
« on: May 03, 2017, 10:45:59 am »
Starting well, but seems to be rich at idle with closed throttle, when the slide is lifted with the adjustment screw at all it idles really high and I cant get a decent balance between choking up/stalling and high idle - incredibly sensitive to this setting. Carb body is back at the utrasonic bath and I've ordered a new needle as there was some weird erosion on it which might not have been helping, fingers crossed. The weather is great and I'm between shifts so its murder not being able to ride it.

4
Engine and Transmission / Re: Fuel Tap
« on: May 03, 2017, 10:04:11 am »
No sadly I didnt make it down, my NF is still poorly.

5
Engine and Transmission / Re: Fuel Tap
« on: April 23, 2017, 10:09:57 pm »
Ive cut two new washers from the 1.5mm viton sheet, now working a treat, thanks for the info.

6
Engine and Transmission / Re: Carb set up? very poor running
« on: April 23, 2017, 08:45:10 pm »
My NF is back together now sans belt. Started second kick after using 'the method' much better. Some searching of the site turned up the belt spec:

this is it https://www.vbeltguys.com/products/1138-ventiflex-manufacturing-oem-equivalent-cogged-automotive-v-belt

My belt measured 670mm on the outer circumference which matches the spec. in the link. Weird that it wont fit oveer the flyweehl, I checked again today after suoergluing it back together to try again. I'm tempted to buy a slightly longer one but I think it would need to be about 20mm longer to get over the wheel.

7
Engine and Transmission / Re: Carb set up? very poor running
« on: April 18, 2017, 04:06:41 pm »
Hmm the plot thickens, the belt fitted at the moment won't go over the flywheel (270mm diameter) so more investigation needed there. I thought at the time that it was a silly design, I think I'll snip off the existing one and take it to my local supplier to try and get a match at a slightly longer length, once again thanks for the very pertinent info!

8
Engine and Transmission / Re: Carb set up? very poor running
« on: April 18, 2017, 08:09:40 am »
Thanks Banquo, very helpful indeed I certainly wasn't following 'the method' for starting, as you may have gathered I'm a novice when it comes to kick starts and points ignition! I've had lots and lots of modern bikes over the years and several KS two stroke trials bikes, the last time I set points was on a 2CV about 25 years ago  ::)
I'll be pulling the flywheel soon to change the V belt which Ive just noticed is ****, so KS spring to be ordered as well and fitted as well.
It is quite nice to be getting stuck into these maintenance things and learning about the bike, it'll give me confidence to really use the bike and to know what tools to bring. I'm really looking forward to chugging around Wales on it this summer.
Advance weights are free, I reset the points gap and timing last night. One thing to mention, as I rolled the engine over by hand to the 10 deg mark and checked for co-incidence of points opening with a multi-meter, there was some sparking, is this a symptom of bad condenser as well? Points weren't burnt or pitted though.

9
Engine and Transmission / Re: Preparing for a Long Trip
« on: April 17, 2017, 02:39:04 pm »
Old thread resurrection! St Davids in Pembs? Im in Haverfordwest, I used to live in Ty Ddewi , PM if your passing again!

Quote from: cloggy on September 03, 2016, 06:56:01 pm
  ....
 Subsequently I popped down to St Davids and then came back in part on dual carriageway. I was wandering along and wondered what the top speed was only to realise I'd been travelling at 70 for at least an hour. It was smooth at that speed. Now I know that it's economical cruising speed is lower   but this is a motor that can relatively easily be made to produce a lot more power at higher revs without resorting to beefing up the bottom end or gearbox. Standard at 70 it's piston speed is will be  low as it is very high geared. I very much doubt one would do any harm to the motor but it's going to use fuel at a higher rate so you may not get there any faster. All I noticed was oil mist from the pitifully flimsy oil  feed line to the head: and for the last 30 miles cramp in my left leg...I did something like 500k that day.

10
Engine and Transmission / Re: Carb set up? very poor running
« on: April 17, 2017, 02:32:23 pm »
Thanks for the replies gents, I'm going down the route you have suggested and think the same way now. I had some time yesterday on it and initial investigation looks like static timing is out a little, I did have a couple of vicious kickbacks which has also buggered the KS return spring (joy), points don't look burnt but whilst everything is in bits I think I'll go for renewal of points and condensor, many of the items fitted look to be original parts not sure about the coil but I did try a mini one which I happen to have in the shed but it didn't make any real difference. If its a clue, the running seems to get progressively worse over time, I'm thinking condensor issues or perhaps both coils that ive tried are duff and get poorly as they get hot. New coil on order, hunting for points and condensor now. It'll be lovely when it is running  ;D

11
Engine and Transmission / Re: Fuel Tap
« on: April 15, 2017, 04:31:57 pm »
Can you remember off hand how thick the viton sheet needs to be? 2mm?

12
Engine and Transmission / Carb set up? very poor running
« on: April 15, 2017, 04:29:38 pm »
Hi there, new to me falcone is really testing me and my patience. I'm finding it to be very difficult to start and it has a very poor and erratic idle, plenty of coughs and farts when running especially at low throttle openings but confusingly also at heavier throttle but not consistent. The idle adjustment is extremely sensitive, either idling too high or engine dying off to stall without a tweek of the throttle to keep it running, rpm also takes awhile to settle again after the throttle tweek. Its driving me mad, I've tried the idle fuel adjustment at alsorts of positions but no joy at getting a decent idle. Carb has been cleaned multiple times now, jets cleaned and clear. FAter spending most of the day trying to get this right I'm at my wits end, any ideas fellow Falcone-ists?

13
Newbies say hello / Re: 1970 NF ridden today
« on: September 12, 2016, 10:19:09 pm »
Oh and I'm in Pembrokeshire west Wales.

14
Newbies say hello / 1970 NF ridden today
« on: September 12, 2016, 10:18:12 pm »
Just bought one, just about made it to the mot station without crashing, amazingly it passed! Went for a chug afterwards to try a learn the brake on left gear on right thing  :o
Lots of fettling to do, a bit of a service and some new cables, looking for brake, clutch and speedo???

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