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• #18077
Hmmmmm…
Don’t worry, the Advrider squad have some much harsher critics in their ranks than any gathering crowd.
I could increase the oil again, but at the current ratio I get almost no smoke and certainly no spooge. It’s premixed by the way.
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• #18078
I turned the fuel/air screw out 1/8 turn, and moved the incredibly rich main jet clip up one notch.
I think the solution is through that screw. You can also try, if you find a way, to give more air from the intake, maybe just temporarily only to test it.
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• #18079
Tiger fails MOT, SV won't start, CBR in pieces.
Why even bother.
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• #18080
NACC machines are closer to being the log than anything else - certainly won't do speed or wheelies, mostly blue smoke and a lot of 'I had one like that but it was different'.
A bit dated in places, but it might be interesting to read the Two Stroke Tuners Handbook by Gordon Jennings - Google should find you a free online copy - apologies if you've seen it before.
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• #18081
That show keeps getting better.
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• #18082
Basically you are saying increase the amount of air right :)
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• #18083
Now you’re just turning the screw!
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• #18084
The plug does look a bit wet. You'll get there with the tuning, I know I'm not going to have a better idea than you what's going on with it. I've never had a 2 stroke with plugs like that though. Plenty of black sticky stuff in the exhaust ports and exhaust but plugs looking a bit browner and drier. Hard to tell if it's a lot of low revs and low speed stuff whether that would make a big difference.
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• #18085
That's some shit sorry bud
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• #18086
The renovation is a Moto Martin which pricked me ears up!!
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• #18087
Well, so far everything about trials is different to regular bikes. It seems like there is some magic going on inside, small demons and trolls and such like.
I am tempted to run the bike for an hour with the air screw turned out some more, to at least 3/4 out instead of the 5/8 it is currently (or maybe it’s closer to 11/16). So long as it’s no more than a full turn, I’m not looking at a different jet.
Not sure a chocolate brown is even possible with the setup, but I also believe the jets in the carb aren’t standard. I think that they are a size larger than spec, which could be contributing to the soot.
At least today the plug’s electrode was dry and black, and there was much less wet area on the periphery. Last week it was, well, you see it on my hand.
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• #18088
Nah, all good. partly my fault to be honest. I've been tinkering a lot recently and I've realised I've partly lost motivation to ride.
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• #18089
Yes, lots of parts in the purchase were not Moto Martin so they are going to be sourcing a lot of bits.
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• #18090
There's a motorcycle youtube channel called Daily Rider that I've watched a few of, reminds me of the review style on the motorcycle show. They have a laugh and love bikes.
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• #18091
Saw this on eBay and it's right up my street.
I can't stop watching it.
And this at the end?
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• #18092
Great isn't it. If it had a number plate I'd be half tempted.
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• #18093
It's a queen! Well, actually to have it only for the track would be even better.
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• #18094
Cant blame you!
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• #18095
Thanks for the link, the vids are good - and informative too.
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• #18096
The taliban may be a bunch of cunts...but they've got a solid aesthetic
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• #18097
Front tyre is suddenly untrue after standing stille outside for a couple of months. Annoying.
Weird thing is that the bike stood on the gentre stand yet the tyre runs out sideways about 5 mm.
Will it correct itself with use? -
• #18098
All the rug all the time.
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• #18099
Do you regularly check the run out on your tyres? I would have thought it was within tolerance but how could it change while on the centre stand?
I'll admit I have been bored during the lockdowns but I still never got round to checking the runout on my bike tyres.
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• #18100
Does anyone know at 0:27 what he is adjusting with his left hand?
I think the logic is on the lines of the amount of oxygen available is limited by the swept volume of the cylinder(s), and an excess of fuel leads to incomplete combustion and carbon / unburned fuel in the exhaust part of the cycle with soot deposits around the cylinder head and exhaust. Petrol has a calorific value significantly greater than lubricating oil, so reducing the oil increases the proportion of combustible fuel in each cycle, i.e. increases the proportion of fuel that cannot be burned. Because the oil burns less readily than petrol, the unburned portion tends to be mostly oil, giving an impression of too much oil in the mix.
I can believe this applies to older engines where everything goes through the carburettor and oil levels are much higher (the handbook says 20:1 for my 1952 Trojan!), but it might be different for newer designs where oil delivery is separate from petrol?
In any case, you'll often find complete strangers will claim to know more about your machine than you do, especially if you can't get it going and a crowd gathers...