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Old 15-06-2013, 08:57 PM   #286
MiniLandy
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It owes me 50 so far and operates on a switch. I've ordered a twist-knob speed controller for an extra tenner, but that's yet to come

I'll put up some links if anyone's interested in building one. This one works well, but for the extra time it took to make, the t7 design one is really good value for what it costs.
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Old 19-06-2013, 09:11 PM   #287
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Still plugging away at this. Noticed the exhaust was blowing so welded up the pin holes and then cleaned it up with a die grinder.

Before



After



Cut off the remainder of the old tie bar mounts, and welded in a couple of reinforcing triangles.







Gave the rocker cover a coat of matt black, just to tidy up my scrappy looking engine bay.

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Old 19-06-2013, 09:35 PM   #288
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Looking good!
Looking very neat and tidy.
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couldnt be bothered to stretch that far to pull it out.
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Haz obviously don't like custard , my Mrs spits it out to!
I love it
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Old 19-06-2013, 09:47 PM   #289
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Thanks, it's getting there!

Still got a mess of wiring, but i'll be making a new loom from scratch once it's got an MOT. Oh and a more appropriate coolant bottle, too.

A quick note on the bike carbs: I drilled out the main jets to 1.6mm, drilled out the pilot jets, and it was still too lean. After a LOT of reading, I tried blocking up the pilot air jets - apparently part of rejetting kits for the gsxr600 is a set of bungs for this. Running a LOT better now, but too rich. Going to try and dial it a bit leaner on the pilot screws and maybe try some slightly smaller jets.

One thing's certain though, it's QUICK

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Looking good!
Looking very neat and tidy.
Reading this again and looking at my engine bay shot, reckon it must be sarcasm
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Last edited by MiniLandy; 19-06-2013 at 09:50 PM.
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Old 20-06-2013, 05:44 AM   #290
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Lol, it's actually starting to look tidier every time you throw up a pic.
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Haz obviously don't like custard , my Mrs spits it out to!
I love it
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Old 04-07-2013, 09:21 PM   #291
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Right then, had a problem with coolant temps, turned out to be down to the fact I didn't have a bypass hose. It now sits nicely at about 90 degrees, hovering up and down.



Did a few pre MOT checks and discovered I needed a new steering rack, so bought one of those.



Went for the MOT, failed on a track rod end, front numberplate (apparently the regs have been tightened), brakes (master cylinder has failed - leaking into the servo) and emissions.

Ordered the new master, whipped the old one off and cleaned up the servo. Then mounted the old numberplate.



Ran out of parts, so trimmed back an old grill to sit better over the fan and alternator

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Old 04-07-2013, 11:38 PM   #292
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you did good,, whats the crack with the dredid emissons?
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Old 04-07-2013, 11:57 PM   #293
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Carbs need adjusting, currently way too rich. 1.6mm is far too big a main jet size for a 1.4, for anyone reading this Still not sure on the float heights either.

Basically, bike carbs are a massive pain in the ar$e.
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Old 05-07-2013, 12:23 AM   #294
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o,my mighty, god,, ive had a few whiskeys now and feel the ned to put my keybourd worrier fingers on[dont pannic] but this killer driller with bike carbs just dont run right with me!! [excuse me as some of our lernid frends have had luck]
now dose the main jet have a taperd pin inside it thats lifted bt air movement?
[automatic] via the c,f,m of the down stroke of the piston??
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Old 05-07-2013, 08:52 AM   #295
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now dose the main jet have a taperd pin inside it thats lifted bt air movement?
[automatic] via the c,f,m of the down stroke of the piston??
Slightly more complex than that, but sort of. The main jet feeds the carb's inner pipework that leads to the needle jet.
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Old 05-07-2013, 11:54 AM   #296
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ok, firstly the float controls a diode valve it just lets petrol into the bowl and shuts when full,, it should be set as standard and need no fiddleing, it has nothing to do with the mixture, unless the float lever is set so high its not allowing enuff fuel into the bowl ready for the engine to suck and use,
you can[or I used to] blow in the in pipe and manuly shut the float by hand to see where it shuts in relashon to the reseptical, you could check that the float aint got a hole ,,and aint full of petrol[not doing its job][permently open][coz its sunk]
now this is the problem I have with using bike carbs,
this is purely my point[google not used] so before anyone that's never swallowd petrol corrects me[im loosely speeking]
lets take 4 carbs running 600 cc bike, is that 150cc per carb?? to feed?? petrol/air
lets take 4 carbs running 2000 cc car is that 500 cc per carb?? in my mind that's a massive shortfall, seems in FACT it would take all 4 carbs to run 1 of the 2000 cc pistons.
so what happens??? mr killer driller comes along with his drill bit and opens up the petrol jet, well maybe mr killer driller has forgotten about the other part[the air]
the size of the vuntur air hole is just not big enuff, hence the richness,
its almost a perfect balance,
and I don't know how some get away with it?? but they seem to,,
but how
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Old 05-07-2013, 12:50 PM   #297
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Fuck me shaun. That actually made sense.
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seat mounting should not be taken lightly, nor should a rat trying to get up your trouser leg doing 50,m,p,h, all of a suden your nUts become more important,
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Old 05-07-2013, 01:18 PM   #298
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Fuck me shaun. That actually made sense.
I think that's sig worthy... haha
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Old 05-07-2013, 01:35 PM   #299
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lets take 4 carbs running 600 cc bike, is that 150cc per carb?? to feed?? petrol/air
lets take 4 carbs running 2000 cc car is that 500 cc per carb?? in my mind that's a massive shortfall, seems in FACT it would take all 4 carbs to run 1 of the 2000 cc pistons.
Don't people look at the power these 600 cc bikes make and if the donor engine makes similar power the carbs are OK?
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Old 05-07-2013, 01:49 PM   #300
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Originally Posted by apbellamy View Post
Fuck me shaun. That actually made sense.
Quality, sigging that

Shaun, about the float bowls: The float level affects low/midrange rpm power at full throttle. It's also affected by the fact the carbs aren't sat at the same angle in my car as they are on the bike.

As for being able to supply enough air/fuel, you've got to remember that the bike's engine is spinning at anything up to 12krpm, meaning a lot of air and fuel is going through it considering it's a 600cc engine. Also, as ArtStu pointed out, the bike makes 90 odd bhp at the rear wheel whereas the Rover 214 makes about 103 at the fly (80 ish at the wheels?).

These carbs are a LOT more complex than the SUs we're used to on minis, and admittedly this is something I didn't appreciate when I decided to use them. Starting to understand it now though

Anyone reading this trying to set up these carbs, go to www.factorypro.com, click "product support" at the top, then "motorcycle tuning tech", then "CV carb tuning", then "low RPM engines". You should be on a pink page with a really useful guide on how to set them up, from a company that has spent years making jetting kits for tuned GSXRs
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