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Post by muttsnuts on Jun 21, 2020 20:03:45 GMT 1
I know, I am thinking of taking my set of clocks off my 421LC and putting some electronic ones on that I do, then selling the LC clocks as I'll break even give or take !
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Post by muttsnuts on Jun 21, 2020 20:01:32 GMT 1
I had the blue C1 of that model, loved it, as you say, drop that front sprocket 1 tooth and have fun ! - I just build big 2 stroke engines now for the same daft grin factor !
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Post by muttsnuts on Jun 21, 2020 19:59:20 GMT 1
Never thought I'd be Jealous of a 700 miles trip Still stuck with 5 mile radius up here 🤣 Plenty to get going with there Steve um, hasn't stopped a couple of your fellow country men bringing their bikes to me last week for fettling...... maybe they drove under the cover of darkness !! - both from Glasgow no less as well ! Nice haul BTW - would go nicely in my new garage I am having built next week !
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Post by muttsnuts on Jun 21, 2020 15:58:00 GMT 1
Did you find what's wrong with the existing carbs, Dave? nope, but they are buggered for sure, fitted my speare set and the bike runs spot on
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Post by muttsnuts on Jun 21, 2020 15:54:35 GMT 1
the choke slide has the cut outs to allow the air circuit for the choke to work, if you look at the choke carb body you will also see a corresponding hole in the casting which lines up with the cut outs when the slide is fully closed, this allows the extra air required for the choke to work through. if you look at the RHS carb body you will see the casting mark for the hole, but its not been machined
HTH
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Post by muttsnuts on Jun 20, 2020 21:06:55 GMT 1
its fixed, needs some new carbs, for now Rob's running on my test carbs
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Post by muttsnuts on Jun 17, 2020 21:11:22 GMT 1
TBH I'd be happy to lose 20bbhp at the top and have 20bhp more at 4k. That much power increase will make it un-rideable without some sort of electronic intervention. It will either be smacking you in the face and making you shut off or trying to highside you as it spins up and dumps you off in a heap. Make a good drag engine or speed record thing. Like you say, lots of work needed LOL - Phil I was going to bring it to Blyton and get you to rag it around to see how you get on with it !!! - would be interesting on a small circuit
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Post by muttsnuts on Jun 17, 2020 17:19:33 GMT 1
that's a good price, its approx £8 cheaper than I buy them for now
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Post by muttsnuts on Jun 16, 2020 19:02:56 GMT 1
umm, seems like only my response was removed...........
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Post by muttsnuts on Jun 16, 2020 18:43:26 GMT 1
Steve, the mid range pipe works equally as well on the 250's, gives around a 25% uplift in power in mid range, similar curve as you'd expect as well, I'll have to post some charts up, not given much thought until you mentioned it really, might even revisit the pipe and design one specifically for the 250 to see if I can lift it a bit more.....
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Post by muttsnuts on Jun 16, 2020 13:38:55 GMT 1
Then start doing them for 385 ypvs heads 😁 Steve I am nearly there, just need a few more heads so I can do an exchange basis, got one here ready to go if your stuck, bloody things are expensive to buy at the moment, so waiting for prices to drop a bit !
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Post by muttsnuts on Jun 16, 2020 13:12:09 GMT 1
no such thing as stupid question in my book, just one of an enquiring mind
Don't rate Sebring ones TBH, higgs are pretty good, but I don't like the look of them TBH, lots of options out there, comes down to budget, what look you want, any performance characteristics you especially want etc.
There are a few good threads on heer that have discussed exhaust options to death, I am sure somebody will post up a few links etc for you in due course, or try the search function on the forum as that should help you as well
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Post by muttsnuts on Jun 16, 2020 9:41:02 GMT 1
I do them exchange
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Post by muttsnuts on Jun 15, 2020 8:46:52 GMT 1
Rob, I owe you a few pints, so just bring it across and we'll fix it on the dyno, just give me a call and we can arrange, saves any guess work
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Post by muttsnuts on Jun 14, 2020 11:57:57 GMT 1
Thanks guys, I won't go into too much detail as its upto the customer to decide if they want the details divulging (they are on here) The engine is a NON PV engine, 73mm bore cylinders, 10mm stroke (as per Phil mentioned, but is a very different engine to Johnny's), the engine has cost a fortune as everything is not only brand new, but a lot is billet, the crank will rev to 12k if required, the crank bearings have been massively uprated to allow for this The LC frame has been braced, as has the owner !! - his intial response on his first test ride was "It goes well, fooking dangerous TBH !! " - he hasn't let it rip yet as it needs bedding in and we want some steady miles on it while we check everything is working as planned. At the moment its running 35mm carbs, we plan on trying some 38mm's and also the new ignition system which has a flywheel that only weighs 300grams, current flywheel is 650grams (Yamaha one is 1560grams), its running an 8 plate clutch with light springs (more on that another day as I may start making these to sell) We have another 5 sets of exhausts to try on it, each having a different characteristic, the aim is to have 2 specs, one for big power, target is 120+bhp the other is to have huge mid range (think we might have hit that one already, but time will tell !) The intial tests are promising, engine temps are staying very low (54 to 60 deg) and I have a new head design in the pipe line, which should reduce temps by 6 to 8 degs all being well, but again, its time and money, none of this development is cheap and I only have so much time and money to throw at these new parts etc Its also running on oil pump !! Watch this space for more updates, or check out the "Malton Dyno Club" FB page which is where I publish all of the developments and tests etc
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Post by muttsnuts on Jun 13, 2020 21:38:07 GMT 1
Woah! Some serious power there. What capacity is the engine? Alex 535cc's
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Post by muttsnuts on Jun 13, 2020 21:15:08 GMT 1
Been mad busy for last 8+ weeks, but inbetween all of the madness I had a chance the other week to test out one of the new engines that I've been building for a customer, I would have posted up the initial results sooner, but stupid photof**ket shagged it all up, so now using imgur Anyway, initial results look promising, hit 100bhp bit sooner than I expected (8150rpm), not complaining though ! And the 100bhp at 9000rpm has been knocked out of the park....... There is still lots to test and develop, but we are going to get some miles on the LC first (yes its in an LC ), then we will run with bigger carbs and a new ignition system I've been working on, then we have 5 other pipe designs to test and then I might think about doing abit of port work ...... Watch this space........
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Post by muttsnuts on Jun 13, 2020 20:48:05 GMT 1
3 whites just go to the 3 whites on the loom, any order, the blue wire is the neutral light and goes to the same coloured wire in the loom
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Post by muttsnuts on Jun 11, 2020 13:47:52 GMT 1
For those interested, for the last 4 weeks or so there has been a lack of YSS shocks available due to the virus, anyway, I placed a big order with the UK distributor, these are due to land with me early next week, a good few are already allocated to people, the rest will be stock, however, my backorder amounts to the whole stock that has come in, so I suspect there will be anopther delay/shortage while the next lot comes in, my order is not completely fulfilled.
Anyway, I have some LC and YPVS shocks from next week, if anybody neecds one you'll need to be quick as I expect they will go quickly and we will be waiting again, I am not ramping my prices etc up like some do when there is a shortage, they will still be £220 plus postage
Just so its clear, I am not putting this up because I'll have a lot of stock, it will sell when it does, more that I'd sooner help guys on here first than random people contacting me via my website
besides, if I wanted to maximise the amount I can get for them, I'd put them all on ebay !
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Post by muttsnuts on Jun 11, 2020 13:40:12 GMT 1
Also, I have noticed that sometimes, people on here ask in wanted for something and then it turns up advertised on ebay suddenly for high price, now that I don't like, could be coincidence but it smells to me when that happens. there are a few on here who do that (not as many as there use to be), a good few of us know who they are, but to be fair to all, if you sell something at a price your happy with then no real harm, but if you discount stuff for members on here (I try my best to) and then it ends up on ebay, that leaves a bitter taste in your mouth. Those people I know as both customers and friends I will always try my level best to do a deal, even if its just on postage, those that I don't know, I am less inclined to
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Post by muttsnuts on Jun 10, 2020 21:41:39 GMT 1
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Post by muttsnuts on Jun 10, 2020 21:19:21 GMT 1
I've been reading a book recently, its fantastic, its written by Stan Wellback, who was in Iraq, he served as a bomb disposal expert
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Post by muttsnuts on Jun 10, 2020 14:12:50 GMT 1
Muttsnutts and donkeychomp incorporated not your average sounding bike builders 👍 Sounds like a badly named brothel 🙊 In saying that a visit to a brothel is cheaper 🤣 Steve and quicker in your case !!
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Post by muttsnuts on Jun 10, 2020 14:12:22 GMT 1
um, so let me get this right..... Veg helps Donkeychomp Muttsnuts...........
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Post by muttsnuts on Jun 9, 2020 19:39:18 GMT 1
niche - pah, its a bloody onslaught, today I have had 37 phone calls, 14 emails, 6 whatsapps and 4 forum messages, yesterday I had 24 phone calls, 16 emails, 2 whatsapps and 4 messenger messages
I have just started a young lad on yesterday for 2 days a week to help me move jobs along, when I say young lad, he's in his 30's and has worked for lots of BSB race teams (he lives local), so knows his onions (on 4 strokes!), so steep learning curve on 2 strokes, but he has been a big help the last 2 days, I could use him 7 days a week at the moment and I still wouldn't be able to handle the volume of work, unfortunately he can only give me 2 days at the moment, but I'll take that over nothing
Something has to give at this rate.......
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Post by muttsnuts on Jun 8, 2020 8:05:29 GMT 1
The air jet is an internal drilling behind the brass ball. The 250 is drilled bigger than a 350, so would take some modification to get it back smaller. Not impossible, but probably not a 5 minute DIY job. With that changed, you would have 4L0-01 spec bodies converted from 4L1-00 carbs. maybe that is the reason that some tuner chap, forget who now, it was several decades ago.. told me that my 375 would run better with 350 internals transplanted into a set of 250 carbs, so i did, think i had to go up on the pilots.. but it seemed to work ok. these days i'd like to have a couple of dyno runs with different carbs to see what the difference would be marti Marti - that is correct, using the 250 carbs can yield results, but its not a 5 min job to sort, but worth it, as I said way up there ^^^^ I've had some very good results doing it, but it wasn't a 5 min job getting them right, and a lot easier having the dyno to do it on, doing it by guess work isn't a way I'd suggest
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Post by muttsnuts on Jun 8, 2020 8:02:00 GMT 1
yes they do/can fail, its electronic after all
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Post by muttsnuts on Jun 8, 2020 7:58:09 GMT 1
its a fine line between answering calls and doing the work, we need to take the calls, or at least return them, I am just going through my never ending list now, I am actually up to Mid May's calls, but some people think we should respond immediately, without realising how busy we are.
I had somebody call 6 times yesterday in the space of 2hrs, they never left a VM or anything, so it can't have been that important could it, but then, how many bike shops are open on a Sunday, such presumption ! - that's what you have to deal with a lot as well - it can be very annoying
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Post by muttsnuts on Jun 7, 2020 20:43:37 GMT 1
That's not what I said, read my post again. I did, my point is, the carb bodies do vary......hence the different settings and internals
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Post by muttsnuts on Jun 7, 2020 20:41:36 GMT 1
the only thing that cliques for me is my hips when I stand up
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