|
Author |
Message |
stevo as b4 |
This post is not being displayed .
|
stevo as b4 World Chat Champion
Joined: 17 Jul 2003 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
redeem ouzzer |
This post is not being displayed .
|
redeem ouzzer World Chat Champion
Joined: 06 Oct 2015 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
redeem ouzzer |
This post is not being displayed .
|
redeem ouzzer World Chat Champion
Joined: 06 Oct 2015 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
stevo as b4 |
This post is not being displayed .
|
stevo as b4 World Chat Champion
Joined: 17 Jul 2003 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
redeem ouzzer |
This post is not being displayed .
|
redeem ouzzer World Chat Champion
Joined: 06 Oct 2015 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
redeem ouzzer |
This post is not being displayed .
|
redeem ouzzer World Chat Champion
Joined: 06 Oct 2015 Karma :
|
Posted: 20:34 - 20 Jun 2017 Post subject: |
|
|
Major update - she lives!!!!
I've been burning the midnight oil finishing the wiring loom and trying to fit it all the non standard stuff inside the headlight, nearly done apart from wiring in the halogen conversion and sorting the front indicators (need some longer studs).
Decieded to take a sabbatical from fannying around with wiring to do something more fun. After the epiphany of having a spark I've been itching to run it, and knowing that it was a set of carbs and and a throttle cable away from running I took the plunge. The racing Mikunis do differ in a few ways compared to the OEM type apart from the fact they are all left hand. The fuel inlets are bigger (8mm), the cable adjusters are different (stole the ones off the old carbs) and there is a diffuser of some sort under the main jet rather than the usual flat washer. Anyway - rigged up an auxilary tank with a litre of 30:1, said a few prayers and went for it. Ran third kick.
https://youtu.be/SY4qEX3YaN8
Lots of setup work to do, was very lean at bottom end and only behaved when i wound the air screws right in, and response is there but not ultra crisp. Need to sort baseline timing and a basic curve then think about some dyno time. ____________________ Be a REAL MAN! |
|
Back to top |
|
You must be logged in to rate posts |
|
|
pompousporcup... |
This post is not being displayed .
|
pompousporcup... World Chat Champion
Joined: 15 Apr 2015 Karma :
|
Posted: 16:08 - 21 Jun 2017 Post subject: |
|
|
cool sounds good to me*
i know eff all about 2ts |
|
Back to top |
|
You must be logged in to rate posts |
|
|
stevo as b4 |
This post is not being displayed .
|
stevo as b4 World Chat Champion
Joined: 17 Jul 2003 Karma :
|
Posted: 18:29 - 21 Jun 2017 Post subject: |
|
|
Excellent news!
Glad the wiring wasn't too much of a world of pain either.
I noticed that my 30mm Mikuni carb replacement also has an 8mm fuel hose connection, not the 6mm of the VM series original carb. This was only after thinking I'll just pinch a bit of the new fuel hose I ordered with my carb to replace the perished cheap looking hose I have on the stock carb. |
|
Back to top |
|
You must be logged in to rate posts |
|
|
redeem ouzzer |
This post is not being displayed .
|
redeem ouzzer World Chat Champion
Joined: 06 Oct 2015 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
Hahadumball |
This post is not being displayed .
|
Hahadumball World Chat Champion
Joined: 07 Oct 2015 Karma :
|
Posted: 09:38 - 21 Jul 2017 Post subject: |
|
|
noo
i was enjoying this thread ____________________ Fin: no matter how much I look at It I can't understand what was going through my head, all I remember is going about 80 and redlining it to stop it seizing.
360 Deg... Five 1/4 turns. :- Teflon-Mike 18 Jan 2015 |
|
Back to top |
|
You must be logged in to rate posts |
|
|
Tracer1234 |
This post is not being displayed .
|
Tracer1234 World Chat Champion
Joined: 13 Sep 2014 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
trevor saxe-coburg-gotha |
This post is not being displayed .
|
trevor saxe-coburg-gotha World Chat Champion
Joined: 22 Nov 2012 Karma :
|
Posted: 08:03 - 22 Jul 2017 Post subject: |
|
|
Bit weird - on first page of thread some images still showing, others not. Are some Botophucket and some not?
Bit concerned cos I've got a few up there as well - some are on my BCF profile page, and they're still showing. ____________________ "Life is a sexually transmitted disease and the mortality rate is one hundred percent."
Mobylette Type 50 ---> Raleigh Grifter ---> Neval Minsk 125 |
|
Back to top |
|
You must be logged in to rate posts |
|
|
redeem ouzzer |
This post is not being displayed .
|
redeem ouzzer World Chat Champion
Joined: 06 Oct 2015 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
Hahadumball |
This post is not being displayed .
|
Hahadumball World Chat Champion
Joined: 07 Oct 2015 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
redeem ouzzer |
This post is not being displayed .
|
redeem ouzzer World Chat Champion
Joined: 06 Oct 2015 Karma :
|
Posted: 19:49 - 24 Aug 2017 Post subject: |
|
|
Still alive. Bike is MOT'd and i've done about 130 miles on it.
https://i.imgur.com/NbHw0c7.jpg
https://i.imgur.com/gKS6XGC.jpg
Jetting is miles out but i've got dyno time booked on the 2nd of September which will be more productive then me and a box of jets can ever be.
Not too many teething problems, even rode it to work one day last week.
https://i.imgur.com/OjuA2rI.jpg
Tacho is complete bullshit, i'll have a play getting an RGV one to work over winter, not life or death as I has shift light anyway.
It'll snap lift in second even with the mixture miles out so i'm hoping once set up it's going to be a bit mental. ____________________ Be a REAL MAN! |
|
Back to top |
|
You must be logged in to rate posts |
|
|
Hahadumball |
This post is not being displayed .
|
Hahadumball World Chat Champion
Joined: 07 Oct 2015 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
redeem ouzzer |
This post is not being displayed .
|
redeem ouzzer World Chat Champion
Joined: 06 Oct 2015 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
Hahadumball |
This post is not being displayed .
|
Hahadumball World Chat Champion
Joined: 07 Oct 2015 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
redeem ouzzer |
This post is not being displayed .
|
redeem ouzzer World Chat Champion
Joined: 06 Oct 2015 Karma :
|
Posted: 21:20 - 31 Aug 2017 Post subject: |
|
|
Dyno on Saturday but a few things to report.
I've junked the Y-boot and sponge velocity stack in favour of a pair of sponge pods.
https://i.imgur.com/7mxdGot.jpg
I didn't like the look of the rubber on the Y-boot and on removal my fears were realised, the rubber is blistering and cracking. I'm on the hunt for a useable OEM one but the pods should suffice for now.
However i went for a spin tonight and noticed some strange mechanical scraping sounds, eventually traced to the sidestand touching down. Now to do this on the current set up would take serious roundabout surfing or fast corners on track. Unless of course the sidestand bracket was pulling out of the frame so making the sidestand hang low when retracted.
Fuck
https://i.imgur.com/w3zwj8p.jpg
How, why and wherefore I can't answer, and I've not a clue how to approach repair yet. Taken the stand off for now so as not to put anymore stress on the frame.
Really pissed off in all honesty but now shit gets serious and we start chasing BHP. I'd LIKE 60 bhp but we shall see.... knowing my luck it'll blow up on the dyno or refuse to start. ____________________ Be a REAL MAN! |
|
Back to top |
|
You must be logged in to rate posts |
|
|
stevo as b4 |
This post is not being displayed .
|
stevo as b4 World Chat Champion
Joined: 17 Jul 2003 Karma :
|
Posted: 23:55 - 31 Aug 2017 Post subject: |
|
|
Ouch! That looks nasty to repair. It looks like there must have been some corrosion on the inside of tubing where the powder coating doesn't get to.
Inside the headstock of my KMX frame I've got a bit of surface powdery corrosion, I've sprayed some anti corrosion spray in the area for now. Its one reason why I'm not that made up with powder coating bike frames etc.
Compared to dipping and zinc coating like you would do with a car body, as you know all cavities would be coated and not left bare metal inside. Next time I have a frame or swinging arm powder coated I'll probably inject a load of cavity wax into all the tubes I think.
Anyway good luck with the dyno day, I can share the aprehensive feeling of all the that could go wrong, but it's normal to be over worried I guess.
It'd be cool if you get a chance to video any of the runs, and also be interested to see any fueling plots, and how they tune using air/fuel monitoring, and or if they monitor cylinder head Temps or EGT monitoring. There's so much stuff written about the right and wrong way to tune two strokes, I've read all sorts of conflicting and different theory.
When my time comes, I'll just leave it to my dyno place to sort and this time I want to film a few runs, as I was too nervous to hold a camera still last time. |
|
Back to top |
|
You must be logged in to rate posts |
|
|
redeem ouzzer |
This post is not being displayed .
|
redeem ouzzer World Chat Champion
Joined: 06 Oct 2015 Karma :
|
Posted: 20:10 - 02 Sep 2017 Post subject: |
|
|
Got it on the dyno.
https://i.imgur.com/bwQhkqL.jpg
I didn't get to film any runs as I was busy helping out and watching graphs!
Basically 31 runs gave the following
https://i.imgur.com/8nRHx4B.jpg
From 39 bhp with my baseline setting to 51 bhp via two main jet swops, one pilot jet swop and lots of fiddling with the ignition curve.
The first map we worked on gives about 4 bhp less but more overrev.
I've just been out to road test the old dog and can report it's pretty quick, and in bykelyfe parlance "loves da bak wheel". Now to ride it around and get the hang of it, make sure it's ok then make the call of taking it to Cadwell later this month, or not. ____________________ Be a REAL MAN! |
|
Back to top |
|
You must be logged in to rate posts |
|
|
stevo as b4 |
This post is not being displayed .
|
stevo as b4 World Chat Champion
Joined: 17 Jul 2003 Karma :
|
Posted: 14:42 - 03 Sep 2017 Post subject: |
|
|
Cool update and then some!
You've got to be pretty chuffed with that power and torque from a 350cc air cooled twin!
It also has a very nice curve, with usable power and a nice rounded peak with a bit either side for flexibility.
I bet it feels pretty alive and eager/snappy on the road, as it's a fairly light bike, and putting out some decent torque.
Oh and who'd have thought it, that there's 12bhp to be had in a set up, just goes to show how useful and important dyno work is with a modified bike.
There's no way the average bloke in the street playing with needles and jets and plug chops would have found all that potential IMO. |
|
Back to top |
|
You must be logged in to rate posts |
|
|
redeem ouzzer |
This post is not being displayed .
|
redeem ouzzer World Chat Champion
Joined: 06 Oct 2015 Karma :
|
Posted: 17:28 - 03 Sep 2017 Post subject: |
|
|
stevo as b4 wrote: | Cool update and then some!
You've got to be pretty chuffed with that power and torque from a 350cc air cooled twin!
It also has a very nice curve, with usable power and a nice rounded peak with a bit either side for flexibility.
I bet it feels pretty alive and eager/snappy on the road, as it's a fairly light bike, and putting out some decent torque.
Oh and who'd have thought it, that there's 12bhp to be had in a set up, just goes to show how useful and important dyno work is with a modified bike.
There's no way the average bloke in the street playing with needles and jets and plug chops would have found all that potential IMO. |
This is why I didn't even consider fettling myself. The work to go from 48 to 51 bhp was enormous yet it's worth probably 1.5 seconds a lap.
I have to confess she's a bit scary. I ride a GSXR1100 every day and it's far less daunting than this thing. ____________________ Be a REAL MAN! |
|
Back to top |
|
You must be logged in to rate posts |
|
|
Hahadumball |
This post is not being displayed .
|
Hahadumball World Chat Champion
Joined: 07 Oct 2015 Karma :
|
Posted: 13:50 - 05 Sep 2017 Post subject: |
|
|
thats some pretty nice gains there!
looking forward to trackday action, any idea what youre gonna do with the sidestand? should just get one of those push bike ones
https://i.ebayimg.com/thumbs/images/m/mdcJZDddbpsyGhYJ_QtFq_w/s-l225.jpg ____________________ Fin: no matter how much I look at It I can't understand what was going through my head, all I remember is going about 80 and redlining it to stop it seizing.
360 Deg... Five 1/4 turns. :- Teflon-Mike 18 Jan 2015 |
|
Back to top |
|
You must be logged in to rate posts |
|
|
redeem ouzzer |
This post is not being displayed .
|
redeem ouzzer World Chat Champion
Joined: 06 Oct 2015 Karma :
|
Posted: 20:49 - 25 Sep 2017 Post subject: |
|
|
Finally got to give her a proper run out at Cadwell. Few teething issues (one throttle slide sticking due to a burr on the slide body and also a bollocking and a missed last session because the marshall took exception to the amount of oil getting sh*t out of the exhaust joints).
But she works. Quick enough in a straight line to stay ahead of standard 400 4t's and without the nasty ground clearance issues that blight riding a standard one fast.
Few jobs to do over winter -
Strip down and get sidestand mount sorted (original broke away from frame cross member for reasons unknown). It's annoying having to find a wall or axle stand every time you stop! I'll mock it up before i strip it as it might be beneficial to move the bracket elsewhere.
Make new arrangements for clocks. Both chinky clocks look the part but are pretty crap. See if I can find an electronic tacho that works. I've tried an RGV one but it reads twice the RPM as i've since found out that RGV's are not wasted spark. Will try a TDR one next. If no joy i'll not bother and stick with just a shift light and a speedo.
While the engine is out for the frame repair i'll pull the top end to make sure all is well and also try and solve the clutch issue, which i think is related to endfloat on the gearbox input shaft.
https://i.imgur.com/72ts0XI.jpg ____________________ Be a REAL MAN! |
|
Back to top |
|
You must be logged in to rate posts |
|
|
Old Thread Alert!
The last post was made 6 years, 239 days ago. Instead of replying here, would creating a new thread be more useful? |
|
|
|