Lunchbox and Jetting, Quick questions!

[Jayke]

Just wondering too,  there are three lines that come off the tank,  where does the thin one go? Assumed it doesn't go anywhere and is just to pull air,  anyone know?

There's also no hose on the top of the carb, in the middle of the two carbs.

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[BockinBboy]

The thin one is the tank vent.  It goes down to the right hand side of the bike near the rear brake at the bottom of the frame.  If you have a faired model, it hides just behind the bottom edge of the side fairings.

- Bboy

[Jayke]

Ah sweet thank you! Have had it just draped near the air filter since I did it the first time. As for this one, what actually attaches here? It's a 2001 model.

Had a look on Google and there's only one place,  and that seems to be pre 2001

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[BockinBboy]

There is two 'T's on the carbs, that look very similar to each other.  I think that is the top one which is the carb vent tube (the lower 'T' would be for your fuel line into carb).  For lunch box, I'm not exactly sure what is the best routing - but it is very important for the tube that connects there to terminate out of any wind, and no kinks (otherwise fuel starvation problems).  With the stock airbox, the routing of that tube goes over the airbox and tucks in between the other side of the airbox and the battery.  I would think if it were routed behind the battery box, that it should be fine there, but I don't know if it will reach without kinks using the stock length tube - may need a longer one or extend it if its too tight and kinks somewhere - but I'd think that's probably the best location using a lunchbox.

- Bboy

[Jayke]

Alright great thanks.

Just tried the 17.5pilots again which were the original ones in the bike,  and it doesn't stutter or anything,  no hesitation at all which feels great; just one problem.  The revs are going down slower than when I had the 20 pilots in,  say,  if I rev it to 4k, it'll drop to 2.5k then from there to idle it takes longer than usual. Could that be the jets need cleaning out? I blew through them and looked thru them and they looked fine so not quite sure.

With your gs,  does it rev fast after 8k? Or does it feel like mine,  any gear other than first,  it feels at 8k rpm it hits a wall and doesn't wanna go far past it. It will,  just will take forever.

Running 17.5/65/147.5 3turns

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[radodrill]

I finally settled on 22.5/62.5/142.5 she's running really strong now;  just fine tuning the idle.  It pulls hard up to redline; only slightly jerky coming from closed to slight throttle.

When I had 150+ mains it felt like it was hitting a wall near 9K rpm.

[BockinBboy]

Yeah mine still revs to redline - would prolly keep goin up if I let it lol.  I'm jetted with 20 pilots, and 132.5 mains, stock mids, one washer - I have stock airbox/filter, and a 'no-resistance'/very free-flowing exhaust

- Bboy

Edit:  Transition feel maybe a little lean, but I don't think enough to raise the mid... thought of tryin another washer, but being start of season, I'd rather ride than fiddle

[Blueman]

I'm assuming you mean 147.5 radodrill, not 142.5

I'm curious to know how your spark plugs look. Are they brown or a little black? Right now I'm on 20/62.5/145 and I want to try 147.5 main. With my current setup, my plugs are mostly white with a very little bit of brown. But how do I know if I should step up to 22.5 pilots?I'm at 3 turns out and I'm idling at about 1400 rpms. The idle comes down steady until about 2k rpms then it comes down a little slower.

[radodrill]

I'm assuming you mean 147.5 radodrill, not 142.5

I'm curious to know how your spark plugs look. Are they brown or a little black? Right now I'm on 20/62.5/145 and I want to try 147.5 main. With my current setup, my plugs are mostly white with a very little bit of brown. But how do I know if I should step up to 22.5 pilots?I'm at 3 turns out and I'm idling at about 1400 rpms. The idle comes down steady until about 2k rpms then it comes down a little slower.

I am indeed running a 142.5 main; it gives way better power/pull than a 147.5 main.

With a stock pipe and K&N drop-in I was running 20/60/142.5 at 2.75 turns out and she was running perfectly; plugs were sort of a tan color.

With an upgraded exhaust I've settled on 22.5/62.5/142.5 currently at 3 turns.  Initially I assumed that the 142.5 would be too lean and stepped up to a 145 while I had the bike apart.  Since it didn't feel like it was pulling too hard I kept upping the main, but at 152.5 it was guzzling a lot of fuel and choking at 9K RPM WOT (and smelled super rich); with the 150 it still smelled slightly rich.  And the 147.5 just didn't have the pull I knew it should.  Popped the 142.5 back it and it pulled hard the way I like it.

With the new pipe I had to step up the mid-main since it was hesitating like crazy.  I put in the 22.5 pilot since it was having some cold start issues at low outdoor temperatures.

[Jayke]

Very interesting, may well have to order 142.5s myself,  cause it's really like hitting a brick wall at 8k like your prob was, will try it out when I get some money and let you guys know!

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[radodrill]

Very interesting, may well have to order 142.5s myself,  cause it's really like hitting a brick wall at 8k like your prob was, will try it out when I get some money and let you guys know!

It'd keep going up to redline, but it was like it suddenly lost it's breath near 9K

[Jayke]

Yeah that's exactly the problem.  I tried it in first gear,  got up to redline but not full speed.  Was just checking to make sure it wasn't anything restricting. Let's hope that's the problem,  then everything will be sweeeet!

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[radodrill]

also if it easily goes to redline at 1/2 throttle and chokes at WOT, then the main is too big.

[Jayke]

Since it's been good Friday and bank holiday Monday, my jets still haven't arrived. On the plus side, for my bike especially, my girlfriend has gone away on holiday, so I have time free to do a lot of work on the old bike....

This is the bike atm, stripping her down and totally giving her a well needed makeover. Bugged me since I bought it kinda, never had the spare time... Got some new renthal ultralows coming, a circle headlight, new tank grip and a bunch of other stuff too, should be great! Did 9 hours solid today on it, you can't see most of it though as it's all in the garage!!

Took this pic though, cause it reminded me of a cafe racer,  would love that look!

Will keep you guys updated if your interested

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[Jayke]

So about 70hours of work later, my bike is finally done, took it out for a ride tonight and lone behold the one thing that we didn't mess with (that the p/o did... Butchered) was the wiring. So was riding about and wires have been snagged and all sorts, since the loom is so ragged, and I mean literally... Every single wire pretty much has been chopped and twisted with just tape covering most of it...

Been looking on eBay to cut the story short.  At buying a loom from someone,  since this is a 2001 model,  would this one be good?

I'm not sure how the wiring would be on the other models hence why I'm asking..

http://pages.ebay.com/link/?nav=item.view&id=181364514526&alt=web

If you can't see it, that's a 2003 loom which I would hope to think would work great in my bike.

Any knowledge shared would be perfect, it'd save me alot more time if I could just buy a loom rather than trying to fix this abomination!

Thanks alot!

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[radodrill]

Unfortunately our resident parts guru (adidasguy) just passed; he would have known all the differences in connectors etc.

That said, the 03+ (04+ in the US) models had a Throttle Position Sensor (TPS) that was not present on the 01/02; so it probably won't work.

[Jayke]

Have just been reading that, how terrible he was such a great,  knowledgeable guy! Never really got to know him but he was always one if the first to give his opinion on things huh.

As for the loom, guess I will try and find a 01/02 one then, just none on eBay as I can see so far!

Will snap a few pics tomorrow of the bike, she's looking good...

And the  142.5 seems to run great, need to have the bike running properly though to test the upper end. But the 10 miles I did do felt fab.

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[Jayke]

http://www.imgur.com/HKmrIZU.jpeg

Check out this wiring disaster, wires changed everywhere... Can't get anything to come on when I turn the key. Assuming it's an ignition fail. Trying my best!

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[radodrill]

That sure is a real clusterF of a wiring hack job.  If the PO simply twisted wires together then wrapped with tape, then it's very likely one or more of those joints has come apart.  I guess the question is weather you want to just buy a replacement harness, make one recycling the connectors, or properly fix all the joints with solder.

[Jayke]

Well we spent a few hours today sorting out what we could. Managed to get everything working great after a bit of trail and error.

Here's the bike btw, after a few changes

http://www.imgur.com/og4bxUg.jpeg

http://www.imgur.com/2FBxvAP.jpeg

And with the new jet, the 142.5 down from the 147.5, accidentally jumped the clutch earlier and felt the front wheel come off the floor an inch or two, must be good, acceleration feels superb!  Just need to get that pilot sorted out now, 17.5 seems perfect, just revs hang a tad/go down slower than they do with the other pilots in .  Tried cleaning them out, still the same. Gonna try a few more turns on the air mixture screw tomorrow.

After all the trouble with the bike, it's safe to say now I literally know this bike inside out. I've learned so much from tinkering hours on end!!

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