Stu Posted December 7, 2013 Share Posted December 7, 2013 not too sure on the other stuff as I dont know the bikes but the bottom pic looks like the connection that comes with a scottoiler Quote Link to comment Share on other sites More sharing options...
Guest Posted December 7, 2013 Share Posted December 7, 2013 not too sure on the other stuff as I dont know the bikes but the bottom pic looks like the connection that comes with a scottoiler that would make sense as the other (severed) end was cable tied to the rear subframe. cheers. Quote Link to comment Share on other sites More sharing options...
eastanglianbiker Posted December 8, 2013 Share Posted December 8, 2013 that would also result in bike running rough/lean as it would be pulling unwanted air in the pipe Quote Link to comment Share on other sites More sharing options...
Mr Fro Posted December 8, 2013 Share Posted December 8, 2013 Nice one getting rid of the emissions rubbish - I like the blanking plates you used! The pipe from pic 1 should locate in one of the holes on the right hand side of the air box.The vacuum lines are correct, the blank bolt is the "master carb" so doesn't have a take-off. Just use the four nipples you get in your carb balancer and all will be fine!I don't remember having the T-piece in mine so a scottoiler sounds about right.Just as a note, you will need to plug up the spare holes in your air box and then play about with your main jets and floats a bit but it's amazing the difference getting rid of that crap does! Did you take the grille things out of the air box while you were at it?Great work buddy! Quote Link to comment Share on other sites More sharing options...
Guest Posted December 9, 2013 Share Posted December 9, 2013 Cheers fro. That pipe in you thinks should go to the airport is a mystery because there was already a breather from the air box connected along with the larger hose. I've got some plugs on order to fill the gap at the front of the airbox which I will silicone in. Quote Link to comment Share on other sites More sharing options...
Mr Fro Posted December 9, 2013 Share Posted December 9, 2013 Just been and checked mine... There are two hoses connected, the one from pic 1 goes to the right hand side of the air box and a second one (oil breather) coming from the crank to the back of the air box.I also got rid of the carb warming system on mine to make getting the carbs in and out a bit easier. Quote Link to comment Share on other sites More sharing options...
Guest Posted December 9, 2013 Share Posted December 9, 2013 Just been and checked mine... There are two hoses connected, the one from pic 1 goes to the right hand side of the air box and a second one (oil breather) coming from the crank to the back of the air box.I also got rid of the carb warming system on mine to make getting the carbs in and out a bit easier. Thanks for checking - to confirm i have 2 hoses coming from the back of the air box -1 narrower hose is a breather and that is still fitted. that come from the bottom left ( as if sitting on the bike) and another wider hose that disapears under the carbs somewhere (im ignorant as to what that one does) and that is form the rear and middle of the air box. I have no other holes in the bottom of the airbox - only the ones towards the front of the bike.The mistery tube in the picture is a 3rd tube that wasn't attached to anything at either end... would a scottoiler have had some form of drainage hose? it has a plug in the end as if to stop oil from escaping. Quote Link to comment Share on other sites More sharing options...
Guest Posted December 9, 2013 Share Posted December 9, 2013 is there meant to be a breather hose form the fuel tank?i only have the 1 hose and that comes from the fuel tap. Quote Link to comment Share on other sites More sharing options...
DreamytimeEscorts Posted December 9, 2013 Share Posted December 9, 2013 I'm brand new here and I'm reading this with interest as I have a 7R that gives the odd small cough when it's cold but oddly smells rich at idle once warmed up.I was thinking about getting it put on a dyno but I'm happy to put that off while I'm reading all about the saga of Legatron and his bike Hello, BTW. Quote Link to comment Share on other sites More sharing options...
Mr Fro Posted December 9, 2013 Share Posted December 9, 2013 is there meant to be a breather hose form the fuel tank?I only have the 1 hose and that comes from the fuel tap. There should be two feeds from the tank to the tap - main and reserve. There should also be a breather at the back left hand side of the tank just above the seam that dangles down beneath the swing arm.Having siad that though, yours is a couple of years younger than mine and your pics only show the right hand side of the bike so I don't know if you've got the tap integral in the tank! Quote Link to comment Share on other sites More sharing options...
Guest Posted December 9, 2013 Share Posted December 9, 2013 (edited) Well the tap sits underneath the tank.. Front left as you sit in it. This is the area the mysterious hose was in.... However the tap only appears to have one outlet. I'll take a closer look tonight. Cheers again buddy. Edited December 9, 2013 by Anonymous Quote Link to comment Share on other sites More sharing options...
Mr Fro Posted December 9, 2013 Share Posted December 9, 2013 A small and very dim light just flickered far away in a corner of my brain... You've not got a vacuum operated tap on that have you? I had one on my GPZ900 but I thought they phased them out in the late 80's because they tended to flow best while you popped in to the newsagents to buy some fags. Quote Link to comment Share on other sites More sharing options...
Guest Posted December 9, 2013 Share Posted December 9, 2013 no mate, i don't think it is vacuum fed. quick bit of googling leads me to that opinion anyway, Quote Link to comment Share on other sites More sharing options...
Guinnless Posted December 30, 2013 Share Posted December 30, 2013 Mines a P7 but mechanically identical to yours.For less than a tenner per carb you can get a service kit that include new needle valves and seats plus all 'O' ring and seals. Two of my carbs were flooding badly - there was nothing obviously wrong with the existing components but the new parts fixed the issue.I also found that the main jets had been mixed up plus one of the Main needles had a chipped tip. A local carb specialist supplier had a brand new needle in stock for about 8 quid. Check that none of the diaphragms for the sliders are split. When putting the carb tops back on make sure the white plastic cap that the long spring goes over is not blocking the vent hole. You can rotate the white cap until the vent hole towards the top of the carbs is completely clear.Check the float heights carefully, Double or even treble check to make sure they are correct. I check both sides of the float and take the average as the plastic floats can distort a little.Carb cleaner blasted through all the small orifices will make sure they are clear. Don't forget to clean the tiny mesh filter in the base of each needle valve housing.Check the condition of all vacuum hoses.Don't rush it. Once complete you will be in a position where you know that the carbs are fine. If it's still not right then it must be something else.Once thing to check on refitting the carbs is make sure that you don't have the return cable too tight as it can cause binding on full right-lock but it only does this when you have fastened down the airbox base so check before you continue to re-assemble.I also did the valve clearances on mine which much improved low speed running and hot starting. If you like I have a spreadsheet that I created to do all the calculations.Basically you input the clearances and your existing shims. It then works out what shim value you need for each valve, how many you'll need to buy, how many you can reuse and how many you should have left of each value at the end.Best of luck. Quote Link to comment Share on other sites More sharing options...
Guest Posted December 30, 2013 Share Posted December 30, 2013 Thanks for the reply Steve. im still yet to take the carbs off. but having removed all the "kleen air" gubbins just before xmas, and blanked off the 3 vacuum points on the carb the bike is thankfully running but its definitely got a miss fire. i've checked the air box was blanked correctly so im hoping its just the carbs need a service and syncing up. the area underneath the carbs is filthy with a thick oily, dirty residue. no idea if they all get that dirty but its certainly not been cared for in the 17years of its life as well as i would have done.it also looks like i'm now getting light smoke coming from the right hand side of the engine (crank case side) which is scaring the shit out of me....needs further investigation.im going to be taking her to local bike mechanic (Badger Motorcycles in Ipswich) who deals in streetfighter conversion, smainly of 90's jap sportsbikes so i'm hoping the zx7r will be fairly familiar. i want him give the bike a once over. if its shagged id rather pay a few quid up front to find out than keep chasing the fix and turn the old girl into a money pit. Quote Link to comment Share on other sites More sharing options...
Guinnless Posted December 31, 2013 Share Posted December 31, 2013 If the engine is oily then the cam cover could be leaking if somebody has had it off before and not renewed the gasket.I think you have the right plan to get it assessed properly by a competent outfit. They'll probably do a compression test and make sure that all the basics are OK.Check the light smoke from the righthand side is not the header tank pipe leaking. Mine rubbed through on the frame resulting in a trip home with the AA. Quote Link to comment Share on other sites More sharing options...
Mr Fro Posted December 31, 2013 Share Posted December 31, 2013 Dude!The oily shit could well be coming from the crank case breather which comes from the sort of area you're talking about. Check it's still there with the non-return valve and that it's plumbed in to the back of the air cleaner box. Quote Link to comment Share on other sites More sharing options...
Guest Posted January 2, 2014 Share Posted January 2, 2014 I picked up a Clymer manual for the Ninja from ebay for not a lot of money and it was local. its pretty good and has already cleared up something..remember this? 1) I'm fairly happy with the handywork (above) but in stripping out the hoses i've got some questions. I found a breather hose of some description that wasn't attached to anything and had a plug on the end. it was completely blocked with what looked like old oil. could this be a fuel tank breather or something? its a clear plastic hose - another picture below. turns out it was a breather from the airbox but i never noticed because the wrong hose appears to have been attached to the airbox outlet all along. The Crank Case breather doesn't vent directly to the air, it goes into the airbox again (putting warm air and cra pinto the airbox) and then out via the hose above. No wonder the airbox full of oily residue when i opened it up for the first time...what a weird design! does this make sense to anyone?can i not just vent to atmosphere and use one of those little crankcase filters like this ? http://www.lotusespritworld.com/images/maintenance/CatchTank/BreatherFilter/CrankcaseBreather_00.jpgI guess the current rough running might point to an issue with a the airbox not being airtight. i tried to plug up the gaps after removing the "clean Air" pipes and valves etc.. but i may have missed something. Quote Link to comment Share on other sites More sharing options...
Mr Fro Posted January 2, 2014 Share Posted January 2, 2014 Cough, cough, (called it), cough, cough. You shouldn't be getting oil residue in the airbox if everything is okey dokey. Best check all the connections and that the in-line valve rattles when you give it a little shake.It might be the case that someone over filled the oil at one point and you've got historic gunk in there.Quite a few people put those vents on the oil breather but it will sit right in front of the rear wheel unless you route it to the side or something. I personally wouldn't like oil vapour over my tyre... Quote Link to comment Share on other sites More sharing options...
Guest Posted January 2, 2014 Share Posted January 2, 2014 lol no one likes a big 'ed i'm now a little concerned as to what the pipe was that plugged into the airbox vent.. and now all the gumff is removed and sitting in a bucket i probably wont know.. oh well, at least ive got the opportunity to sort it now.i'm still gonna get to the mechanic for a once over.. no harm in that. besides he will have more room and more skill than me lol Quote Link to comment Share on other sites More sharing options...
Mr Fro Posted January 2, 2014 Share Posted January 2, 2014 I've got to take my chances when I get them bud! Good luck with sorting it. It would be good to catch up at a ride out or whatnot when it's a bit warmer. Quote Link to comment Share on other sites More sharing options...
Guest Posted January 2, 2014 Share Posted January 2, 2014 warmer. ....i need to look that one up!yeah, when its running ill be out and about Quote Link to comment Share on other sites More sharing options...
Stu Posted January 2, 2014 Share Posted January 2, 2014 most blowby oil is caused by overfilling so some hamfisted monkey might have just overfilled it before Quote Link to comment Share on other sites More sharing options...
Guinnless Posted January 4, 2014 Share Posted January 4, 2014 It's quite normal to breathe crankcases into the airbox but the airbox shouldn't be full of oil. Some residue at service time is acceptable.As Stu has pointed out it could be because it's been overfilled - possibly because the sight glass for the oil level has been checked with the bike on the sidestand which would make it way too full. Well worth checking with the bike upright. Quote Link to comment Share on other sites More sharing options...
Guest Posted January 12, 2014 Share Posted January 12, 2014 Wheeled her out today in the sunlight so I could have a proper look at it again. Oncee she started, I let her run for a good 5 mins but she stall one anything less than half choke, so have adjusted the idle speed to compensate a little. However, the smoke doesn't cleat and it runs rough. The oil window after a run appears a little bit wrong, that with the smoke is pointing me to head gasket.It's getting picked up in 2 weeks so we'll take it from there. Quote Link to comment Share on other sites More sharing options...
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