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Just bought bike started and smokes

Old 05-20-2012, 06:42 PM
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Just bought bike started and smokes

I just bought a 1998 996 super hawk saw it at a garage sale lol but he said that it hadn't ran in over a year but he was trying to fire it up but wouldn't start said the carbs needed cleaned so had him turn it over for me and it sounded fine battery was low so I get it home was hoping a lil starting fluid might get her going took first two screws out lifted tank and it was empty of course got happy put gas in it cranked a lil fired up but smokes pretty bad let it warm up for about a min then took it around the block but still smoked coming out of where the slip on meets too don't know much about bikes first one any help would be great
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Old 05-20-2012, 06:46 PM
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very hard to tell if there is a problem with as little as you have run it after sitting for so long.

Fist off what color is the smoke? and has it stayed the same amount or is it starting to smoke less after it has run for a little while?
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Old 05-20-2012, 06:54 PM
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first thing you need to do is change all fluids,cooling,clutch,front and rear brake,oil and filter.while youre at it,take the carbs out and clean them or get them cleaned.
fully clean the tank out and lines.might need to be replaced,the lines.
put new plugs in it too.
once all this is done,than fill the tank,put 3 1/2 oz of seafoam,let the bike run normal.dont rev it.
it will smoke for a bit,the more it runs with fresh everything,the less it should smoke.
baby it at first.all the seals,gaskets and such havnt been thru any heat cycles,so dont put the bike under to much stress at first.let it get worn in a bit.
once its running ok,than sync carbs,very important.
and here is the manual,i just know you going to ask lol
by the way,welcome to the site.
https://www.superhawkforum.com/forum...-manual-11365/
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Old 05-21-2012, 10:36 AM
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Thanks for the warm welcome probably like most of you I have 50 to many projects going at once I will try to get my profile set up because I already like this forum a lot but story is sold my truck for a 2005 raptor and some money also sold my 03 ttr125 planned on putting money's down on a vehicle but saw this bike had to have it but I'm trying to finish my 98 banshee just put 4mm stroker kit in it and painted frame and other parts but money kinda rapped up in it gotta get it finished so I can sell it and get another truck and put some money in this bike but yeah didn't run put gas in it smoked white greyish smoke a lot hurried up and rode it around bloke hoping itwould clear up but it didn't only ran for 4-5 mins at the most but like I said kinda broke so any free things to narrow down problem would be great never worked on a bike but I do know what I'm doing so u wouldn't have to dummy anything down I will understand what you are talking about not sure if u have ever messed with banshees but sinking carbs is it kinda like that banshee has two and I have a million hours doing that thanks for any help I really appreciate it
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Old 05-21-2012, 11:33 AM
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And... breath!

If it were me I'd pull the carbs and clean them. That'll answer a lot of questions for ya in terms of smoke and if it's had a jet kit installed, air filter condition, etc. Especially if you've pulled carbs before; it's not hard or expensive, just takes a little patience. There are two on this bike as well joined together, front and rear are different so keep the pieces separate. You may want to pull all the PAIR emissions stuff if it hasn't been already while you're in there.

Look at 8541Hawk's carb setup thread to get a better idea of what to look for. Again, for this you're in pretty good shape if you have some mechanical skill and time but little money .

After that it'll be easier to diagnose any smoking issues (if they're still there)

Btw, buying a beater bike at a garage sale having never owned one before and managing to ride it smoking around the block without incident- I gotta send props your way on that one.
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Old 05-21-2012, 05:30 PM
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Bikes not a beater it's flawless well besides smoke so got home put. More gas in it let it run and smells like straight super rich exhaust think it got worse longer it ran while running pulled the choke it reved up so it's not the choke so gas tanks off air filter and air box not a hint of dirt spotless so going deeper putting up some pics
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Old 05-21-2012, 05:38 PM
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Can't figure out how to download pics try when I'm not working on the bike arent the slides supposed to move when I twist the throttle
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Old 05-21-2012, 05:42 PM
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If bike isn't running,the slides don't move.when running with air box open,you will see it move and very loud.
Have you changed oil and plugs atleast.
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Old 05-21-2012, 05:43 PM
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yes they should. They also thend to bounce a little even at idle.

Your best bet would be to pull them and clean them real good if the bike has been sitting for a extended period of time. Also it is good to know if someone has attempted to install a jet kit sometime in the past.

As for the smoking, it could be a seal that has dried up and needed to swell a bit or maybe even an oil ring sticking but then again it all depends on how long it really sat around
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Old 05-21-2012, 05:44 PM
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Originally Posted by saige View Post
If bike isn't running,the slides don't move.when running with air box open,you will see it move and very loud.
Have you changed oil and plugs atleast.
Didn't even think about him trying to twist the throttle with the engine off....lol I guess I am slipping
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Old 05-21-2012, 05:47 PM
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Originally Posted by 8541Hawk View Post
Didn't even think about him trying to twist the throttle with the engine off....lol I guess I am slipping
LOL,I wrote something different,than realized what he wrote,I didn't hit send,was able to save it just in time
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Old 05-21-2012, 06:08 PM
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Lol you guys are pretty awesome no pulling plugs now oil change tomorrow pulling carbs tonight will clean tomorrow. Any don't dos when pulling these
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Old 05-21-2012, 06:29 PM
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There is a clamp with screws on it underneath the carbs,it's the carb boots,make sure to unscrew before attempting to pull them loose.
Make sure everything is disconnected from the carb.
Disconnect the choke cable from frame,but not the carbs.the cable is a bit of a pain to slide thru,but do it carefully,before sliding cable thru the tight spots,pull on carbs,carefully tho,this is tricky,just get loose from boots,but don't lift out,now you can lift the carbs a little and slide the choke cable out.
Be very careful doing this,there is plastic nuts at the end of cable on the carbs,if one or both break,you are stuck until you get new ones.
You will see some hoses and stuff,just disconnect the one from over flow bottle,than it should come out.
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Old 05-21-2012, 06:44 PM
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Originally Posted by saige View Post
Be very careful doing this,there is plastic nuts at the end of cable on the carbs,if one or both break,you are stuck until you get new ones.
+1. And that assembly isn't cheap to replace.

https://www.superhawkforum.com/forum...-set-up-24769/

And I like to disconnect the choke cable nuts from the carbs and leave the assembly in the frame so I don't have to drag it around, but that's a personal preference

Last edited by 7moore7; 05-21-2012 at 06:46 PM.
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Old 05-21-2012, 06:45 PM
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Pulled plugs both exhausts were smoking evenly but the rear plug was completely fouled all black but the front not so much not new but still see white on the electrode
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Old 05-21-2012, 06:49 PM
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Originally Posted by Slicknick4209 View Post
Bikes not a beater it's flawless
Well now you're de-romanticizing it. I withdraw my previously instated props.
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Old 05-21-2012, 06:52 PM
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Yes,those plugs are done,bike will be happy with new ones.should make a difference.
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Old 05-21-2012, 06:52 PM
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The exhaust on this bike is kinda funky... the left doesn't correlate to the rear, right to the front as it appears. So at idle most of the pressure goes through the left (if I remember correctly) exhaust, then as rpm and pressure builds it bleeds into the other side. So it's hard to determine if an individual cylinder is smoking more than the other using them
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Old 05-21-2012, 06:56 PM
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Aww man why you taking my props
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Old 05-21-2012, 06:57 PM
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Not cool man not cool at all lol k going for the plastic nuts
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Old 05-21-2012, 07:31 PM
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Awesome guys carbs are out thanks for everything talk to you guys tomorrow
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Old 05-22-2012, 10:20 AM
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Do I have to use the drp9iex-9 plug or is there something else
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Old 05-22-2012, 10:36 AM
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Ngk plugs,can get from auto part store,either regular or iridium of the Ngk will work
Cheaper at auto part store,either advance auto or discount auto.
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Old 05-22-2012, 10:36 AM
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The number I have is DPR9EVX-9 but they might have changed it again.... with that you might be able to find something else but I would recommend running the OE plug in this bike
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Old 05-22-2012, 10:51 AM
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Thanks guys we'll have to If anyone has those
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Old 05-22-2012, 11:13 AM
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The carb sync is nothing like on the Banshee. On the banshee you hold the thorttle open and watch in the little windwo for the mark on the slide and balance the cable between the two. On this bike there is a linkage that attaches the front to the back and you have a screw that you adjust between the two. You need to hook a vacuume gauge up to both cylinders to meausre the vacuume and adjust accordingly.

The smoke could be from leaky valve guide seals, or a leaky scraper ring, or just oil residue built up from sitting for so long. I'd imagine it'll go away as you start to ride it. If it doesn't then you may have more of an issue that needs to be addressed. Sometimes the seals and rings just need to get working again and they'll seal up. Sometimes they get dried out and they'll just need to be replaced.
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Old 05-22-2012, 11:28 AM
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DPR9EVX-9 is a platinum plug that was used originally in the sHawk.

DPR9EIX-9 Iridium plug was brought in later as a better alternative.

The iridium will likely cost a dollar more. Either plug will work well, but the newer type might last longer.
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Old 05-22-2012, 11:41 AM
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Originally Posted by BeerHunter View Post
DPR9EVX-9 is a platinum plug that was used originally in the sHawk.

DPR9EIX-9 Iridium plug was brought in later as a better alternative.

The iridium will likely cost a dollar more. Either plug will work well, but the newer type might last longer.
I thought the number didn't look quite right but it was with all my old info so that makes sense. You would want the EIX which is just the later OE plug
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Old 05-22-2012, 12:23 PM
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The main jet is a 51 and the pilot 45s
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Old 05-22-2012, 12:30 PM
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Originally Posted by Slicknick4209 View Post
The main jet is a 51 and the pilot 45s
Are you sure you found the right # on the main jet? If they are stock you should have a 175 in the front and a 178 in the rear also a way to tell they are the stock jets is there should be a star shaped symbol on them which would be the Keihin symbol (its not a "normal" star but kind of weird shaped)
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