October 21st, 2014, 09:32 AM | #81 | |
wat
Name: wat
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if this is the case, simply replacing the head bolts with fresh ones can fix the issue. if its just stretched bolts there might not really be any damage. i mean. honestly they would have been able to tell if it had a blown crank bearing when they had the head off... so if its not that its probably the head still. my money is on stretched bolts.
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October 21st, 2014, 09:53 AM | #82 | |
ninjette.org certified postwhore
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Aluminum shavings shouldn't do much, just blow out the exhaust after a coupleof cycles Try turning it over by hand (socket on the alternator bolt) and see if you can hear anything knock, if not it might be a shaving under a valve seat which a compression tester will show. |
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October 21st, 2014, 10:36 AM | #83 |
wat
Name: wat
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and if it is a shaving that has damaged the valve seat, a re-lapping isn't that big of a deal.
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October 21st, 2014, 11:31 AM | #84 |
Wrench wench
Name: The Stigette
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I know it's possible to fix it, but I'm completely out of patience for working on this bike, and I've been jonesing for something peppier for the whole season. I can't do the engine stuff myself, and it's not worth it to pay someone else even more money to do it for me, so yeahhh.
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October 21st, 2014, 12:07 PM | #85 |
wat
Name: wat
Location: tustin/long beach
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i'm all for buying more bikes... but maybe i'm on a different line of thinking. if its already broken and you've given up on it, what worse could you do to it? maybe its worth messing around with it just to learn about engines so you can take better care of the next one? best case, you fix it and have another engine. worst case, it's still broken.
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October 21st, 2014, 12:26 PM | #86 |
Wrench wench
Name: The Stigette
Location: DC/MD/VA
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If I had a garage, perhaps. I'd be tearing it down in a parking lot, so I can't leave it lying torn apart out there day after day. Everything needs to be buttoned back up at the end of the day. I don't own any engine lifts/bike stands/etc either, just ratchets and a torque wrench.
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October 21st, 2014, 01:13 PM | #87 |
wat
Name: wat
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you don't need fancy stands or lifts. and this is what kitchen tables are for!
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October 21st, 2014, 01:22 PM | #88 |
ninjette.org member
Name: Nick
Location: TN
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I need some parts, may be interested in rolling chassis if it's cheap enough where abouts are you located?
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October 21st, 2014, 01:30 PM | #89 |
Wrench wench
Name: The Stigette
Location: DC/MD/VA
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Pretty far from you, in the DC metro area. If I decide to sell it, I'll post it on ninjette of course.
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October 21st, 2014, 01:47 PM | #90 |
The Corner Whisperer
Name: Chris (aka Reactor)
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October 21st, 2014, 02:03 PM | #91 |
Inline 4!!!
Name: Danny
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Come on guys, leave her alone lol. She doesn't want to mess with it any more, I understand not wanting to mess with it after a certain point. Just toss it up on craigslist and call it a day.
RIP 248 Maybe save up for a different bike? Keep us updated on what you decide to do.
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October 21st, 2014, 02:49 PM | #92 |
.
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That sucks so much to hear about your bike. Just curious, how many miles did it go before it got to this point?
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October 21st, 2014, 03:19 PM | #93 |
Wrench wench
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Just a hair under 15k. :\ I treated it well and took good care of it while it was in my possession, too. Or at least I thought I did.
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October 21st, 2014, 03:22 PM | #94 |
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October 21st, 2014, 03:28 PM | #95 |
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October 21st, 2014, 03:57 PM | #96 |
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Sucks to hear it couldn't be saved.
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October 21st, 2014, 04:08 PM | #97 |
Wrench wench
Name: The Stigette
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October 21st, 2014, 04:19 PM | #98 |
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is it finesse's? After she killed your bike, you're buying hers?!?!?
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October 21st, 2014, 04:31 PM | #99 |
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October 21st, 2014, 05:32 PM | #100 |
ran when parked
Name: Katie
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RIP little ninja, join my 88 and 99 in ninja heaven.
There is a loud knocking noise at idle that quiets down when it's revved. It's hard to start, won't idle without choke and has low compression in the right cylinder, rides okay but I'd say it's pretty much toasted.
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October 23rd, 2014, 07:20 AM | #101 |
Wrench wench
Name: The Stigette
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I went and put it up on CL, just to see if I get any responses. Doing an experiment - two ads, one wordy and one succinct. Gonna see what gets more responses.
https://washingtondc.craigslist.org/...727515029.html https://washingtondc.craigslist.org/...727516067.html |
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October 23rd, 2014, 04:08 PM | #102 | |
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Quote:
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October 23rd, 2014, 05:02 PM | #104 |
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October 23rd, 2014, 05:03 PM | #105 |
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I have a question to ask, did you pull the plug back out after the helicoil to see if that was hitting the piston?
If the plug is hitting the piston they make indexing washers to shim the plug so it points toward one of the valves for a better burn, but you could use those to shim the plug out to prevent it from hitting the piston. http://www.summitracing.com/search?S...xing%20washers |
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October 23rd, 2014, 06:51 PM | #106 |
Wrench wench
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It's still at the shop, imma see it saturday. I don't think a mechanic would have put the plug in so bad that it was hitting the piston. I probably let some metal shavings fall in when I pulled that threadpiece out with the new plug, before it went into the shop.
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October 24th, 2014, 12:02 PM | #107 |
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I don't think the coil is wide enough to affect plug reach but I have seen the coils themselves turn with the plug, usually coming out but maybe being fresh machining here turning into the cylinder, just a thought.
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October 25th, 2014, 12:18 PM | #108 |
Wrench wench
Name: The Stigette
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Hahaha, alright, scratch all that - I just rode it back home. The threads were so gone that the helicoil didn't work perfectly, so the plug's not fully sealed around the edges and there's a little blowby. Bossman said it would feel like a 175 cc, but I spent 40 minutes at the highway at 65, at normal rpms. I think maaaaybe it accelerates a little slower, and it won't idle without choke/idles really high, but it's nowhere near as destroyed as I thought.
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October 25th, 2014, 12:26 PM | #109 |
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This statement confuses me. When I had mine repaired, they put the head on a drill press, drilled out the old threading, tapped it so it had clean threads (note that the hole is now bigger than before) and installed a helicoil that worked with the stock size spark plug.
In other words, the existing condition of the stock threads should have nothing to do with how effective the helicoil is, because they're going to be drilled out to a larger diameter and tapped to another thread any way. soooooooooo did the shop muck up and give you a BS excuse for why the repair didn't work as advertised? or are you just confused at how a Helicoil works? I don't mean to be blunt, but something in this whole situation rubs me the wrong way. |
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October 25th, 2014, 01:30 PM | #110 |
Wrench wench
Name: The Stigette
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I have a notoriously awful memory so I'm paraphrasing. I remember they did say they tapped it and it was bigger now, but for real, I will forget something you tell me about 30 seconds later. All I know is that the right cylinder doesn't have full compression. Whatever, I'm still selling it, I'm just glad I could ride it home.
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October 25th, 2014, 01:33 PM | #111 |
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I see a note pad and pen in your future for note taking.
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October 25th, 2014, 01:55 PM | #112 |
Wrench wench
Name: The Stigette
Location: DC/MD/VA
Join Date: Jun 2014 Motorcycle(s): TWO HUNDRED FORTY EIGHT CUBIC CENTIMETERS (R.I.P.), SIX HUNDRED FORTY FIVE CUBIC CENTIMETERS Posts: 415
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That would require me to remember to use it
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October 25th, 2014, 02:06 PM | #113 | |
ninjette.org certified postwhore
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Perhaps Finesse can backfill on what they did. Do you have an invoice that says tapping coiling or whatever yadda yadda new plug to fit $$ ? |
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October 25th, 2014, 04:51 PM | #114 |
ran when parked
Name: Katie
Location: DC/MD
Join Date: Aug 2013 Motorcycle(s): Freeride 250R, KLX250SF, mopeds Posts: A lot.
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I don't think the spark plug threads being stripped was the main problem. I think it's probably a symptom of whatever went on inside the engine. I didn't work on it myself so I don't know. I think diagnosing the actual problem would require pulling the motor and seeing what's going on down there, and we'd have to charge actual money to do that and will probably still find that it's ****ed beyond feasibly paying to fix at a shop or buying new engine parts. **** happens, bikes blow up sometimes, for a Ninja 250 it's easier and more cost effective to just buy a new motor or, even better, buy a new bike...
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October 26th, 2014, 05:16 AM | #115 |
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Wait, yall didn't even pull the motor?! Errrrmmm
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October 26th, 2014, 05:25 AM | #116 |
Que Buenos Son!!!
Name: Ryan
Location: Grovetucky, OH
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I can personally say that a couple of slivers of aluminum dropped into the cylinder should not screw up the engine. Ask me how I know.
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October 26th, 2014, 07:05 AM | #117 |
Wrench wench
Name: The Stigette
Location: DC/MD/VA
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I wouldn't even be able to pay for something that involved. Hell, I wouldn't want to, bike was barely worth 1200 when it was running 100%. They did me a huge favor and barely charged me, so I'm not gonna be a huge sourpuss. I'll sell it to somebody looking for a project, end of story.
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October 26th, 2014, 07:31 AM | #118 |
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Fair enough, I can respect that. Keep us posted with what you replace it with!!
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