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Old 11-22-2012, 09:28 AM   #5851
ArthDuro
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I came across this before and if I remember correctly I believe it was 20mm.


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Originally Posted by scrambler66 View Post
Does anyone know the size of the flywheel puller? In the factory manual the universal Honda tool with 16mm, 18mm, 20mm and 22mm threads is recommended, without bothering to mention which thread actually fits the NX250 flywheel
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Old 11-22-2012, 09:30 AM   #5852
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no just the bits the say "honda" in correct type and sizing, I ended up making my own versions of the rest.

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Originally Posted by wyowillys46 View Post
You've already got printable files for the stickers?
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Old 11-27-2012, 08:45 AM   #5853
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Ressurection Time

My 88 NX250 has been down for a couple of years now. It had sucked the valves and I thought it would be uneconomical to repair at the $600 the local shop quoted me. I found a used ebay engine for $150 and figured it may be worth the gamble.

I put the new engine in and tried to start it. It cranks but will not catch. This is where I am looking for suggestions.

- I have spark.

- I used my original CDI which I suspected was bad, and the new one I got off of ebay. Same results. Spark but no ignition.

- I am unable to do a good compression check until I can find an adapter small enough for the spark plug hole, I did the finger over the hole trick and it feels like good compression. ( I know, not reliable or accurate)

- Squirted starter fluid in carb, no dice. Put some gas directly into sparkplug hole, no dice.

What I am thinking after following the trouble shooting chart in the manual is mayber to check the timing. I havent done that on this bike yet so hopefully not too hard. I am also going to pull off the carb and go through it again.

Any other ideas from you guys that are more familiar with the NX?
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Old 11-27-2012, 08:48 PM   #5854
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Originally Posted by Ratchdaddy View Post
My 88 NX250 has been down for a couple of years now.
- I have spark.

What I am thinking after following the trouble shooting chart in the manual is mayber to check the timing. I havent done that on this bike yet so hopefully not too hard. I am also going to pull off the carb and go through it again.

Forget the compression and timing check and do the carb first . Since the ignition is producing sparks it is most likely the carb, which is probably full of junk after sitting around for a couple of years. Especially with gasoline containing ethanol - this is also acting corrosive to the jets. Honda recommends cleaning the carb after a immobilization time of more than 4 weeks in its workshop manual.
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Old 11-28-2012, 01:43 PM   #5855
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Quick question that needs quick answer!

I'm about to change the valve shims.. i know already the thickness i need but not the diameter.. Are they 7.48 / 7.5 mm??

Thanks in advance...
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Old 11-28-2012, 02:10 PM   #5856
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Quote:
Originally Posted by scrambler66 View Post
Forget the compression and timing check and do the carb first . Since the ignition is producing sparks it is most likely the carb, which is probably full of junk after sitting around for a couple of years. Especially with gasoline containing ethanol - this is also acting corrosive to the jets. Honda recommends cleaning the carb after a immobilization time of more than 4 weeks in its workshop manual.
You're probably right. That is what I am going to start with this weekend. I have to wait until the wife leaves the house. She hates when I use her pots for boiling the jets in. CA gas is the worst too.
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Old 11-28-2012, 03:19 PM   #5857
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Quote:
Originally Posted by Ratchdaddy View Post
...for boiling the jets in...
why do you boil jets?
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Old 11-28-2012, 06:17 PM   #5858
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Quote:
Originally Posted by Orkodelamuerte View Post
I'm about to change the valve shims.. i know already the thickness i need but not the diameter.. Are they 7.48 / 7.5 mm??
I used the 7.48
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Old 11-28-2012, 06:27 PM   #5859
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I used the 7.48

Good then, I'll order them right now. Thanks. May the stars shine bright in the sky so that I can get my bike back after 2 months at the mechanics.

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Old 11-28-2012, 07:40 PM   #5860
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New 19" front tire options coming '13 R1200GS

BMW's 2013 R1200GS will come with 120/70-19 front tires and 170/60-17 Rears. Down the road some other widths may show up for this bike and some other bikes with this size may come on the market.

Our NXs call for a 90/100-19 fronts. One of us wrote on ~ page 56 "Front 100/90-19, way bigger than TW39 but it fit under the fork brace. "

I used a "small and narrow" 70/100-19 knobby for two dual sport events, one very rocky day in Reading PA and one very sandy one in NJ. It did very well despite my 215 lbs.
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Old 11-29-2012, 12:36 AM   #5861
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Quote:
Originally Posted by 177in70s View Post
BMW's 2013 R1200GS will come with 120/70-19 front tires and 170/60-17 Rears. Down the road some other widths may show up for this bike and some other bikes with this size may come on the market.

Our NXs call for a 90/100-19 fronts. One of us wrote on ~ page 56 "Front 100/90-19, way bigger than TW39 but it fit under the fork brace. "

I used a "small and narrow" 70/100-19 knobby for two dual sport events, one very rocky day in Reading PA and one very sandy one in NJ. It did very well despite my 215 lbs.
I belive there will come more options to the 19", as more new bikes come with this. I use Continental ContiTrailAttack 110/80 R19 as summertyre. It fits nice, with a fingers distance:

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Old 11-30-2012, 12:16 AM   #5862
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Quote:
Originally Posted by fiep View Post
why do you boil jets?
I have put a few older bikes back on the road that the carbs were absolutely gummed up. I have the carb dip, I have used tiny copper wires to poke out the jets, but the method that I have used for the most stubborn is boiling the jets for a few minutes then poking them with copper wire. Not my idea, got if from the net, but it works.
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Old 11-30-2012, 04:46 AM   #5863
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man am I glad hubby bought me that oversized jewlery cleaner
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Old 11-30-2012, 07:03 PM   #5864
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man am I glad hubby bought me that oversized jewlery cleaner
Cool, She has one of those also. I never thought of that.
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Old 12-02-2012, 12:11 AM   #5865
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Spent the afternoon showing my 17 year old son how to read the manual and he did most of the work. He pulled the carb from the bike. We took apart the carb. The main and slow jet were good but there was lots of gunk in there. Showed him how to clean it and explained what each part did. We put it back together and went to fire it up and nothing at first.

I could see the dissapointment after the last couple of hours making the carb spotless, we both thought it would fire. I thought the tank was clean enough and took that for granted. I was wrong. The petcock was also clogged.

He went in to shower off the carb cleaner and gas to get ready for a date. When he came back out, he came back out to a purring NX250. WOOHOO. He wanted to bail on his girlfriend and work on the bike some more. I advised him against that. From personal experience, I know that there are some things that you have to balance your love of motorcycles with.

We are going to have to clean the tank real good. Somewhere in the past the tank was creamed or some other treatment. Now it is coming off in spots. The petcock was clogged with a gummy substance.

He is pretty excited. We still have some work to do to get this bike on the road, but the brass ring is within reach.
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