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Repair And Restoration

From the worst of the bodges to the craft of restoration...

chrome plated spanners and sockets in a plastic tool case

Z250SL Headlight Crazing Sharon is at risk of cracking up. So is the headlight on her Kwakker 250. Ren just makes the first problem worse but maybe he can help with the second.
Tour-A-Plank V2.6 One of Ren's bodges, with the help of Sharon, could perhaps actually possibly maybe almost quite good! Meet Tour-A-Plank Version 2.6.
A DIY Bullet Connector There's a small island in the remote wilderness of the Irish Sea. On this atoll lives a mad scientist and he's planning on world domination! One tiny teeny little bullet connector at a time. Nefarious or what.
State Of The Engine Address Not all adventures are of the going somewhere kind. Ren's latest adventure takes him on a treacherous journey to the centre of his engine. So what's it like inside a 90,000 mile 125cc motor?
State Of The Swingarm Address It is time for our brave heroic leader to venture into danger, to do that which must be done, to face the terror so you don't have to. Ren (cue dramatic music) is going to CLEAN (a bit of) the 125.
Honda Cub Debacle Bogger finds the tiniest speck of rust on his Honda Cub. Older men should never trust a fart or waste a... or think a job should only take an hour or two. Luckily he's got a friend at work.
Changing The Fork Oil Mark quite rightly points out that fork oil is all to often overlooked when if comes to servicing. However we CAN NOT recommend his ridiculous method of draining the oil.
Innova Tart Up Bogger's Innova might have been free at the point of acquisition but it's received some TLC since. This time he's battling the rust bugs, being careful not to "overdo" the job.
Kangarooing CBF125 In search of safer adventures Ren has transformed his smooth 125 into a bucking bronco ride. Is this first class muppetry or has he got an issue? (We know he has issues.)
A Cure For Vibrating Mirrors Vibrating mirrors is a thing, especially on a single. It turns out Mark is a real engineer with real skills who can create a solution. Oscilloscope, anyone?
See More

Reader's Comments

Tom McQ said :-
http://cb250n.blogspot.co.uk

01/01/2000 12:00:00 UTC
Ren - The Ed said :-
Cheers tom
01/01/2000 12:00:00 UTC
mick murphy said :-
Hi guys my honda 125 cbf is running at nearly 4000 revs in idle mode .any advie would be appreciated
01/01/2000 12:00:00 UTC
Ren - The Ed said :-
Hi Mick. Check the throttle cables are adjusted, check some idiot has not tried to adjust the throttle stop, this shouldn't need to ever be touched on the CBF 125.

Otherwise you're into the injector and you'll need to know what you're up to in there.
01/01/2000 12:00:00 UTC
RobE said :-
I have a tapping sound from my CBC on idle. Knocks seven or eight times then stops-does this repeatedly. Sounds a bit like a ratchet being turned slowly. Any of you guys come across this
28/05/2017 06:29:52 UTC
RobE said :-
CBF of course
28/05/2017 06:31:07 UTC
RobE said :-
CBF of course
28/05/2017 06:31:08 UTC
Ren - The Ed said :-
Hi RobE. It *could* be...possibly...perhaps...be the same problem as I had. Thing is check everything else before you start stripping the motor down.

Check out the links.

http://bikesandtravels.com/biker.aspx?ride=587
http://bikesandtravels.com/biker.aspx?ride=590
28/05/2017 07:53:24 UTC
Alfred said :-
I have a dominator nx650 1997 and I have a 1993 model wiring harness want to know wether it will work without any electrical problems.
02/08/2018 06:36:54 UTC
Ren - The Ed said :-
That's a fair old ask Alfred! You'd need access to the wiring diagrams for each year to see if there were any upgrades or alterations made. I daresay my first port of call would usually be Haynes manuals but I've checked their website and I don't see one listed for the Dommie.

Then I was going to suggest an owner's forum but I'm not doing very well there either.

https://www.lingshondaparts.com will show you the fiche diagram for each wiring harness for each year. A cursory look suggests the harnesses LOOK the same but that is not guarantee they ARE the same.

Good luck with the work Alfred.
02/08/2018 10:34:12 UTC
CrazyFrog said :-
Alfred, you could try asking your question on the Honda Trail Bike forum. They have a section for Dominator riders.


www.xrv.org.uk/forums/forum.php...
03/08/2018 07:56:03 UTC
Ian Soady said :-
Yes, I found them useful for my SLR650. Bob (once of this parish although he seems to have disappeared) posted some interesting stuff there. I have a vague feeling he's returned to the Honda singles after dalliances with various other marques.
03/08/2018 11:18:30 UTC
RobEll said :-
Sorry to add to your completed thread but I wondered if you had any tips or advice on adjusting Keeway RKV125 Tappets? It's not that I don't entirely trust the dealership but I have always taken some joy in maintaining my own bikes albeit mostly old, small capacity smelly strokers from the mid 80's. I'm assuming by the casing shape and engine numbers of Sharon's old RKS that they are likely to share the same engine. Any pitfalls or help gratefully received notwithstanding the excellent how-to tappet adjustment for the cbf. A great website by-the-by, and one of the main sources of inspiration/confidence to get back on two wheels after almost a decade away from bikes - thank you.
01/04/2019 11:08:48 UTC
Ren - The Ed said :-
I'm pretty sure the RKV has the same engine as the RKS - it should say on the engine casing KW127FMI.

Firstly - do you know how to set tappets?

The main pitfall is this. Access to the tappet adjustment is under 2 caps on the rocker cover. Getting the feeler gauges in there is fiddly to start with - BUT - the tappets are held closed by these springs under the cover. This is a real pain in the ass. The only solution I've come up with so far is to hold the tappet open with string.


02/04/2019 08:39:14 UTC
Ren - The Ed said :-
Getting the string in wasn't easy either.


02/04/2019 08:40:00 UTC
Ian Soady said :-
Or you could use my cunning plan of using the adjusters as micrometers as posted somewhere here.....
02/04/2019 03:04:27 UTC
Ren - The Ed said :-
Yeah true. If RobEll comes back and asks I'm sure you'll explain once again. I'd be tempted to remove the springs, the Suzukis which the motor is based on never needed them. But I would not dare to mess with Sharon's bike without written permission.

This week I offered to ride her bike back to my place and keep it during the week. This would allow me to get it MOTd without inconveniencing her in the slightest. The look on her face!! You'd think I'd just pooped in the corner of her kitchen. She did not like the idea of not having the bike at home, of me riding it unsupervised and the (not unreasonable) fear I might tinker with it while it's in my possession. Sheeeeeez!
02/04/2019 03:33:39 UTC
RobEll said :-
Thanks for the reply. The engine No is slightly different - KW157FMI. Perhaps not exactly the same engine. I have the basic idea of how to check valve clearances and a few years tinkerage in years past. I was considering taking off the valve covers only and giving them a check, but those non-valve related springs...why? The only issue I don't know how to check is alignment of the timing marks as I haven't taken the head off and as your photos suggest the rocker cover might lift off the entire rocker arm gubbins etc. Im not looking forward to that, perhaps I'm a little bit lazy. I'll start with checking them only and try out the routine of getting to and uncovering the valves. I'm between self-educated guess and half an idea about basic bike maintenance in terms of competence but sometimes I can bodge things into submission. The closest I can get to a Haynes manual is the Chinese motorcycle offerings, not yet purchased. I like the shoelaces idea though! Is there a window or other way I can align the timing marks accurately, perhaps similarly to the RKS? I know it's a bit of an ask knowing that the engines may indeed be slightly different, but hopefully similar enough.
03/04/2019 10:17:38 UTC
Ren - The Ed said :-
Sorry RobEll, typo, yes Sharon's RKS is a 157 not 127... Silly me.

If you give me some time I'll see if I can find some instructions online tomorrow. The engine is RIDICULOUSLY common so there must surely be a good solid guide somewhere. I'll let you know what I find.
03/04/2019 11:27:35 UTC
Ren - The Ed said :-
Hi RobEll. This video will give you the absolute basics but it's not exactly professional.
https://www.youtube.com/watch?v=xh2VX5jZ0Pw...
04/04/2019 01:47:45 UTC
Ren - The Ed said :-
This is a Suzuki manual, you're engine is a copy of this. At 2-5 is a very simple explanation of checking the valves
http://suzuki.com.pe/motos/wp-content/uploads/2016/12/GN125FSERVICEMANUAL.pdf...
04/04/2019 01:56:40 UTC
RobEll said :-
That manual is spot-on what I was looking for, thank you! I'd have a check at the clearances this weekend but the dealership had marked the plug over the timing window. I'll have to be careful to align it properly if I have look in the near future. Thanks again.
05/04/2019 10:40:20 UTC

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