|
|
| Author |
Message |
| lukehanham |
This post is not being displayed .
|
lukehanham
Two Stroke Sniffer
Joined: 19 Feb 2015
Karma :  
|
 Posted: 16:19 - 02 Apr 2015  Post subject: More issues with my bike! [ Help Please! ] |
 |
|
So after finding that the bike wont kick i put a new spark plug in and a week or so later i think it has been fouled by excessive amounts of oil.
The plug is very black when i pull it off
https://puu.sh/gVIlY/91135ab244.png
Now, the bike wont start anymore, not even a bump start.
Things i will be ordering tonight are:
New spark plug
New HT Coil
Other than that when the bike is running it is sputtering loads.
I have just installed an air filter as the previous owner seems to have thought it was not a needed part.
Any other things i can try in the meantime?[/img][img][/img] |
|
| Back to top |
  |
You must be logged in to rate posts |
|
 |
| Rogerborg |
This post is not being displayed .
|
Rogerborg
nimbA
Joined: 26 Oct 2010
Karma :  
|
| Posted: 17:51 - 02 Apr 2015 Post subject: Re: More issues with my bike! [ Help Please! ] |
|
|
Looks like soot to me rather than oil, i.e. running rich.
| lukehanham wrote: | I have just installed an air filter as the previous owner seems to have thought it was not a needed part. |
And he'll have had it running rich as well because racebike.
With any luck all he's done is set the idle mixture rich, and maybe moved the needle up. Worse case, he's been at the jets, but I wouldn't assume that straight away.
Any clues what bike, or shall we guess from the plug? Gilera!
____________________
Biking is 1/20th as dangerous as horse riding.
GONE: HN125-8, LF-250B, GPz 305, GPZ 500S, Burgman 400 // RIDING: F650GS (800 twin), Royal Enfield Bullet Electra 500 AVL, Ninja 250R because racebike |
|
| Back to top |
| |
You must be logged in to rate posts |
|
|
| lukehanham |
This post is not being displayed .
|
lukehanham
Two Stroke Sniffer
Joined: 19 Feb 2015
Karma :
|
| Posted: 21:12 - 02 Apr 2015 Post subject: |
|
|
Should i up-jet or downjet, carb adjustments did nothing  |
|
| Back to top |
| |
You must be logged in to rate posts |
|
|
| temeluchus |
This post is not being displayed .
|
temeluchus
World Chat Champion
Joined: 01 Oct 2008
Karma : 
|
|
| Back to top |
 |
You must be logged in to rate posts |
|
|
| WD Forte |
This post is not being displayed .
|
WD Forte
World Chat Champion
Joined: 17 Jun 2010
Karma :
|
|
| Back to top |
| |
You must be logged in to rate posts |
|
|
| Rogerborg |
This post is not being displayed .
|
Rogerborg
nimbA
Joined: 26 Oct 2010
Karma :
|
Posted: 07:17 - 03 Apr 2015  Post subject: |
|
|
| lukehanham wrote: | Should i up-jet or downjet, carb adjustments did nothing |
Back up a bit.
What adjustments?
Back up further, what bike?
What I'd do is clean the plug thoroughly (or get a new one), then start the bike up and let it idle. Don't rev it. Get it off the choke as soon as possible and be sure that the choke is actually coming off. Double check that the air filter is correct and that there's nothing blocking it.
Then tune just the idle mixture, aiming to maximising the revs, let it run for a bit longer then check that the plug isn't fouling.
It's unlikely that the previous owner has meddled with the idle jet (if it's got one rather than just a bush) so if you can't get the idle mixture right then something is seriously wrong.
One step at a time though, don't just start throwing parts at it or changing multiple things at once.
____________________
Biking is 1/20th as dangerous as horse riding.
GONE: HN125-8, LF-250B, GPz 305, GPZ 500S, Burgman 400 // RIDING: F650GS (800 twin), Royal Enfield Bullet Electra 500 AVL, Ninja 250R because racebike |
|
| Back to top |
| |
You must be logged in to rate posts |
|
|
| Taught2BCauti... |
This post is not being displayed .
|
Taught2BCauti...
World Chat Champion
Joined: 12 Jan 2012
Karma : 
|
| Posted: 08:06 - 03 Apr 2015 Post subject: |
|
|
You previously posted about a Gilera RCR50, so I assume we are still talking about the same machine?
I would spend my time and effort getting the relevant parts and configuration back to the factory settings - so do you have a workshop manual to go by?
I get the impression that either you or the previous owner wasn't entirely satisfied with the performance and has attempted to squeeze a few more horses out of it - but you will never solve these problems unless you can get the engine running with the original setup.
The main things to concentrate on, are Compression, Valve and Ignition Timing, Spark Plug type and gap (why doesn't anyone check the gap any more?), Carburettor jetting and adjustment.
____________________
Honda Varadero XL125(V8)
www.TheFutureIsHere.eu |
|
| Back to top |
 |
You must be logged in to rate posts |
|
|
| Rogerborg |
This post is not being displayed .
|
Rogerborg
nimbA
Joined: 26 Oct 2010
Karma :
|
|
| Back to top |
| |
You must be logged in to rate posts |
|
|
| Taught2BCauti... |
This post is not being displayed .
|
Taught2BCauti...
World Chat Champion
Joined: 12 Jan 2012
Karma :
|
|
| Back to top |
| |
You must be logged in to rate posts |
|
 |
Old Thread Alert!
The last post was made 10 years, 270 days ago. Instead of replying here, would creating a new thread be more useful? |
 |
|
|
Help & FAQs
Search BCF
Members
Groups
Events Calendar
rating
rating