Running Rich????

[NSRboi]

During the winter my NSR always started up a dream. It seems to prefer the cold air.

The last few weeks, ive had some starter problems. When starting, the engine seems to have difficulty in turning over, after a few attempts it does finally start. Thought, initally it was the battery, so I used my battery optimiser and it indicated that there was no probs with it.

I changed the spark plug yesterday, and noticed that it was fairly sooted. Replacing the spark plug aint helped. My revs which normally idle at 1500 have gone up to about 17-1800. My mate suggested that my bike is running rich and the carbs needs adjusting.

Any ideas guys?
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Never underestimate the healing powers of custard.
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[Ropehead]

Cold air does expand more giving you more PUNCH,
the mixture setting wont have changed by them self's so I don't think its that, probably just needs a good clean out, Airfilter, carb..
anyway best way to see of your bike is running rich is the plug, it should be a nice coffee brown, if its lighter its too hot (2 much air). darker and oily (2 much oil).

hope this helps

[McJamweasel]

Does it run ok once its started?

If not check the choke cable-it could be stuck on a little.
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[NSRboi]

I took the sparkplug to Honda and showed it to the engineer. He said it wasn't too bad. He showed me how to reduce the idle revs, which were settling at about 1800. Got it down to a more reasonable 15-1600.

He suggested that I take the bike out for a good long thrashing to clear it out a bit, short journeys to work (15 minutes) every day aint helped. He said that my bike deffo isnt running rich either. Said that little or no smoke from the exhaust.

Im so used to hitting that starter button and the bike jumping into action. Last 2 weeks its making a horrible slow churning noise which has worried me. After 2-3 more attempts it usually recovers.
____________________
Never underestimate the healing powers of custard.
Get in touch with yourself by touching yourself. If anyone is watching, stop touching yourself.

[craigT19]

yeah thrash it a little when two strokes are ridden like 4 strokes they start sotting up causing all sorts of probs so take it out for an hour and trash the nuts off it.
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Bikes owned :- 2001 nsr125, 1999 zx6r, 2006 yzf-r1, 2009 xmax 250, 2012 yzf-r1, 2015 MT-07
Current bike : - 2016 MT-10
BCF member pops. sadly missed 1945-2003

[Robby]

yeh my bikes the opposite to that - after the rideout on sunday which had me and craig flat out for about 2 hours, my bike was not happy on the ride home. ok again by monday.

[tanner18]

my nsr used to be cloggy smoked like mad better rich than lean
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inline 4's rule

[McJamweasel]

I go for the middle ground - thrash it on the 15 minute ride to work
____________________
BCF: Be yourself, just don't be an arse.

[NSRboi]

Ive taken the bike out, and gone on a few long runs, nice high revs, working really well as usual. Still having some tempremental starter probs though (mostly when warm starting funny enough). Im convinced its something to do with the warm weather, its fine when the airs colder.

The starter motor is ok, the engine just makes a churning noise, then the starter whizzes. After the 2nd or 3rd attempt it starts ok. I asked one of my mates was it poss be the airfilter, and he said the airfilter really only works when the bike is running. Its due its first proper 3,000 mile service, so if its not any better, i'll ask Honda to have a look at it.

Ive stopped using BP Cleaner Unleaded fuel, and moved to BP Premium Unleaded, cause its funny, since I changed 2 weeks ago, thats when I started having problems.
____________________
Never underestimate the healing powers of custard.
Get in touch with yourself by touching yourself. If anyone is watching, stop touching yourself.