honda CG 125 speed issues

rob1701d · Two Stroke Sniffer Joined: 25 Oct 2008 Karma :

Hi all i have been wandering around this great forum for a short while and it already has helped me with a few problems i have with my bike, but i have one quick question that i hope you can help me with Smile

ive only been riding bikes for a few weeks now and my first bike a honda cg 125 1996 seams to be running very slow. on a recent trip to the next town the best i could get out of her was 40-45mph! is this normal? im sure it should get up to at least 55-60. this was an open road with no other cars and was hoping to see what the bike could do and i wasnt to impressed Sad

dont get me wrong i love my bike i just wish it would go a bit faster. any advice u could give would be appreciated thank you

salty21 · World Chat Champion Joined: 07 Jun 2006 Karma :

how heavy are you? and was this up a hill? however slight it may seem it will make a fair difference
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04 NSR 125(sold) Sad

---- 03 CBR 600rr(sold) Sad

----90 pan euro ST1100 ' Shocked

' ----02 CG 125 Smile

94 CB400 Super Four ---- 2000 VTR SP1 (sold) ---- 08 ninja p8f(sold, meh) ----05 CBR600rr Smile

luke27 · Nova Slayer Joined: 15 Oct 2008 Karma :

rob1701d · Two Stroke Sniffer Joined: 25 Oct 2008 Karma :

thanks for the replys,

never really thought about things like weight. i weighed myself this morning and im about 17 stone (haven't weighed myself since i got married!! that was a shock!) Smile

as for the wether it was a bit windy and the road was an seldom used A road with many twists and turns and ups and downs.

all these things must be making a difference. i always assumed that if a bike was supposed to do 60mph then thats what it would do regardless of other factors like wether/weight. but at least i know that the bike is fine which is good. and i will try going up and down the same stretch of road to see if wind direction makes any difference
thanks for advice and the website link too guys Smile

rockers · Scooby Slapper Joined: 29 May 2008 Karma :

when you say 40-45 was the engine screaming or was it just no power ? sure you were in top gear ? does it aclerate ok ?

i have a kymco styker and engine is simular 125 cc and i get about 65 on the flat with no wind and im nearly bang on 20 stone

rob1701d · Two Stroke Sniffer Joined: 25 Oct 2008 Karma :

when i reach 45 mph it seams to have no power. its hard to explain as i know very little about bikes but it sounds like its struggling to keep the speed and wants to slow down or go up a gear even when its in top gear, lots of juddering. the bike acelerates very well and is a very nippy and easy to control bike for around the town even at slow speeds and pulls away quick at the lights, its just humiliating having cars overtake me on long roads when im trundling along at 40.

MaybeGuy · Super Spammer Joined: 12 Mar 2007 Karma :

does it have stock gearing?
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Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!! Mr. Green

Kickstart wrote: Hi I tend to agree with Matt. All the best Keith

Frost · World Chat Champion Joined: 26 May 2004 Karma :

I'm not light and i've got an indicated 65 out of one. They should be fairly quick to 55 then a bit slow after that.

Your checklist:

Check spark plug colour. If in doubt post a picture.
Fiddle with air filter, jets and mixture.
Compression test cylinder. As a high revving single it does alot of workand can easily wear out rings. Rebore and rings is very cheap and easy.

tutton · World Chat Champion Joined: 04 Jan 2008 Karma :

CG's are high revving?!
Since when.... Redlines at 9k lol.
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Past: '05 Peugeot XPS '99 Aprillia RS125 '94 FZR600R
Current: '02 ZX636 A1P '51 CCM R30

Frost · World Chat Champion Joined: 26 May 2004 Karma :

Yes cg's are high revving for a 4 stroke single.

Mine redlines at 5.5k.

rockers · Scooby Slapper Joined: 29 May 2008 Karma :

my kymco stykers a 124 4 stroke and last marked rpm is 10,000 ive had it just past that before - about 74 down hill

lozzypop1 · Certified MILF! Joined: 04 Jan 2006 Karma :

rob1701d · Two Stroke Sniffer Joined: 25 Oct 2008 Karma :

Well i managed to get 65 out of the bike yesterday Mr. Green

i checked all the thing that could be wrong and it turns out i was just changing gear to early Razz

i ranted it in each gear and only changed to 5th at the last possible second. i can now get 50-60 out of it no problem. thank for all your advice people, i guess i just needed more practice and confidence riding the bike (which can only come with time) thanks again for all the tips im sure they will come in handy if anything does ever go wrong in the future Smile