How do you derestrict a cg 125?

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How do you derestrict a cg 125?

Hi ive just bought a cg125 and just finished running it in was wondering if anyone new how to derestrict it to get that little bit of extra power?
Thanks Dave

They aren't restricted, they are naturally slow.Sorry, that's not what you wanted to hear was it

Zanx wrote

They aren't restricted, they are naturally slow.Sorry, that's not what you wanted to hear was it

i was thinking that lol....

Zanx wrote

They aren't restricted, they are naturally slow.Sorry, that's not what you wanted to hear was it

Nope, he wants to hear about that blind pipe on the exhaust header that you chop off and weld up, and of course the second air filter they use to reduce noise. Sorry fella, time for a bigger bike. I had a CG125 to learn on, back in the days when they had kickstarters and a drum brake up front. It was far from fast, but adequate for the job. Go much faster and you'll end up tying the suspension and tyres in knots anyway. Came off mine a couple of times due to trying that bit too hard. Also - did they get round to putting fold-up pegs on the buggers yet? That's a fun thing to learn in roughly that order!

blessmycg wrote

Nope, he wants to hear about that blind pipe on the exhaust header that you chop off and weld up, and of course the second air filter they use to reduce noise. Sorry fella, time for a bigger bike. I had a CG125 to learn on, back in the days when they had kickstarters and a drum brake up front. It was far from fast, but adequate for the job. Go much faster and you'll end up tying the suspension and tyres in knots anyway. Came off mine a couple of times due to trying that bit too hard. Also - did they get round to putting fold-up pegs on the buggers yet? That's a fun thing to learn in roughly that order!

Hehehe, same on Honda C70's.....lean.....lean.......skrrrrrrshhhhhh.....kewwwl skrrrrrshhhhhh some more............PIVOT....OHBUGGERIMGONNADIE!!!!!!!

Zanx wrote

Hehehe, same on Honda C70's.....lean.....lean.......skrrrrrrshhhhhh.....kewwwl skrrrrrshhhhhh some more............PIVOT....OHBUGGERIMGONNADIE!!!!!!!

has anyone not done that for derestricting CG, like said it prolly isn't 'restricted'. You may be able to tease more power by going with a bigger carb, free-er flowing filter, pipe and jetting to suit. But not worth the hass - I'd leave the bike as it is (reliable, solid).You could try changing the rear sprocket for one with less teeth. In theory that will give you more top speed if there's enough power to pull the gear. You'll trade acceleration and may well be slower up hills or need a few down shifts.hth

motopat wrote

has anyone not done that for derestricting CG, like said it prolly isn't 'restricted'. You may be able to tease more power by going with a bigger carb, free-er flowing filter, pipe and jetting to suit. But not worth the hass - I'd leave the bike as it is (reliable, solid).You could try changing the rear sprocket for one with less teeth. In theory that will give you more top speed if there's enough power to pull the gear. You'll trade acceleration and may well be slower up hills or need a few down shifts.hth

I'm not sure if the new ones have a rev counter, but I know mine never did, so it's hard to tell what you have left in reserve and whether or not the gearing is right. I once had 73 indicated emm pee aitches on mine... downhill, with the wind behind me! It was never going to go any faster as it was, and without a rev counter, I couldnt tell you if it was revving out or had more to give.

Could you swap the engine for a CBR125 unit? Can't be that different and they're good for 80mph at least.

u can actually buy big bores for youre honda cg for that little bit more power !!

Zanx wrote (see)

Hehehe, same on Honda C70's.....lean.....lean.......skrrrrrrshhhhhh.....kewwwl skrrrrrshhhhhh some more............PIVOT....OHBUGGERIMGONNADIE!!!!!!!

hehe i do this occasionally on deliveries on an innova - can never get sparks though i once did it from the main road onto a side road, gunned the throttle, touched the peg on the floor in the tightest turn i've done on anything - right infront of two bicycle police who were about the cross on the pavement. best day ever!! i wish i could have seen their faces. anything becomes comedy if executed with a big pizza box on the back j 

Without knowing the stud spacing, and maximum acceptable liner diameter of the receiving bottom end, it's kinda hard to say ain't it?

can you get alloys for a cg125 (2005) or will another bikes alloys fit?

ahhhh...Memories......I remember fitting High Tech Racing reeds to my RS100 to try and squeeze that bit extra.

And a 185cc engine to my GT100

Simple answer.  DON'T. Its designed as it is for a reason.  Its the same with GSX-R 750 owners.  Spend £8000 on bike and fit a Yoshi system for £1600.  They'd of been better just buying a Thou!!!

SeanTDG wrote (see)

can you get alloys for a cg125 (2005) or will another bikes alloys fit?

If the standard wheels are spoked, then they'll be alloy rims & hubs and far lighter than any cast or forged alloy wheels you might fit. Difference is that the cast or forged wheels will be stiffer and have better aerodynamics - but neither are really a concern for a CG.

hii yes you can the cb cdx and many other honda's mines old classic running honda ls wheels with full double pistons all round looking to put a xr185 engine in it lol

I am reluctantly buying a cg because its cheap haha. All I wanna no is are there any other wheels and tyers that'll fit (cg wheels are dangerously thin haha) and what small things can I do to make it a little bit quicker???

Oh god, we're back to this. Fitting wider tyres will actually make it slower - more rotating mass and more rolling drag. Low compression, push-rod engine - there's little "small" you can do to make it quicker. SOOO, things you could do: High flowing air filter and exhaust and upgraded or re-jetted carb. You *could* fit a higher compression piston but you'd need to ensure the valves weren't going to hit it. Strip off every ounce of unnecessary weight possible. Stripping it off the bike often increases drag, stripping it off yourself is generally cheapest & most effective. Well - it is if you're a fat git like me anyway.

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