Get 125cc Bike to Cruise Nicely

[Guest]

Hi Guys

First propper post here. Introduced my self in the Newbies section. Im looking to find out how to get my Suzuki EN 125-2 to cruise a bit better. Top speed is about 60 on a straight flat road, id like to get it to cruise at 60 nicely or 70. 60 at the moment is a real strain on the bike. Is there anything i can do, easily to the bike to help me get a more compftable cruising speed?

Thanks in advance guys..

Chris

[DeeJ]

Nope, do your test and get a bigger bike

[Guest]

Sorry DeeJ, but you're wrong It seems like you didn't read the post correctly, or just jumped on the band wagon of "get a big bike".

Well cakonopka, you can do, but it will affect your acceleration. You can loose a tooth or two off the rear sprocket, or one off the front or something along those lines, and this will help it cruise a lot easier.

But, all in all, the best solution is to just get the test passed asap Although it may only cost you £10 for a different front sprocket! So could be worthwhile.

Cheers, CobbZ

[Fozzie]

Plenty you can do, they are bullet proof engines so the following shouldn't harm it too much...

1) Find the right Iridium spark plug, people have always told me these don't do much but on a 125, every little helps. They make a much better spark with less voltage from the battery and combust the fuel more efficiently. This will boost acceleration a small amount though power will only really gain by about 0.5 horse power. However for about £10 its worth it.

2) Would this fit?

http://images.wemoto.com/full/FILTER_AIR_PERFORMANCE_CONICAL/10016576.jpg

I fitted on onto a Honda CG engine and it boosted power by 2 horse power as the air box was heavily restrictive. You can buy conical air filters from Wemoto and if you have a carbed bike find the right jet and increase it by about 3 or 4 sizes to keep the bike running rich rather than lean. Just look at your spark plug to tell if its running rich or lean every now and again and adjust where needed.

3) A clean service so new oil. Fully synthetic is usually thinner and gets around the engine more so use some of that.

4) Reduce the rear sprocket size and when you do this replace the chain and front sprocket if they are at all worn. Knock off 3 teeth.

5) Is there a different exhaust available for your bike? If so does it allow it to breathe more freely? Get the only that allows for that.

If it was doing 60mph top speed before I can say with all this done it will probably kick out 70-75 down a hill. As you will have boosted power to that of the bigger 125s. My YZF-R can do 85 before it hits a limiter and would do 90 without it.

[Guest]

Thanks CobbZ and Fozzie3000

Will have a look into all of them ideas, seems so nice easy things to do with a little research. I think id be happy with it just cruising along a little better at 60 really, just at the moment am pushing it a little i think.

But i do agree i will just need to do my test and get a bigger bike, just gotta get used to changing gears etc, getting used to it day by day. lol.

Thanks again guys.

Chris

[Guest]

Well, 125s are generally always ran at pretty much top revs So don't worry too much about your bike blowing up! But yeah, if you're on a budget, just get a different rear sprocket... A new spark plug can't hurt (get an iridium one as Fozzie suggests, mine are iridium and seem good).

Although, (sorry Foz mate), i wouldn't bother with increasing the jets. Just means you'll be using more fuel, and so its just not worth it.

[rennie]

easiest way to make any bike faster?

Loose weight!

( it's true!)

[Guest]

Ha ha ha

I've just thrown away the pies, maybe in a few weeks a few less pounds will help me get a little faster, lol.

Chris

[Fozzie]

Well, 125s are generally always ran at pretty much top revs So don't worry too much about your bike blowing up! But yeah, if you're on a budget, just get a different rear sprocket... A new spark plug can't hurt (get an iridium one as Fozzie suggests, mine are iridium and seem good).

Although, (sorry Foz mate), i wouldn't bother with increasing the jets. Just means you'll be using more fuel, and so its just not worth it.

 

It does on the accelerating part but when you hold speed it just settles back to what it needs to hold the rpm. Or at least thats what I found with 125's. If you thrashed it you lost 10mpg over all which was 20 miles less range per tank for me. Then I tested it with just holding the speed like a commuter and I gained it back to within a mile or 2 of the original range!

So its like going up to a bigger bike, 500cc+ bikes tend to have the same MPG if they just cruise along. The Kwaker Versys 650 does 63mpg and a BMW F800 can kick out the same!

[Guest]

Plenty you can do, they are bullet proof engines so the following shouldn't harm it too much...

1) Find the right Iridium spark plug, people have always told me these don't do much but on a 125, every little helps. They make a much better spark with less voltage from the battery and combust the fuel more efficiently. This will boost acceleration a small amount though power will only really gain by about 0.5 horse power. However for about £10 its worth it.

2) Would this fit?

http://images.wemoto.com/full/FILTER_AIR_PERFORMANCE_CONICAL/10016576.jpg

I fitted on onto a Honda CG engine and it boosted power by 2 horse power as the air box was heavily restrictive. You can buy conical air filters from Wemoto and if you have a carbed bike find the right jet and increase it by about 3 or 4 sizes to keep the bike running rich rather than lean. Just look at your spark plug to tell if its running rich or lean every now and again and adjust where needed.

3) A clean service so new oil. Fully synthetic is usually thinner and gets around the engine more so use some of that.

4) Reduce the rear sprocket size and when you do this replace the chain and front sprocket if they are at all worn. Knock off 3 teeth.

5) Is there a different exhaust available for your bike? If so does it allow it to breathe more freely? Get the only that allows for that.

If it was doing 60mph top speed before I can say with all this done it will probably kick out 70-75 down a hill. As you will have boosted power to that of the bigger 125s. My YZF-R can do 85 before it hits a limiter and would do 90 without it.

 

Do you have a dyno Fozzie? How can you make claims of increased power without one?

To much dodgey advice on this site

[Guest]

Well, 125s are generally always ran at pretty much top revs So don't worry too much about your bike blowing up! But yeah, if you're on a budget, just get a different rear sprocket... A new spark plug can't hurt (get an iridium one as Fozzie suggests, mine are iridium and seem good).

Although, (sorry Foz mate), i wouldn't bother with increasing the jets. Just means you'll be using more fuel, and so its just not worth it.

 

CobbZ

If he kits K&N filters he will have to rejet!!

[Guest]

changing the sprocket sizes means you will be at lower revs for the same speed, so you may get to your holy grail of 70mph, but it may take you the end of that dual carriageway to achieve it, i'd stick with std, as it gives you a decent range for both overtaking and cruising..

[Guest]

[Bill_on_a_bike]

Disable the rev counter and get some decent ear plugs, then you won't know if it's screaming or not, apart from the ball shattering vibration. New air filter and jets sounds like it works well if done properly, but is very easy to get wrong. If you thrash the bike running lean you do stand to do some damage. Rear sprocket will work but as has been said I wouldn't bother you'll just struggle at the lights all day long.

If you can reduce drag in anyway that'll help alot, make sure you're jacket is a tight fit, don't want it flapping around like a parachute. Get your head down a little further, keep your visor shut, knees in.

Make sure you're chain is well maintained, a stiff rusty old chain will sap a bit of power, and make sure your tyres are the correct pressure.

[Fozzie]

Do you have a dyno Fozzie? How can you make claims of increased power without one?

To much dodgey advice on this site

 

Did it to a Varadero 125 and had those gains. And I read up on the Honda CG upgrades and asked a few people who had them what the gains were. They matched what I posted.

Dodgey advice is better than no advice

And considering I have upgraded about 5 125's in this manner I'd say it was pretty good dodgey advice too

I could try to find the Dyno readings from my old Vara

[Guest]

Dodgey advice is better than no advice

 

MATE, i have to completely, and epicly, disagree with you.

Thats ridiculous!!

Its like, yes mate, you can get ride of spots by running into a wall very fast.

Or, someone could NOT advise someone to do that :S

Crazy stuffs.

I just think we should see 125s as what they really are. Simple, cheap, low-speed machines. Stepping stones, if you will.

Stop trying to get them to do things they just aren't meant to do.

[Guest]

every one know s 125 s dont cruise. Get ya test done and get a bigger bike. Then no need to worry about cruisin at 60. You ll just about be knocking it into 2 nd at that speed.

[Guest]

Dodgey advice is better than no advice

 

MATE, i have to completely, and epicly, disagree with you.

Thats ridiculous!!

Its like, yes mate, you can get ride of spots by running into a wall very fast.

Or, someone could NOT advise someone to do that :S

Crazy stuffs.

I just think we should see 125s as what they really are. Simple, cheap, low-speed machines. Stepping stones, if you will.

Stop trying to get them to do things they just aren't meant to do.

 

AGREED!!!!

How can any body bad advice is better than none!!!!!!! Bad advice is worse than none!!!

[Guest]

Do you have a dyno Fozzie? How can you make claims of increased power without one?

To much dodgey advice on this site

 

Did it to a Varadero 125 and had those gains. And I read up on the Honda CG upgrades and asked a few people who had them what the gains were. They matched what I posted.

Dodgey advice is better than no advice

And considering I have upgraded about 5 125's in this manner I'd say it was pretty good dodgey advice too

I could try to find the Dyno readings from my old Vara

 

I find it very hard to believe that these people you have spoken to have spent money on dyno time! More likley the induction "roar" with K&N makes them think there is more power!

[Guest]

Well very well settled, lol,

I'm gonna get my test done in the new year and get my self a bigger bike. Means i can save some money now to buy the new bike. No point spending money for little gains.

Thanks for all the advice, well most of it, lol, apart from the Bad advice, lol.

Chris

[Guest]

One last thing

As i have a Suzuki EN 125, would i see much performance change in getting a Honda CBR 125, as i cant afford to do test or get a new bike for a good 6 months i think.

Chris