How fast does it go, mister?

Marktur

Member
Joined
Apr 30, 2008
Messages
471
Hi all,
I'm curious: How fast do you normally cruise when on longer, straighter roads?

How far do you turn the throttle when cruising?
How much does your bike shake at your normal cruising speed?
What does your motor and drivetrain sound like?
 


Marktur

Member
Joined
Apr 30, 2008
Messages
471
I normally cruise between 20-23mph to work. I have straights of 1-2 miles where I'm cruising at the same speed. I think I have the throttle turned about 1/3 - 1/2.

From 18mph+ it gets smooth running...I think I need to lean it out a bit. At about 27mph, it starts sounding like it's revving up pretty high. I'm using the stock sprockets. I don't know what too many rpms sound like in all honesty, as I have not yet held it wide open to see how fast I can go (nor do I really want to).
 
H

HoughMade

Guest
My bike likes 25-30 mph. It protests below 10 mph, but is pretty smooth from there. What does it sound like? A roto-tiller with an attitude. That 25-30 is at 2/3 to 3/4 throttle.
 
Joined
Mar 16, 2008
Messages
689
I usually cruise about 15-17 mph at about 1/2- 3/4 throttle that is were it smooths out for me running 50t. I opened my ports up, and yesterday was the first time I looked and the plug looked very "dry". I have moved the needle to full rich but havent been back out yet but I think the cleaned up ports will justify the additional air/fuel. My top speed has been 23, but I wouldnt do 23 for very long, I am still breaking it in. It is hard to tell what it really sounds like unless you let someone else ride it, but I would gues it sounds like a weedeater on steroids...
 

Marktur

Member
Joined
Apr 30, 2008
Messages
471
Ooooh....do show your ports!
Or let us know what you did and how...

I am going to start my 5th tank later. I think I'm going to mix in less oil this time before I make any other changes...let's see if this leans me out a bit more before I move the e-clip on the needle.

When I was racing RC 1/8 On-road, we were purchasing sick motors .21cc that were hand-worked in Italy...they were FAST! I've taken a dremel to a few little motors in the past, and had mixed results...obviously learning...but I'd like to see what you did, and also know how it affected the motor running, and your MPGs.
 
Joined
Mar 16, 2008
Messages
689
Ooooh....do show your ports!
Or let us know what you did and how...

I am going to start my 5th tank later. I think I'm going to mix in less oil this time before I make any other changes...let's see if this leans me out a bit more before I move the e-clip on the needle.

When I was racing RC 1/8 On-road, we were purchasing sick motors .21cc that were hand-worked in Italy...they were FAST! I've taken a dremel to a few little motors in the past, and had mixed results...obviously learning...but I'd like to see what you did, and also know how it affected the motor running, and your MPGs.

Going to less oil is not going to lean you out it is going to richen mixture less oil= more gas. Just keep an eye on your plug that will tell what the engine and carb are doing...


I didnt take any pics of the porting but this is how I did it....
Take your muffler/intake off, take an exhaust/intake gasket and put it on engine, then carefully cut out the gasket to match exhaust/intake port on engine (careful not to get shreds inside engine). When done take the gasket off being careful not to turn it around or turn upside down, then put it against manifold/ muffler and see how much metal needs to be removed. Trace with a marker then just match gasket wit a dremel, which in return matches intake/exhaust. My muffler blocked the exhaust port on the engine by at least 25%, prob 15% blocked on intake...
 
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Marktur

Member
Joined
Apr 30, 2008
Messages
471
Wow - worth a look for sure!

Rode home today a little faster. Avg. 23.5mph...I'm feeling better and better every day. Starting tank #5, which means 2.5 gallons through it. I put in 3.2 oz oil for the gallon.

I thought less oil would make it run a little more lean...thinking "nitro" I guess.

I'll move the clip down 1 notch in the AM. Tomorrow I may venture to the beach if all appears well.
 
Joined
Mar 16, 2008
Messages
689
I dunno Mark thats 40:1 I believe thats too little unless your using synthetic oil. I wouldnt go below 30:1 per my instructions and Im still running 25:1. You have more miles and tanks Im sure, I am only on third tank. im still breaking it in. The only way you will make it leaner is to "drop" the needle, move the clip up a notch. Less oil means more gas means richer, more oil less gas means leaner but also more chance of fouling and carbon buildup. Just watch your plug color....
 
L

Large Filipino

Guest
(I'm talking about Cronus,my rack mount Titan here)
Hi all,
I'm curious: How fast do you normally cruise when on longer, straighter roads?
I like to keep it around 20. Engine sounds nice at that speed
How far do you turn the throttle when cruising?
about a half an inch,
How much does your bike shake at your normal cruising speed?
Shake?
What does your motor and drivetrain sound like?
Scroll down to my riding video's.
http://www.youtube.com/user/largefilipino
 
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H

HoughMade

Guest
Took the bike out for a short ride to night- twice got it to 40 mph- it sounded fine there but I wasn't too comfortable there- like I said before- 25 to 30 and everyone is happy. The Honda wants to rev...not so much the rider.
 
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