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-   -   Not the speed I expected. (http://www.gz250bike.com/forum/showthread.php?t=5050)

dentheman 01-30-2012 08:23 PM

Not the speed I expected.
 
I went for my first 'freeway' ride on my Shadow 750 today, and only reached 60 mph. The bike runs great, but there was a strong cross wind both coming and going, and I do weigh around 240; so am I expecting too much for my bike to go 75-80 in those conditions? Also, I was using 5th gear (overdrive), is it bad for the engine to run at high speed in 4th gear? This bike does not have a tach, so I don't know the rpm's, but the manual states to shift from 4th to 5th at 31 mph.

blaine 01-30-2012 08:38 PM

Re: Not the speed I expected.
 
Quote:

Originally Posted by dentheman
I went for my first 'freeway' ride on my Shadow 750 today, and only reached 60 mph. The bike runs great, but there was a strong cross wind both coming and going, and I do weigh around 240; so am I expecting too much for my bike to go 75-80 in those conditions? Also, I was using 5th gear (overdrive), is it bad for the engine to run at high speed in 4th gear? This bike does not have a tach, so I don't know the rpm's, but the manual states to shift from 4th to 5th at 31 mph.

Your bike should have more power than that.It should run along at 70 to 80 effortlessly.Also not good to rev these bikes to much,as they are a v-twin.I'm guessing you still have a carb problem.I think you have a plugged main jet.
:) :cool:

dentheman 01-30-2012 08:47 PM

Re: Not the speed I expected.
 
I was thinking as much. After I got home I added a couple ounces of Seafoam, if I don't see some improvement in the next couple weeks I will take it to the dealer for a carb cleaniing and adjustment. I don't feel I can do that job myself.

Also, when I siphoned the gas I couldn't get it all, so I am thinking it still has some bad gas in the tank from sitting at the dealer and as I continue to add new gas the performance will improve. We will see.

blaine 01-30-2012 08:59 PM

Re: Not the speed I expected.
 
Quote:

Originally Posted by dentheman
I was thinking as much. After I got home I added a couple ounces of Seafoam, if I don't see some improvement in the next couple weeks I will take it to the dealer for a carb cleaniing and adjustment. I don't feel I can do that job myself.

It would help to take it for a ride with the SeaFoam in the fuel.You need to be out on the road for the Sea Foam to work it's way through the main jet.I had forgot that you had drained it out.It may take a full tank of fuel to see full effects.I have run a 1/3 of a bottle in a tank of fuel with no ill effects.Just a much cleaner carb.
:) :cool:

dentheman 01-30-2012 09:18 PM

Re: Not the speed I expected.
 
OK blaine, my plan for tomorrow is to gas up, add more Seafoam and head for the freeway again.

blaine 01-30-2012 09:24 PM

Re: Not the speed I expected.
 
Quote:

Originally Posted by dentheman
OK blaine, my plan for tomorrow is to gas up, add more Seafoam and head for the freeway again.

Good Luck.I think it will improve your performance. :cool: :)

Water Warrior 2 01-31-2012 12:20 AM

Re: Not the speed I expected.
 
Sounds like the bike needs more exercise and new fuel to spruce things up. I would think it should cruise nicely at 70 and still have a bunch of oomph left over.

jonathan180iq 01-31-2012 12:42 PM

Re: Not the speed I expected.
 
With the standard 15 tooth front sprocket, which you undoubtedly have, 80mph is within reason. It won't hold 80 all day long, but you can at least get into the 70s without effort. Make sure the chain is lubed and adjusted properly and that you've got good pressure in the tires. That stuff is more important on a bike than it is in a car.

dentheman 01-31-2012 02:36 PM

Re: Not the speed I expected.
 
Quote:

Originally Posted by jonathan180iq
With the standard 15 tooth front sprocket, which you undoubtedly have, 80mph is within reason. It won't hold 80 all day long, but you can at least get into the 70s without effort. Make sure the chain is lubed and adjusted properly and that you've got good pressure in the tires. That stuff is more important on a bike than it is in a car.

Shaft drive. That was one of the things I wanted so I wouldn't have to mess with a chain.

jonathan180iq 01-31-2012 03:28 PM

Re: Not the speed I expected.
 
Perhaps I should read posts fully before responding, huh? :retard:


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