97 FE501 Low power, or not?

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hillbillyjeeper

hillbillyjeeper

Joined
Mar 7, 2006
Messages
22
Location
Alta, Ca
I got my first husaberg at the beggining og this year. Done a good bit of riding on it. I gotta say, i love it! However, its just seems to be to not have the power i would expect from a 500. Of course, i came off a CR500, so that doestnt help. And having never ridden a husaberg, im not sure what to expect, or whats normal. In a straight out drag race, my buddies stock KDX200 will almost out pull my bike, and definitly outpull it top speed. I know my bike has more RPM. Just feels like it stops pulling about 75 or so.
What i know is, or, have been told, it has a 400 cam, i know its got flywheel weight, and was told it was rebuilt. Since i dont know, im going to go ahead and tear it down to inspect it. Anything in paticular i should look for?
 
Should be outpulling just about most bikes you come up against hillbilly, and definitely a kdx200, don't know about the 400 cam or if theres any difference, i was down on power recently and it was a valve problem (bent). Also check the gearing you are running. For it to be that much down on power dont leave it too long before you investigate the problem or it'll end in expensive tears :(
 
on a good condition 97 fe 501 engine the power is hardly less than 48bhp.
that is like 20 bhp more than a stock kdx200!!
there must be something with yours mate :wink:
 
Thanks. im not even going to be riding it again before i tear it down. Anything to look for, or upgrade, while im in there?
 
I THINK YOU're RUSHING INTO THE ENGINE WAY TOO QUICK. A SEMI-BLOCKED MAIN JET WILL ROB YOU OF 20 bhp.

go around the outside of the engine doing all the simple things first - and the cheap things -and then when you have a feel for it it may be necessary to tear it down.

by going round the engine you'll be sussing the condition of the plug, tappets, oil, air filter, ignition, igtnition timing and so forth.

you'll be amazed what man has discovered over the years from OUTSIDE the engine before even touching it INSIDE!

regards

Taffy
 
Thanks for the advice. but really, the main reason for doing a tear down is becasue i have no idea of the condition of the motor. It start fine, and seems to run fine, though weak. But i have no idea how many hours are on the bike, how many are on the rebuild, if it has even been at all recently. i juts feel better about it, knowing that everything is withing specs and in good condition within.
 
I know this post is older, But i finally found my problem. Went around the outside of the engine, Cleaned the carb, looked into rejetting just this last week, and finally broke down and pulled the rocker cover, and found the cam timing to be a tooth advanced. Also, from my research, i have a 53 cam, which apperantly 5* advanced from my stock cam as well. Should have it all back together tomarrow, and see how much of a difference it makes to have correct cam timing!
 
oh man! it is going to go straight to taffy's head! I am glad it is a simple fix!
 
hillbillyjeeper said:
In a straight out drag race, my buddies stock KDX200 will almost out pull my bike, and definitly outpull it top speed. I know my bike has more RPM. Just feels like it stops pulling about 75 or so.
Click to expand...

The last time I had my '97 501 on the street, the GPS read 92 mph when I shifted into 6th. Then I was at the end of my guts, or better, my brain kicked in: you don't do this kind of stuff in shorts ...

You will enjoy a completely different bike!

Franz
 
I only hope that thats gonna be the majority of the problem. I also need to check ignition timing and jetting, but im gonna see what the diference the correct cam timing makes first.
 
remember that the cam gear is worth if i remmber rightly 24 degrees so the difference in the cams (53 to 55) is about 1/5th of one camgear tooth. these numbers are out the top of my head but both cams should work fine as long as they are on the correct tooth of the cam.

not many people realise that the camchain slacking changes the cam tming 10-20 degrees over the years....

regards

Taffy
 
Taffy said:
remember that the cam gear is worth if i remmber rightly 24 degrees so the difference in the cams (53 to 55) is about 1/5th of one camgear tooth. these numbers are out the top of my head but both cams should work fine as long as they are on the correct tooth of the cam.

not many people realise that the camchain slacking changes the cam tming 10-20 degrees over the years....

regards

Taffy
Click to expand...
Yeah, i realize the differences is on 5* between the 53 and 55. And not enough to make much of a noticable difference...but, that on top what, 24* cam advance, so, almost 30* cam advance probably makes for some problems....
And i do realize how much you can be off just in a old chain...lucky everything in my top end looks brand new.
 
Man, I wonder if this has been one of the problems all along with my 98 FE501e. If you look in the archives, my 501 has always run slow, slow, s-l-o-w. Please report back if what you found made a big difference in restoring the performance.
 
FirstEliminator said:
Man, I wonder if this has been one of the problems all along with my 98 FE501e. If you look in the archives, my 501 has always run slow, slow, s-l-o-w. Please report back if what you found made a big difference in restoring the performance.
Click to expand...

Hopefully, i'll have a full report tomorrow. What i can say it, After getting it running (fighting a stuck float needle), It idled way better then ever, was way snappier, revved better, and sounded more aggressive. I should know tomarrow. Also, i was told, and its and easy way to check cam timing, At TDC, if you pull the water pump cover and rotor, the drive pin should be parallel with the valve cover surface. Obviously it would only work on the earlyer motors with the cam driven water pump. But it worked for mine. But i cant guarantee it works every time.
 
Well, Its deffinatly got more, and smoother power. I managed to pull 88.6 according to my GPS, better than the previous 75. IT felt like it might pull a few MPH faster if i had more room. Not quite the 100+ i hear people talk about with my bike. BUt my gearing isnt stock, at 14-46, and now i need to jet it. it was about 40 today, and i had to pull the choke off to get it to start. when it was cold. And with my 205 ready to ride, up hill, i guess close to 90 isnt bad....and all i can say is, i dont know when up here in the trees id ever have to go that fast!!
 

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