Intruder 440 -79 Dragracing

[Habbeli]

Is there anyone who can answer how big pistons in a Intruder/Invader-engine should be at the top?
Because I have problems with my engine sounds like a rock crusher despite new pistons and cylinders are fine.
When I study my new pistons as they have become smooth and shiny between the piston rings on the exhaust side. I suspect that this is where the sound occurs 
Crankshaft is restored and as good as new 
Coating of the cylinders are also like new 

[sappony]

Absolutely gorgeous, that's a job well done.

[Habbeli]

Absolutely gorgeous, that's a job well done.

Thanks sappony 

[Habbeli]

I've Probably found the problem in the engine now.
I've let turning on the tops for racing and it was probably a bit too much racing 

[Habbeli]

Unfortunately, it was not the tops that was the problem, it's the pistons that do not measure up 

[Habbeli]

Is there anyone who has had problems with the chain cogs in the chain case?
I have everything new except for the lower pinion and has switched gears for drag racing, 19-39, green spring that I cut to 2.50-in. Nothing helps ..... 

[Habbeli]

This is how it looks today after remodeling   





I'm going to race this weekend 

[Habbeli]

And here is the final against a Yamaha V-Max 540 
you hear me pumping gas when the rap over in the chain case....
I talked to a friend who also has a Kawasaki (Invader) and he had the same problem with rapping chain before he rebuilt the chain case and put some Arctic-Cat parts in it with tension screw like Polaris 


http://www.youtube.com/watch?v=sRA-o7LFcmg

[Habbeli]

Is there anyone who has had problems with the chain cogs in the chain case?
I have everything new except for the lower pinion and has switched gears for drag racing, 19-39, green spring that I cut to 2.50-in. Nothing helps ..... 

No one who has this problem?

[Interceptor398]

As long as the chain lenght is correct, the pucks are in good shape and ATF transmission fluid to the correct level I've not heard of one failing.  Nice sled!

[kawhead]

not much trouble in chaincase....shorten the spring some more...whats the extra shaft in the middle of the tunnel? causeing track bind?

[Habbeli]

not much trouble in chaincase....shorten the spring some more...whats the extra shaft in the middle of the tunnel? causeing track bind?

It keeps up the track so it does not take into boggie

[kawhead]

78/79 rear suspension brackets had welded hoops on top,1980 had small brackets with wheels so i see what you are trying to do.....just seems odd you have c case problems and i hardly ever see that, even with 550s....

[sprocket]

Is there anyone who has had problems with the chain cogs in the chain case?
I have everything new except for the lower pinion and has switched gears for drag racing, 19-39, green spring that I cut to 2.50-in. Nothing helps ..... 

No one who has this problem?

I had that problem what I did was put in a aftermarket one( from the outside inward)Arctic Cat style (swinging roller arm) in the chain case took the stock stuff out (pucks with springs). One thing you should look for is alinement take a straight edge from gear to gear if the chain binds then your not aligned correctly. Most gears have a offset on them make sure you have them in correctly also some chains are not the same

[Habbeli]

Okay, I'm about to mount the sprocket and chain where I do not need a tensioner at all. The gears are aligned to 100% :-)