I will Put it together myself

[digitalhearing]

My son and I tore his motor down 2 weeks ago and finally got all the parts together to rebuild it.  My mechanic that comes over and helps isn't able to come this weekend so I am going to attempt to put it all together and get it running....here is what the new parts are:

New HotCam 3
New CP 11:1 piston
New Kenz ported head and +2 valves
Kenny +3 Throttle Body

I have watched but never installed the cam before, I am concerned with the decompression pin on the cam and setting the valves.  Other that I have installed a piston cylinder and head, they are pretty straight forward.

Any advice on installing the cam and decompression pin would be appreciated-or anything else that might be helpful.

Grant

[Pw383426]

Check out the service manual.... it's a little small, but it will show you how it goes in

[digitalhearing]

Check out the service manual.... it's a little small, but it will show you how it goes in

I will look at the manual, and see.  One thing that concerns me, before I took it apart I didn't get the piston to TDC and all 4 valves seem to be open, how can I spin the cam after the head is already off of the bike to relax the valves and springs?

Grant

[double06]

Wow, I don't know about the TDC part...   I could help you with the cam stuff once someone that has more knowledge says what to do about the TDC.  If that doesn't all get straightened out, you more than likely will end up out of time..  Now I could be totally wrong but that's just what I'm thinking off the top of the dome. 

[preddy08]

Check out the service manual.... it's a little small, but it will show you how it goes in

I will look at the manual, and see.  One thing that concerns me, before I took it apart I didn't get the piston to TDC and all 4 valves seem to be open, how can I spin the cam after the head is already off of the bike to relax the valves and springs?

Grant

That does'nt really matter, as long as when it goes back togeather properly at TDC.

[digitalhearing]

Yea, Preddy, you have it right, as long as the marks are all ligned up and the piston is TDC on the compression stroke it should be fine but how do you spin the cam with tention on it when it's off the bike?

Grant

[preddy08]

Yea, Preddy, you have it right, as long as the marks are all ligned up and the piston is TDC on the compression stroke it should be fine but how do you spin the cam with tention on it when it's off the bike?

Grant

You don't...lol

[yellowisthefastest]

Grant-It is easy, you can do it no problem. I think it is easier to cam in once the rest of the motor is all assembled.  All you have to do is have it at TDC and then reinstall the cam so that it all lines up. One thing OK two things is make sure the decompression pin is in correctly and also make sure you take the ENTIRE timing chain tensioner out so that you get the gear back on and also reset it correctly. Valves are a piece of cake as long as you follow the instructions.  Do those last.  There is a good write up on the old site that is very helpful.

[digitalhearing]

Thanks for the direction Yellowis.. I just got an Idea, I can loosen the valve adjusters on the rockers to take pressure off of the cam so I can rotate it and remove the cam to put the larger cam in.  As it sits now, all the valves are opened up and the cam has pressure on it and it won't spin.  I'll search "that" site for cam install and see if I can find the step by step.

Grant

[yellowisthefastest]

I dont know if there is a cam install guide, but a guide on adjusting your valves.   I think there is a cam install guide somewhere that I read, I will see if I can find it and send it. 
Edit:  Just emailed the link to you at the address in your profile.

[digitalhearing]

Well guys, I got the boys bike complete.  I spend a hell of a bunch of hours on it starting Friday night and got it finished on Sunday just after noon.  I had a little help from him but I pretty much did it myslef.. I spent a lot of time gapping the rings.  also taking the rockers out was challenging and getting them in correctly.   when we turned it over it started right away without hesitation and ran smoothly. Thanks for the advice from lots of guys that answered questions I had along the way.  Now I can't wait to do it again.  I think my wife is gonna want a big bore kit on 700 sometime next month   

Grant

[tonyrt44]

Your are not done yet.
Proper break-in is a major part of engine rebuild.
One thing in mind, do not be a sissy. give it hell when riding for the first 15 minutes. after properly heat cycling.

[digitalhearing]

Your are not done yet.
Proper break-in is a major part of engine rebuild.
One thing in mind, do not be a sissy. give it hell when riding for the first 15 minutes. after properly heat cycling.

Yea, good advice, heat cycling it should consist of warming it up for 5 minutes while riding it, then let it cool down and repeat 2 times?  Then retorque head bolts and adjust valves after the first full day riding?

Grant

[preddy08]

Your are not done yet.
Proper break-in is a major part of engine rebuild.
One thing in mind, do not be a sissy. give it hell when riding for the first 15 minutes. after properly heat cycling.

Yea, good advice, heat cycling it should consist of warming it up for 5 minutes while riding it, then let it cool down and repeat 2 times?  Then retorque head bolts and adjust valves after the first full day riding?

Grant

Some say to check the headbolt torque and valve clearence after the heat cycle, but I have NEVER had one move in that 20 minutes of heat cycles. I think that is just a way for you to double check that everything was done right the first time.

[tonyrt44]

Your are not done yet.
Proper break-in is a major part of engine rebuild.
One thing in mind, do not be a sissy. give it hell when riding for the first 15 minutes. after properly heat cycling.

Yea, good advice, heat cycling it should consist of warming it up for 5 minutes while riding it, then let it cool down and repeat 2 times?  Then retorque head bolts and adjust valves after the first full day riding?

Grant

NO sir.
Heat cycling is to let it IDLE untill the cylinder is warm to the touch. this happens in less than 3 minutes.
let cool down completly before the second heat cycle.
after it completly cooled down form the second heat cycle. No more heat cycles.

Ride time:  Warm up the engine till it reaches about 100 degrees. once warmed, give it hell. do not jerk the engine off the start. roll off easy and then WOT till fifth gear.
try loading the engine on decellaration as well, it will help the rings to flex, giving you the optimum seal.

Retorque the head bolts after completing couple of fuel tanks.