Adult version engine now! :)
Adult version engine now! :)
As some may remember, after the quick, successful test last year I kept looking for a 63hp camshaft. I finally got a good one some time ago for 55EUR and managed to pass technical inspection where I finally legalized my at least 15 year old Mecadapo silencers (thanks again to Robert for the exhaust documents) and also got rid off the stupid tire brand restriction.
I also learned what "wirksame Breite" (effective width) of a handlebar means and will be able to tell the police next time they come with their ruler ...
Non-Germans probably do not know now what I talk about. Don't worry, this is a reason to be happy.
Finally, after all now I am (like probably most of you) the proud owner of a 63hp CB650. As already stated elsewhere, there is a small but feelable increase of power and torque and the engine just runs a bit better without asking for re-jetting or other modifications. Fuel consumption seems identical or even reduced. Next item to try out is side-gapped spark plugs.
I also learned what "wirksame Breite" (effective width) of a handlebar means and will be able to tell the police next time they come with their ruler ...
Non-Germans probably do not know now what I talk about. Don't worry, this is a reason to be happy.
Finally, after all now I am (like probably most of you) the proud owner of a 63hp CB650. As already stated elsewhere, there is a small but feelable increase of power and torque and the engine just runs a bit better without asking for re-jetting or other modifications. Fuel consumption seems identical or even reduced. Next item to try out is side-gapped spark plugs.
Re: Adult version engine now! :)
Thanks. I hope to get it tamed and it will not tear my old engine to pieces.
And I also hope for the opportunity of a long term comparison of fuel consumption.
During the change of the camshaft I got the idea to add a small O-Ring into the rev counter cam holder where it always was leaking oil a bit. So it seems my engine is now perfectly tight for the first time since I have it. Which means it took me 15 years and 70000km.
And I also hope for the opportunity of a long term comparison of fuel consumption.
During the change of the camshaft I got the idea to add a small O-Ring into the rev counter cam holder where it always was leaking oil a bit. So it seems my engine is now perfectly tight for the first time since I have it. Which means it took me 15 years and 70000km.
Hi Buber,
I bought mine from www.bike-teile.de which is a German internet platform for dealers to offer new or used parts. Currently there is an offer from the dealer I got mine from, however he now wants 89EUR + shipping . I would not have spent that much.
When you have the chance get one, make sure all lobes are allright. I have a 63hp one that is really perfect except for two lobes. But fixing that would have been above 100EUR (probably even per lobe but I did not ask for details any more then ).
For identification:
63hp means assymetric ~36mm lobes, 50hp is symmetric 33mm lobes. Here is a picture showing both versions for comparison:
I bought mine from www.bike-teile.de which is a German internet platform for dealers to offer new or used parts. Currently there is an offer from the dealer I got mine from, however he now wants 89EUR + shipping . I would not have spent that much.
When you have the chance get one, make sure all lobes are allright. I have a 63hp one that is really perfect except for two lobes. But fixing that would have been above 100EUR (probably even per lobe but I did not ask for details any more then ).
For identification:
63hp means assymetric ~36mm lobes, 50hp is symmetric 33mm lobes. Here is a picture showing both versions for comparison:
Re: Adult version engine now! :)
Yes, enjoy riding as it is. I still had fun after the change back to 50hp last year so the effect is not really that dramatic to justify to much cost or effort.
Re: Adult version engine now! :)
Sooo, where to start?
Replacemen went smooth, except 3 threads that needed helicoil, but after that it was all straightforward. Impressions? Well, definitely better pull, and overall more "brute" behaviour - bit more vibrations, more grunt, and definitely much louder
As per economy, i need to go through this tank to say something. I'm hoping for good results. Next I will play with main jest and opening of the airbox.
Aha! And it does warm up faster, and runs a bit hotter, but it's no big bother.
So - I'm a happy camper now. I do have an ADULT engine now!
Replacemen went smooth, except 3 threads that needed helicoil, but after that it was all straightforward. Impressions? Well, definitely better pull, and overall more "brute" behaviour - bit more vibrations, more grunt, and definitely much louder
As per economy, i need to go through this tank to say something. I'm hoping for good results. Next I will play with main jest and opening of the airbox.
Aha! And it does warm up faster, and runs a bit hotter, but it's no big bother.
So - I'm a happy camper now. I do have an ADULT engine now!
Re: Adult version engine now! :)
Buber wrote: So - I'm a happy camper now. I do have an ADULT engine now!
Congratulations! I guess you will find it really worth it.
Cosky's great (free) online manual: http://cosky0.tripod.com
forum links to common technical issues
If you really like this site and you would not like to see it vanish soon, have a look there: Urgent: Future of HondaCB650.com Forum
forum links to common technical issues
If you really like this site and you would not like to see it vanish soon, have a look there: Urgent: Future of HondaCB650.com Forum
Re: Adult version engine now! :)
I put a cb550 camshaft in mine ansd gas flowed the head now in getting 68hp output.
Re: Adult version engine now! :)
Cosky - just don't... It took me some time to find one and ship it here. Now you are telling me I need to find another?
Now seriously - engine truly pulls stronger, but... I think the consumption actually went up. Anyway - today is Friday, I'm riding for a small meeting, I will go through 2 tanks probably, so I will report on Monday.
Now seriously - engine truly pulls stronger, but... I think the consumption actually went up. Anyway - today is Friday, I'm riding for a small meeting, I will go through 2 tanks probably, so I will report on Monday.
Re: Adult version engine now! :)
If you make use of the increased power, it is no surprise that the consumption goes up.
I found absolutely no difference there when keeping my riding style identical and I think Robert reported the same. But maybe the CV carbs (I think you have?) behave different here.
I found absolutely no difference there when keeping my riding style identical and I think Robert reported the same. But maybe the CV carbs (I think you have?) behave different here.
Cosky's great (free) online manual: http://cosky0.tripod.com
forum links to common technical issues
If you really like this site and you would not like to see it vanish soon, have a look there: Urgent: Future of HondaCB650.com Forum
forum links to common technical issues
If you really like this site and you would not like to see it vanish soon, have a look there: Urgent: Future of HondaCB650.com Forum
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