331cc install: good news and bad news

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Old Oct 25, 2006 | 02:37 AM
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Default 331cc install: good news and bad news

Good news first:

My parts arrived late today and I put it all mostly back together. It went just like last time preparing all the mating surfaces with gasket remover and contact cleaner to make sure they are all mirror clean and dry. Then prepping the new cylinder with a thorough cleaning and then a light wipe of 10W40 on the cylinder wall. Prep the piston by installing the rings, then attaching the piston to the rod, using my home made ring compressor and then installing the cylinder. Then installed the engine head and torqued that down by the required amount.

Then the fun (not) started and that leads to the bad news.

Bad news: somehow the cam chain came off the lower gear, you know, the one down in the engine that is impossible to reach. I learned this as I was re-timing the cams. I had them timed about right and then decided to do one full rotation through a crank cycle when I noticed that the chain appeard to be slipping in a few places. I was like WTF? It shouldn't be doing that. Then it stopped turning the cams altogether. [:@] [sm=boosign.gif] I honestly don't know how it happened but I obviously did something wrong along the way.

Anyway, I called the shop to ask for advice and they said I can put it back on by removing the right side engine cover and that gives access to it. Whew - at least I don't have to undo the cylinder install so all that stays put. So I looked at the right side cover and the shop manual and that covers the clutch and water pump and all that. If it was just the cover to come off, then I'd try it, but looking at the exploded engine diagrams in the manual, that clutch looks like a b*tch with a zillion parts. Also, I think there's a gasket that needs to be replaced if you take off the right side and I don't have one of those. So I asked the shop if they could work me in to reinstall the cam chain and re-time it while they were in there and they said sure, bring it on down. So that's what I did - I left the chain hang and just installed the cam shafts and covers all finger tight, called my buddy w/a pickup truck and he was kind enough to give me an unplanned haul. Hopefully I can pick it up tomorrow if they have one of those gaskets in stock, if not, it will take a few more days. *sigh* I told them if they had it for me tomorrow, I would buy lunch for the whole shop.

Once I get it back, I can finish up the job but there's not much left to do, just reinstall the gas tank, carburetor, and refill the fluids.

So close ... yet so far away. [&:]
 
Old Oct 25, 2006 | 02:42 AM
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Default RE: 331cc install: good news and bad news

That sucks about the timing chain... anxious to her the results of the big bore *****...lol..... hope ya get it back soon! good luck man.
 
Old Oct 25, 2006 | 03:20 AM
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Default RE: 331cc install: good news and bad news

Brian don't worry your not the only one to drop the chain, it will be allright. I have no finger nails waiting for your writeup... Are you going with the cvk first and if so did you sort out the jetting.

Thanks man

Francis
Sanford, FL

I want a big bore!!
 
Old Oct 25, 2006 | 03:28 AM
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I think you will find that once you get that new carb tuned in it will be the biggest gain you have seen so far That will really wake up that bike
 
Old Oct 25, 2006 | 03:33 AM
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Oh, no! Brian, I'm shocked that you're actually resorting to work done by the stealership!
This just isn't like you. Is it really that hard to get the right cover off? The whole clutch assembly comes off too? Uuugh!
 
Old Oct 25, 2006 | 03:45 AM
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Default RE: 331cc install: good news and bad news

ORIGINAL: jellyfish
Brian don't worry your not the only one to drop the chain, it will be allright. I have no finger nails waiting for your writeup... Are you going with the cvk first and if so did you sort out the jetting.
While I had the bike in the driveway waiting on my buddy I decided to do a quick test fit of the FCR carb and man it was tight getting it in there. I didn't tighten it down, but it looks like it will go without any additional mods, though it is pretty close quarters in there. The FCR is a much larger carb than the CVK. The mods Jerry did to it now become more clear - the "push" side of the cable hanger was sawed off otherwise it would hit the engine valve cover and it appears the outlet barrel was replaced by a longer one to reach our intake boot on the engine side.

It's really a toss up for me on this - I so much want this bike back together and ride and then I don't want to have to take it apart again to swap carbs, I just want to ride ride ride. So I really want to install the FCR. But ... I probably will install the CVK since I know there are folks here who are considering the 331cc but would rather not the expense of the new carb if the 331cc is acceptable. While I think I know what the 331cc will do based on my experience with the 300cc, I've been surprised before so unless I change my mind at the last minute, I'll install the CVK at least to break in the new cylinder. Once I get it broke in a little, I'll try a few no clutch wheely tests to get a feel for the effects of the larger displacement.

I did rejet the CVK to deliver more fuel - I hope it's OK: #35 pilot, #130 main, N1TC needle clip on 3rd ring, fuel screw 2.0 turns out. Hopefully if I have to make any adjustments it will just be the fuel screw.

 
Old Oct 25, 2006 | 04:13 AM
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Try not to loose too much sleep tonight in anticipation. Now you probably understand what the NASA astronauts feel like a day before the launch!
 
Old Oct 25, 2006 | 04:33 AM
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ORIGINAL: Kawi Wawi

Oh, no! Brian, I'm shocked that you're actually resorting to work done by the stealership!
This just isn't like you.
I know - I feel so dirty, I'm gonna go take a shower

Is it really that hard to get the right cover off? The whole clutch assembly comes off too? Uuugh!
Well, I doubt the clutch assembly falls out when you take the cover off, but I've never had that cover off so it was an unknown and I'm not sure what else I need to take off once I'm in there. And several factors were coming into play including it was getting late and cold and would be dark soon and the lighting in my garage is not so great. And, I have to work tomorrow and have a lot of other stuff I have to do this evening and tomorrow evening, so time is becoming a fairly big constraint. And I want to have it at least for the weekend, so I hope the dealer can come through with that. And while I had them on the phone asking them what I needed to do to that fix the chain, I popped the question of how much would they do it for and the price was pretty darn reasonable considering how much time it was probably going to take me. So with the work being an unknown, darkness and cold approaching in my garage, me running out of time this evening and with work and lots of stuff to do tomorrow ... I think you get the idea. Paying to have it done wasn't my first choice, but it might be good use of my money in this circumstance.

But hey - I did install the big bore kit. I just had a sour timing chain moment in the final stages. [&:] I guess that's why I'm not a real mechanic and I should stick with my day job, huh ? [sm=guilty.gif]

Hey, come to think of it, it was about this time last time when I did my 300cc install that I poked a hole in my radiator and it cost me an extra day repairing that. Hmmm. Maybe I'm just cursed. Deej, did you do that??? Take your hex off me man! Enough is enough!
 
Old Oct 25, 2006 | 10:09 AM
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ORIGINAL: Nobrakes

Good news first:

My parts arrived late today and I put it all mostly back together. It went just like last time preparing all the mating surfaces with gasket remover and contact cleaner to make sure they are all mirror clean and dry. Then prepping the new cylinder with a thorough cleaning and then a light wipe of 10W40 on the cylinder wall. Prep the piston by installing the rings, then attaching the piston to the rod, using my home made ring compressor and then installing the cylinder. Then installed the engine head and torqued that down by the required amount.

Then the fun (not) started and that leads to the bad news.

Bad news: somehow the cam chain came off the lower gear, you know, the one down in the engine that is impossible to reach. I learned this as I was re-timing the cams. I had them timed about right and then decided to do one full rotation through a crank cycle when I noticed that the chain appeard to be slipping in a few places. I was like WTF? It shouldn't be doing that. Then it stopped turning the cams altogether. [:@] [sm=boosign.gif] I honestly don't know how it happened but I obviously did something wrong along the way.

Anyway, I called the shop to ask for advice and they said I can put it back on by removing the right side engine cover and that gives access to it. Whew - at least I don't have to undo the cylinder install so all that stays put. So I looked at the right side cover and the shop manual and that covers the clutch and water pump and all that. If it was just the cover to come off, then I'd try it, but looking at the exploded engine diagrams in the manual, that clutch looks like a b*tch with a zillion parts. Also, I think there's a gasket that needs to be replaced if you take off the right side and I don't have one of those. So I asked the shop if they could work me in to reinstall the cam chain and re-time it while they were in there and they said sure, bring it on down. So that's what I did - I left the chain hang and just installed the cam shafts and covers all finger tight, called my buddy w/a pickup truck and he was kind enough to give me an unplanned haul. Hopefully I can pick it up tomorrow if they have one of those gaskets in stock, if not, it will take a few more days. *sigh* I told them if they had it for me tomorrow, I would buy lunch for the whole shop.

Once I get it back, I can finish up the job but there's not much left to do, just reinstall the gas tank, carburetor, and refill the fluids.

So close ... yet so far away. [&:]
Heh Brian, I know it's wrong but I did have a bit of a chuckle to myself.
I've dropped the odd cam chain and caused myself all manner of extra work.

But I would have backed you to put it right without the dealerships help.
You are clearly well capable of performing any kind of mechanical work on any part of your bike.
You would have found the clutch thing a doddle.

Looking forward to the results.

cheers
 
Old Oct 25, 2006 | 10:14 AM
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Default RE: 331cc install: good news and bad news

Hey Brian,
I'm with Neil on this you would have handled it easy, shame you don't have the time. Anyway good luck you know we are ALL waiting till it's back together and running. Can't wait for the report. [8D]
 



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