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Messages - Doom64
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« on: July 17, 2018, 09:54:58 PM »
Just got a different speedo drive that's not wobbly it has helped the speed is now 5 mph off like it was before but it is still wobbly and when going quicker the needle goes up a bit fast then drops to the right speed, and the needle sometimes gets stuck at 70 ish for a second or so.
Would the length of cable affect anything?
2
« on: July 15, 2018, 10:10:07 PM »
Thanks for that.
I have got new grommets and put them in it helped a little but they are still waving.
Is the speedo gear bit meant to be wobbly, on my cb250rs it is tight is the one on the 400 meant to be tight? If it is, being wobbly that would make it wavy wouldn't it?
Also does anyone know the correct length of the cables the new ones I got the speedo is the same but the Rev counter one is a bit longer.
When going quicker the Rev counter is all over the place.
How do you make adjustments to the speedo?
3
« on: July 11, 2018, 10:06:35 PM »
Read that wrong I am just missing the steel tube and a couple of the grommets are wrong.
4
« on: July 11, 2018, 09:03:45 PM »
I seem to only have one rubber on each stud.
So I am missing a rubber and the steel tube on all the studs.
Where can I get those from?
Would these make the needle wave about that much though?
5
« on: July 11, 2018, 06:08:26 PM »
A couple of the rubbers are different, I will get some correct ones. Do the rubbers go under the washer or inside the clock? I am guessing under the washer.
What do you mean incorrect length of tube within the grommet?
Before the speedo was out by 5 mph at all speeds but now at slow speeds it's out by nearly 10mph but above 60mph it's about 5mph out.
When going above 60 the needle wobbles reads about 10mph to fast then flutters down to the correct reading then goes up again.
6
« on: July 10, 2018, 08:45:06 PM »
Hello, I just received my clocks back from being rebuild, the internals were cleaned and the dampers refilled, also had new glass and faces fitted.
I put new cables on from David silver went for a ride and the speedo and Rev counter is still wavy.
The speedo is reading a bit high and when going quicker, say I am going 60 and I accelerate the speedo will shoot up quick and go to like 80 and go back down and wave about. (clutch is not slipping) it does this more at higher speeds, it seems a bit more stable at slower speeds.
And the Rev counter is wavy and it will fluctuate a lot doing about 6k it will drop down to 5k bounce about and go back to 6k and when going quick it doesn't go up smooth.
I had a look at the speedo gear were the cable slots in with the wheel on and it is a bit wobbly, is it meant to be?
Also put a drill on the end of the cable and the needles seemed to go up smooth.
Does anyone know what else could be causing this?
Spent quite a bit of money on these, they have been wavy for ages getting a bit annoyed with them now.
7
« on: July 02, 2018, 07:21:35 PM »
Thanks for the help everyone, a lot of handy info. I have started doing near enough all the work to my bikes recently a lot of learning to do still.  About the clutch rattle I started the bike and took the oil cap off and you can hear a loud knocking from the clutch, does anyone know of anywhere you can get rubbers from apart from the ttr site?
8
« on: July 01, 2018, 06:59:05 PM »
Someone else done it before and said it was within spec.
I balanced the carbs again today, took it for a spin and it does seem a lot quiter than it was before, it's back to how it was with the standard kit in it thankfully.
I will probably strip it down again winter time and do the bottom end, this was the first engine work I have done and the bottom end is a bit trickier isn't it?
9
« on: June 29, 2018, 07:31:44 PM »
Yes I still have those and the head has been skimmed now that's the only difference.
10
« on: June 29, 2018, 06:20:50 PM »
I dyno tested it before I put the big bore kit in it.
Everything was standard apart from a shorter silencer and electronic ignition.
11
« on: June 29, 2018, 05:34:05 PM »
Oddjob, released the cam bolt when? I adjusted the cam chain after the kit was put in and the adjuster bolt was free.
When the new standard pistons were put in the cam chain and tensioner was replaced, also when I put it on the dyno it made 30hp at the rear wheel so it was running decent when it was standard.
12
« on: June 29, 2018, 12:38:21 AM »
When you first started the bike after the rebuild did it have any rattles?
When the revs drop the rattle gets worse does this point to the primary chain?
I would of replaced the primary chain while it was apart but because it was quiter before the rebuild I thought it was OK, wasn't expecting it to go loud.
Would the higher compression make a rattle louder or would it make no difference?
13
« on: June 28, 2018, 09:51:41 PM »
Julie how long have you had your 400? Has it been reliable with the big bore with lots o revs?
Will riding it with this rattle do it any damage? It is quite when riding it's just at idle it's noisy.
14
« on: June 26, 2018, 07:47:44 PM »
Thanks for the replies some handy info there.
I balanced the carbs again today it quietened a bit but is still noisy, I will wait until I do 1000 miles until I set it all up again as mentioned.
You can hear the rattle from both sides but it is louder on the left side.
The standard pistons and rings where put in new about a year ago, just wanted a bit more power so I put the 466 in.
Does anybody know where else sells the damping rubbers or other rubbers that fit?
When will it be safe to start giving it some harder acceleration? Kept it under 6000rpm for the first 250ish miles and slowly started increasing revs. now done 550ish miles.
Thanks.
15
« on: June 25, 2018, 09:34:27 PM »
Hello, I have just put a 466cc big bore kit in about 500 miles ago, the primary chain seems to be a lot noisier now for some reason.
When the standard pistons were in it it could tick over at 1200rpm and there would be a slight knock but nothing really loud, but now with the 466cc kit in when it ticks over at 1200rpm there Is a very loud clunking sound and when you bring it up to 1800rpm it quietens but you can still hear it.
Pretty sure it is the primary because when you put it in gear on the center stand and put the back break on it goes quite.
I have not touched the bottom end the only thing I did was take the sump off and wiggle the primary and the sprocket.
I have balanced the carbs but there was a couple of kinks in the hoses, so I will get some new ones and do it again.(although I used the same set when it had standard pistons and it was fine)
Does anyone have any idea as to why it would suddenly go loud when I haven't even done anything else apart from change the pistons?
Thanks in advance.
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