drewpy

you only need to lift the cam cover off to do it. not a big job

bin done http://www.yamahaclub.com/forums/index.php?showtopic=8433

sorted, got my vote

these are the pictures of the xs450 that was on german ebay a couple of years ago i have used google translator and changed the obvious pidgen english remarks; fzr disk and GXR 4 pot caliper contactless CDI ignition system from the Suzuki GSX 400 E was reworked, which is taken directly from the crankshaft end. a new CNC milled housing/cover Yoshimura pistons with 73 mm bore new Yoshimura liners pressed in cylinder head: complete revised with shortened valve stems, worked on and polished , new valves (inlet 36 mm, exhaust 30mm) and with the 38 HP cam shaft

I'd check with yamaha, as its suprising how much stuff they still have on stock. +.25 is the next step, if you go for +1mm you have no more options, though i did see a conversion to 450cc in germany with opened valves and had to reline the barrels and cut the crancase mouths. i have the pictures and may post if anyone interested!

well done on getting this far. overboring won't provide extra power only, restore the compression and hence the original power it had. there are a set of .25 overs on ebay at the mo' and you will need to give these to the machine shop so they can match the bores. when I have mine done here in manchester, he marked each piston to bore, so i know he knows his stuff. don't forget they need honing (45' cross hatch) to retain the oil on the bore. when I got my engine finished i read a school of thought that you should use mineral oil and thrash the engine for 20 miles, this breaks in the rings to the bores. it worked for me and i don't burn any oil at all. then you drain the oil and change filter and put in "whatever you use" oil!

300 micro farad capacitor or this http://www.zeeltronic.com/page/bat_elim.php

mine always pops a little on over run, so don't worry too much about it!!

it was easy enough to check the rings when you had the head off!! the carbs spitting back will be the absence of filters as the diaphram in the carb will have trouble lifting properly so making the mix weaker.

why don't you restrict the gear change quadrant (if the're fitted on modern bikes) just fill in the teeth where you don't want gears. next Q is, what's it for?

my "bags" dropped years ago!!!

scouse is the stew scouser is the person

that's based on a manchester estate

found this whilst perusing the net http://www.motorcycle-ignition.com/motorcy...i_kit.htm#makes 235 aus though!!

I agree with Yoda, after restoring my bike, the mot tester commeted that they were binding, but after about 100 mile they free'd themselves by bedding in. ie matching the profile of the disk with the angle of the caliper

you can take the scouser out of liverpool, but you can't take liverpool out of the scouser!!

does in the haynes manual, its a universal thing with all bikes anyway. need a carb balancer though!! uses the stubs on the intakes.

maybe try resetting your valves first and see if it makes a difference, also carb misbalanced could also cause rattling.

did you check the tensioner blades for wear, when the head was off? the tensioner is automatic, did you remove the 3mm bolt holding the tensioner closed to enable it to be bolted back in place? ( in the manual)

I thought rotella was for total loss oil systems as used in wankel engines (triumph, DKW et al)

for a upholdterer try LK leighton in birmingham. maybe make a pan yourself and get them to cover it?

wow, sweet ride points are reliable if you keep up maintenance. I have fitted a contact assisted ignition which means that all the contacts do is trigger the electronics. PM me and when I'm back home I'll get out the address if you want! it does sound like the points are grounding out somewhere, are you sure that all the insulating washers are in place and in the right order? If unknown I would get new as they pitt after time and give false readings. the best way to time them is to use a dwell meter (105' off the top of my head). then i would strobe the timing off the crank. when the bike is running and the points cover is off, can you see any flashing? this means your condensor has failed and will also cause a misfire. contactless ignition is made by newtronic who went bust a few years ago. they were bought out but nothing seems to be happening at the mo'.

A couple decide to go on holiday and arrive at Terminal 5. Seeing the chaos the husband reasures his wife. "Look we've been stressed out all year we've not managed a holiday for ages as soon as we're away from here things will get better" The next day they manage to get on a plane, but without their luggage. "Still look on the bright side dear we've always wanted to see Tibet and now we're on our way" When they get to Tibet they get caught up in a protest march outside the airport and mistaken for activists they're arrested and spend three days in jail. "Come on dear keep your spirits up we've done nothing wrong, it'll all be sorted soon." Then an Embassy official manages to secure their release but only on the undestanding that they are put straight on a plane back to Blighty. Filthy, starving and dishevelled they arrive back at Heathrow. "OK dear that may have been a nightmare but when we get home you can soak in a nice hot bath and I'll take you out on the town for a show and a slap up meal. Look here's the taxi.... Driver?... Romsey Close, Farnborough please?"