Looking for a 2 stroke expert in Dunedin

[Fast Eddie]

Cheers, yep already on rgv250.co.uk and a1 aprilia forum. Not bad, fair bit of info there but a fair bit of forum whores too who just throw their two cents in.. makes for slow reading through a million posts to pick out the useful bits.

I have a photocopied workshop manual half in italian.. its helping.

Have done the static grey wire test to check exhaust valve operation. Both are lined up correctly on the first mark/fully closed position, but after grey wire test the lower cylinder is dead aligned with the second mark/half open position but the top cylinder didn't make it all the way, its just over halfway between first mark and second mark.



Cannot run engine at the moment to check full exhaust valve operation as I'm still working on the bike and have spotted a few things that need to be done anyway while its in bits.

[Henk]

When we picked up the wife's RS all the PV cables were shagged and I'm pretty sure the default position is fully open. Also they do a cycle when you start it so you should be able to hook everything up with the fairing off, start the bike and see things moving. Don't just go off the servo noise though, as I said on Michelle's the cables were all stuffed, it. Made the right noises but nothing happened, valves always fully open, was a bit low on bottom end and peaky as hell.
Great bikes though, turn you into a raving lunatic every time you ride them.

Hand starting outside the pub is always good for an unbelieving look or two

[Fast Eddie]

When we picked up the wife's RS all the PV cables were shagged and I'm pretty sure the default position is fully open. Also they do a cycle when you start it so you should be able to hook everything up with the fairing off, start the bike and see things moving. Don't just go off the servo noise though

Bikes in pieces at the moment so not starting it. But cheers. Default position should be fully closed with engine off and ignition on. Grey wire test opens them half way so you can adjust and align/sync the 2 exhaust valves.

The ball ends of my cables are worn as well so will try and replace them if it is not too expensive. I'm assuming you bought replacement cables for your wifes RS, how much were they from memory? and were they hard to source?

Prob have to leave it until after new years as I'm off on holiday for few weeks.

[Fast Eddie]

I've only skimmed this, but 2 points: plugs once fouled often don't recover even if they spark outside the engine. You can swap em over & see if the cold pipe (not firing) swaps to the other pot.

cher cher, Yea I didn't have time to buy new plugs but will swap them around and see if the cylinder that doesnt fire changes with the plugs. Then will buy new plugs.

I'v drained all the coolant out, but I'll give it a start tomorrow and see if they both fire up then kill it.

Will have to give the exhaust valves some TLC, like I mentioned in an earlier post. The bottom cylinder valve is so far working as it should. is aligned with 1st mark for fully closed and lines up with 2nd mark at half open. cannot run engine to check fully open. However the top cylinder is aligned at fully closed but does not align to the 2nd marker at half open it only makes it half way between the fully closed mark and the half open mark. Guessing I may get away with an adjustment of the cable? I'm guessing it is just not pulling it open enough?

More tomorrow..

[Henk]

We bought a bunch of cables and gaskets off a guy on here who was getting out of a lot of VJ22 stuff for a decent price. Also bought what was left of a VJ21 for some of the stuff that was attached to it so have some spare bits for the future.
In your position I'd be pulling. The barrels off for a look in any case for peace of mind and doing the power valves while I was at it. From your description of the way the bike has been treated by previous owners it seems the prudent thing to do. I hauled ours to bits just to check based on the condition of the rest of the bike, thankfully the engine is OK internally, bike just looks scruffy from being crashed and parked in the rain, suits us fine.
Weird thing is that it came into the country with about 12k on the clock and the owners between then and us put an average of about 400 ks each on it. I think the guy we bought it off was scared of it.
Once you get it going you'll love it.

[Fast Eddie]

We bought a bunch of cables and gaskets off a guy on here who was getting out of a lot of VJ22 stuff for a decent price. Also bought what was left of a VJ21 for some of the stuff that was attached to it so have some spare bits for the future.
In your position I'd be pulling. The barrels off for a look in any case for peace of mind and doing the power valves while I was at it. From your description of the way the bike has been treated by previous owners it seems the prudent thing to do. I hauled ours to bits just to check based on the condition of the rest of the bike, thankfully the engine is OK internally, bike just looks scruffy from being crashed and parked in the rain, suits us fine.
Weird thing is that it came into the country with about 12k on the clock and the owners between then and us put an average of about 400 ks each on it. I think the guy we bought it off was scared of it.
Once you get it going you'll love it.

Ah, lucky score getting those parts. I guess I'll have a slightly harder time finding the bits. Will pull the powervalves out tomorrow for a look and will no doubt rebuild them and their corrosponding parts. Will need to source the cables as well. Judging by the neglect around the rest of the bike I will continue stripping and inspecting and rebuilding its not bad work though. Has been a nice bike to work on so far, have to say my Fireblade is a lot more fustrating to work on so playing with this is fun.

I had a quick ride of it when I got it on Wednesday, it ran OK but I noticed an unusual noice that came and went so had already decided to strip it down then. Plus the next morning as I was warming it up to check powervalve operation it stopped firing one cylinder and couldn't get it to fire again so the rebuild started from there.

The more I pull it apart the more I find that needs to be done, repaired, touched up or replaced.

I am wondering how I will repair the throttle on the handle bar and both switchblock assemblies as they clamp tight on the handlebar to stop moving but the previous owners have threaded them out so they do not tighten up anymore.. its plastic too.. I was thinking of just getting slightly bigger screws/bolts and jamming them in but at the same time I'd rather repair it properly if anyone has ideas..

[Henk]

The switch blocks on ours have a mm or so of slop, I haven't worried about it and it doesn't seem to have caused any issues.

[Fast Eddie]

The switch blocks on ours have a mm or so of slop, I haven't worried about it and it doesn't seem to have caused any issues.

haha.. doesnt the throttle block twist around with you as you try to work the throttle? mine does.. and also it can slide left to right on the clip on..

I think I will pursue fixing it one way or another. may fill the holes in and redrill and use a tap to make a fresh hole for the clamping screw.. will see. its low down on the priorities for now plenty of other things to work on.

[ducatilover]

Post a pic of the thermostat housing, I might have one in my garage if it's the same as an RGV

[Henk]

Sounds like the locating pin on yours has disappeared. Ours only moves a little.

[Fast Eddie]

Post a pic of the thermostat housing, I might have one in my garage if it's the same as an RGV

Do I need a thermostat housing? I wasn't aware I did... But I like to collect spare parts anyway just incase.. got a whole spare chassis and bits for the blade which I doubt I will ever use haha.

I think pretty much all of the engine stuff will be the same as RGV250 yips

Too dark for photos now, but will be back into it tomoro morning.. you should be able to spot the thermostat housing in one of the previous posted pics if u have a keen eye.

[Fast Eddie]

Sounds like the locating pin on yours has disappeared. Ours only moves a little.

I'll pull it apart and look, havent ever really looked at the throttle assembly on a bike before. Does the locating pin sit in a little groove on the clip on or something? mine could definitely slide off the end of the clip on if the brake hose/throttle cables werent keeping it from slipping too far.

[Henk]

Pretty sure the Switch blocks have the standard pin that goes into a hole in the clip on arrangement.

[Fast Eddie]

might be able to spot thermo houseing top left.. not really though haha.

[Fast Eddie]

Pretty sure the Switch blocks have the standard pin that goes into a hole in the clip on arrangement.

true, will pull them off and have a look. both can happily slide off the ends of the bars and they both twist around the handle bar freely.. so needs to be sorted. I go to give it gas and the whole thing just moves around in my hand.

So its prob safe to assume its missing some crucial pieces.

With all these little things on the bike I am amazed it got a VTNZ Wof just last week.. Sidestand was so loose it could be wriggled around and the 2 mount screws done up/undone with the finger. and the handlebar setup surely isnt wof standard.

oh well. she'll be right!