bullylover

If you are in the UK then In Motion Trials is the place to go. If in the USA then Bultaco Classic are very good.

Ask In Motion Trials. Dave may still have the Comerfords records.

Try changing the gearbox oil, that may do the trick. It shouldn`t do that.

If you have a look in the Bultaco forums on this site the RAL codes are in there somewhere. There are PPG paint codes on www.bultacoclassic.com under Tech Tips.

Maybe try richening the slide needle up one notch and see what happens after that.

Having a second look that may be the coil wire which is supposed to go to the points. There should be 3 wires going to the points if the condenser is in the ignition. 1 from the coil for power, 1 from the points to the condenser and 1 from the points up to the top coil. It looks like your ignition has had the lighting coil removed so there should also be a ground or earth wire going up top as well. Usually green.

That clear coated wire looks like it could be the wire which is supposed to be black and is supposed to go up to the ignition coil under the tank. Use a multi meter on Ohms to tell you if that wire is connected on the points end. An older manual has a good wiring diagram in them. Clymer or Haynes. Graham.

Your photo is to small to see much but it has to be either the wire from the points to the condenser or the wire from the coil to the points.

Your Montesa will have a Motoplat or a Femsa Ignition on it. Buy one to suit. I can`t remember what the Montesas had on them I`m thinking Motoplat.

If you look closely at the old seal you will find it is a double lipped seal. The new ones are only a single lipped seal which is why you need two of them facing in opposite directions. The old one is about 14mm wide and the new single ones are 7mm wide.

It will be the 4 seals from In Motion you need. Insert these seals back to back so they face in different directions. I always have the spring side facing towards the out side of the seal carrier on both sides of the carrier.

Guess what idiot forgot to have a look John? I`ll be back out there early next week though.

I would check that the shaft isn`t bent and if it is okay then lay the bike over and drip some oil into where the shaft goes through the case. It may have some corrosion in there causing it to stick. That is about all I can think of without simply pulling the motor apart to find out why.

Hi jc2. I can have a look for you tomorrow. I will let you know tomorrow night. I think they did but I`m not 100% sure. Graham.

That sounds like the kickstart return spring has lost its spring. Is the kickstart returning as normal? If not you will have to install a new spring.

The kits from In Motion last a long time anyway. I have had a set in my 199B for the last 8 years and they are still good. There are needle roller kits out there. I have heard a couple of bad reports though. And a couple of good reports too. They are also expensive. Graham.

Yes they are. Ask for a sleeve for a model 92 as they are exactly the same.

My sidestand spring is a fair way off my footpeg. I may look close in that photo but it`s not.

You will be able to see how far back and down you can go with the new brackets and pegs. Don`t go lower than the bashplate though.

I have found over the years that all of the 250s run the best at 2.6mm BTDC. They are a lot smoother at this timing. So I agree with sherpa325

I have one on all of my 3 Sherpa Ts and they all work very well. Easy to get right and the D slide ones have much better pull right off the bottom.

I think your suspicion may be correct. Someone has put a Pursang head on it. Or maybe it was done to fit a decompressor on the head.

If you`re in the US then try Tim Weaver at Bultaco Classic and if you`re in the UK try Dave Renham at In Motion Trials. They might not have 198B sleeves but they may have some earlier ones. 198A or a 198.

Wow. I have had 3 Australian 159s apart and they all had nuts to hold the clutch springs in as well as a few 158s were the same. We must have been lucky over here. Mine has nuts on it.

That inner basket is the wrong one for a 159. A 159 should have nuts to hold the clutch springs in not pins. I think most of the later Sherpas all use the same clutch but I`m not sure when they changed from the pins to the nuts. But any clutch inner basket that used nuts should work.