bassbill

Update II Old jets #135 fitted. Needles readjusted to position 1 ( they were on pos 3, from 5), and the improvement is really there. There is some backfire there though that was not there before. Any ideas. I know I should search the forums but no time indeed. I am taking the bike for a 50 Km run this afternoon to see how it operates in the open road.

Updating. New diaphragms fitted, and things seem to be a lot better, but still not perfect. I guess it's due to the smaller jets fitted in the previous situation trying to sort things out. I wii fit the normal jets tomorrow mornig and we 'll see. Bike runs o.k, just it does not rev up very happily. No misfires though... Big inprovement in general I would say.

Absolutely right about the photobucket My mechanic told me that he already managed to find a pair of diaphragms for a fair price in Greece. But I guess that your link is always gonna be usefull in the future, cause the carbs always seem to need bits & pieces. As soon as fitted and tested I 'll post again to tell you what happened. May take more than a week though cause right now I'm in vacation in the western part of Greece. With my car as you can tell, but thank God it's as close to a bike as it gets... It's a Miata.

Hi there KirriePete. I actually think that this is the case. My mechanic checked the carbs and the slide diaphragms were useless. Actually there were several splits on the membrane, and at some point someone tried to repair them with silicone, and we all know what this means. Here are some pics of the situation as is right now.

Thanks for the advice. I got the bike to a pro already, and he replied to me that the problem seems to be the carburators diaphragms. Said to me that they were damagded and the P.O. tried to repair them with silicone. What would you say about it?

Hi there After 20 non biking years I just bought a used XV 535. When i first tested the bike it had a pair of slashed open pipes fited on, and I noticed that the rear drum brake area was a bit black, obviously due to rich mixture running. The engine was running ok though when took it for a ride. It was very noisy, so I asked the dealer to fit a set of new mufflers, regular ones to reduse the noise, so he did. After that, the engine misfires badly. Looks like it is running on a single cylinder, the back one, and it won't rev up no matter if I open the throttle full open. This happens when riding. I changed the spark plugs but did not help at all. The old spark plugs came out black and dry. My guess is too rich mixture, but the problem seems more like an electrical one. With the bike standing, I can probably manage to rev it up, but it is still not responding to throttle and messes up for a few seconds before startin to rev up but very rough running anyway. Any suggestions please