Search results

Have heard from some pretty well respected authorities on this site that the front timing chain guide for a 1975 650xs sold by MikesXS is a bad fit. Different from the rear guide which is the one tasked with adjustment, the front guide bolt holes are apparently milled incorrectly or at least...

Been through the Tech pages plus see that Hans Pahl recommends that Dirko Red paste. Never been a fan of that messy stuff and hate the colour. Is Permatex Aviation Form-A-Gasket in minimal application a safe way to go?

Wanted, looking for one cylinder piece for a 650xsB 1975. Good condition, no broken fins etc.

Ok, fall season is here and its time to restart my original engine rebuild. But before reconstruction I have always found consultation is the best method to avoid disasters. So, for those of you much more experienced than I, I am asking for the top 5 or 10 pitfalls to look for as I progress...

Some time back my ‘75 650xs started breaking down after 40 - 50 minutes riding. The coils were originals so I replaced with Mikes. Seem to run well after that but I was never on long enough rides - until yesterday. Same problem. Where should I be looking next?

Had all of my seals bagged and tagged on tear down - But this one got away from me. Reconstructing original engine on my 75 and not sure I have the right seal for the forward gear shaft (right side) as shown in pics. I THINK? its a 93102-08206, looks good but not sure. Anyone got a part number...

This is a real mind teaser. Replaced both coils with Mike's as plugs would continually foul after heat up (30 - 40 minutes riding) and cause break down. After doing the replacement, pretty straight forward, the bike started in full kickstand position but would not continue to run. Will start...

So I thinking regular B8ES NGK plugs are all that is required for my '75 1B as there is obviously no computer or electronics to be interfered with. Correct?

Just got the crank back from the shop. Balanced within .5 thou. Manual calls for 1.5 or less! Starting assembly this weekend, any tips from the experts? Shipper

Had to ride the last 10k home with vice grips in place of my clutch handle lever.

Quick question. Lots of threads about how to re-torque the head bolts/nuts on a 650XSB and most (if not all) recommend bolt/nut removal first to lubricate individually. Whats the best way to clean and lubricate? Motor oil? White grease spray? Been seeping out now for a week or so and want to...

Making pretty good progress on the rebuild - big time thanks to this forum. Finally found a new long screw for the starter motor and will be installing it to the bottom case soon. Who can tell me the torque on the 10mm bolts that hold the gear cover inside the left engine cover. Only torque not...

Generally, and in particular on surfaces like the oil filter panel, I would just use a thin film of engine oil on the gasket before torquing to spec. Lately Ive been reading a lot about cements good and bad. For instance, the plate that covers the starter motor gears appears to require more than...

While rebuilding the transmission, I took the time to replace #4 gear in the starter complex as it showed significant wear. Not having the experience of knowing how the starter gears worked prior to tear down, I thought I might follow Tech Bulletin M5-071 (attached) and replace the shaft clip...

In the past I have replaced push rod bushings and seals with no problems. This time around I am doing a full rebuild with gear shafts removed. Upon inspecting the push rod channel, it appears that the bushing has been removed on this shaft but it also appears that the whole bushing may not have...

Who can tell me how and where the oil seal #26 actually attaches in the reduction gear case? I can't see it. Almost looks like a misprint in the manual.

Just beginning my total rebuild of the original bottom end so that I am able to match serial numbers with frae on my '75 650xs that I have been riding extensively with a top notch second engine bought five years previous. (see pic). I found some excessive wear in the jaws of #5 arm and ordered...

OK all you metallurgical engineers out there, Any chance in rehabilitating this cam for use on my back-up rebuild engine? Don't want to waste time if its pooched and not warranted. Mikes has them for a pretty hefty price. Thanks,

Need to know that removal of the needle bearing holding the shifter arms can be punched out from the outside before I end up destroying my casing (first photo). In addition, is it necessary to remove the right hand shaft as well (second photo)? That phillips screw sure doesn't want to cooperate...

Just finished installing new points, removed and replace timing/advance cam for polishing and lube, static timed bike ('75 650xs) - now starts and runs better than ever - for five to twenty minutes before blowing 20 amp main fuse. Removed tank and covers searching for that illusive bare wire to...