Search found 703 matches

by wdietz186
Sun Oct 06, 2019 8:31 am
Forum: Chassis & Suspension Shop
Topic: Darmah damper rod
Replies: 3
Views: 754

Re: Darmah damper rod

It is a bottoming spring, to soften the jolt if all the travel is used up on a sharp bump. Its rate is much stiffer than the main spring.
by wdietz186
Sun Sep 22, 2019 7:21 pm
Forum: Chassis & Suspension Shop
Topic: 1980 Darmah noisy shocks
Replies: 3
Views: 563

Re: 1980 Darmah noisy shocks

You will have to take them apart and inspect the internal components. Disassembly is not too difficult and parts are available. Check your steering head bearings too, too loose will make noise over bumps
by wdietz186
Fri Sep 13, 2019 6:12 pm
Forum: Roundcase Engines > 750 GT, 750 Sport & 750 Super Sport
Topic: Removing stator from side cover
Replies: 1
Views: 575

Re: Removing stator from side cover

Heat the cover a bit, and try slamming the cover stator side down flat on a wood surface to jar it loose. Some stators are a tight fit in the cover and require coaxing to come out.
by wdietz186
Tue Jul 23, 2019 7:07 am
Forum: Engine & Transmission Shop
Topic: Dry clutch oil seal
Replies: 5
Views: 2379

Re: Dry clutch oil seal

I don't think there are a lot of Mille's out there so the reference base on the bevel dry clutches is tiny. I've never been inside one but if they are anything like the dry clutch belt models, pressing the seal in the cover is best done with a tool that engages the diameter of the seal so it doesn't...
by wdietz186
Thu May 30, 2019 6:33 am
Forum: Electrical & Gauges Shop
Topic: New ignition system: need advice!
Replies: 19
Views: 5785

Re: New ignition system: need advice!

Just a reminder, the engine turns clockwise[ as viewed from the left side of the bike] not like the belt drives or most everything else out there.
by wdietz186
Sun May 12, 2019 10:02 am
Forum: Carburettor & Fuel System Shop
Topic: 81MHR idle and run issues: slide wear?!
Replies: 11
Views: 3583

Re: 81MHR idle and run issues: slide wear?!

Did you check the resistance of the pickups? Is that what you meant for checking the continuity? You can test the resistance of the pickup coils pretty easily by checking across the two pickup leads for each cylinder, approx 220 ohm as I recall. What else you need to do is check for resistance betwe...
by wdietz186
Tue May 07, 2019 7:13 am
Forum: Engine & Transmission Shop
Topic: Clutch Grabs Violently on Fresh Engine
Replies: 9
Views: 3485

Re: Clutch Grabs Violently on Fresh Engine

You might try soaking the plates in engine oil for a couple of hours, many clutch materials need to be fully saturated to work properly.
by wdietz186
Fri May 03, 2019 7:11 pm
Forum: Carburettor & Fuel System Shop
Topic: Ball Bearing Blocked Idle Jet Airway
Replies: 5
Views: 3023

Re: Ball Bearing Blocked Idle Jet Airway

Didn't the late carbs have a jet or restrictor under the pilot jet? My memory is hazy about it but I remember there was something funky about the Late US spec. pilot circuits to limit the extent of adjustment.
by wdietz186
Thu Apr 25, 2019 7:53 am
Forum: Electrical & Gauges Shop
Topic: 900 GTS Tachometer
Replies: 5
Views: 2965

Re: 900 GTS Tachometer

Sounds like the cable needs cleaning and lubrication, cable binding in the housing. It twists when turning and unwinds suddenly. If you use light grease, lube cable except for the last 3 or so inches on the meter end as the grease can walk up the cable as it turns and foul the meter.
by wdietz186
Tue Apr 09, 2019 6:41 pm
Forum: Engine & Transmission Shop
Topic: Clutch working way to separate on a 900 square case
Replies: 5
Views: 2957

Re: Clutch working way to separate on a 900 square case

Somewhere in the dark recesses of my memory the figure of approx. 2mm seems to rattle around. Make sure the plates are completely un stuck, which will probably require it to be run/used and warm.
by wdietz186
Tue Mar 26, 2019 4:37 pm
Forum: Body, Paint & Rubber Shop
Topic: Front Tyre Clearance with a wider 18x110 tyre?
Replies: 4
Views: 4698

Re: Front Tyre Clearance with a wider 18x110 tyre?

The 110/80 is a touch too wide for the SS fender. On my old 900SS racer I had to make some external brackets that bolted to the fender from the top and I cut the mounting ears off of the fender. I did this mostly to be able to run slicks back in the day. Air-Tech make a bunch of different fenders, t...
by wdietz186
Tue Mar 19, 2019 7:27 am
Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
Topic: Primary gear alignment.
Replies: 6
Views: 5121

Re: Primary gear alignment.

The gears should be pretty well lined up, the engine gear is fixed due to being mounted on a taper. There should be a thickish washer behind the clutch basket, between the case bearing and the bearings in the basket. You might have an issue with the bearings in the basket. There should be a spacer b...
by wdietz186
Sun Mar 10, 2019 3:09 pm
Forum: Electrical & Gauges Shop
Topic: Ducati 750 GT electronic Tachometer
Replies: 2
Views: 2502

Re: Ducati 750 GT electronic Tachometer

The tach would be triggered off the neg. side of the coil. The electric tachs are known for not working however, so the question may be moot.
by wdietz186
Sat Mar 02, 2019 7:11 pm
Forum: Squarecase Early 860/900 Crossover Gearchange Engines > 860/900 GT
Topic: 75 860GT Timing Question
Replies: 14
Views: 8503

Re: 75 860GT Timing Question

On the horiz. cyl. the intake valve will be partly open when in the correct position to install. Keep turning the bevel shaft until the dots line up. A light helps if the dot on the cam gear is under the washer. I think they only line up every four revolutions.
by wdietz186
Tue Feb 19, 2019 4:19 pm
Forum: Squarecase Early 860/900 Crossover Gearchange Engines > 860/900 GT
Topic: 860GT Right Side Cover...stuck??
Replies: 10
Views: 3982

Re: 860GT Right Side Cover...stuck??

If the hex is just fully rounded, sometimes a Torx driver can be hammered into the hole so the flutes of the bit can grip the hole. I think a T25 or 30 is about the right size. Long ones are usually available at your local Harbor Freight or a decent parts store. If that proves fruitless get a good s...

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