1996 - 2000 model

Taffy said:

am i right in saying this engine started in 1996?

Click to expand...

Hi Taffy,
I have a 1997 sales brochure in front of me stating all that is NEW with the engine separating it with the 96' .

Here's the list:

NEW for 1997 (engines)

• valve guides (all models)
• camshafts (all models)
• rockerarms (all models)
• valve adjustment screws (all models)
• fully automatic decompression system, all
• freewheel mechanism (all Elduro & FX)
• counterbalancers, including intermidiate transmission on all models (I assume E-start models?)
• crankshafts on all 400 and 600 Elduro and FX models
• crankcases, all models
• oil pump/lubrication system, all
• oilfilter system, all (inlet washable, outlet replacable)
• oil drain plug
• clutch springs, all
• clutch pressure plate, all
• shift drum, all
• shift mechanism, all
• exhaust system, all (including spark arrestor for US models)
• carburettors on all 501 & 600 models

There ya go!

log

I would surmise that the 1997 -2000 motors were kissing cousins. Most notable was the addition of the oil pump and oil filter.

I would then group the 1988-1996 motors together as they did not have the oil pump and filter.

The only other stand out would be the introduction of the e-start in 95 or 96. Some say 95 1/2.

Most of all other year to year updates were minor in comparison.

I think :?

hi, indeed 1997~2000 engines are basically the same.
basically 2000 introduced new valve seat material , rockers with an offset to the lubrication hole , conical valve springs(from 1999), 2 stage ignition with a 7-8 hp difference between hi and low, hydraylic clutch, exhaust systems (arrow titanium for mx models), anodised clutch cover and waterpump cover, drilled gear selector and some minor things i miss..

new seat material introduced in 2000,
i recall it was a verylium mix or something...