evo rules

[paul]

if you use a 82 490  engine in a earlier frame is it legal for evo (the only thing different is the extra linkage mount on the cases. but basically the same as a 81 engine?

?

[tony27]

My understanding would be no, the linkage casting means it's out of a non evo bike

[paul]

cut it off with the hack saw  I suppose

[shelpi]

after looking at the 81 and 82 engine schematics and part numbers its 99.9% the same so surely it comes under flow on rules
sorry to hijack your post rumour has it the 83/84 490 gearbox arnt strong is this true and could other gear boxs be fitted ie zabel?

[paul]

I think the flow on rule would be ok 78/79/80/81,,,,82  basicly all the same .could be like the square barrel flow on as well

[paul]

after looking at the 81 and 82 engine schematics and part numbers its 99.9% the same so surely it comes under flow on rules
sorry to hijack your post rumour has it the 83/84 490 gearbox arnt strong is this true and could other gear boxs be fitted ie zabel?

don't know sorry

[bigk]

Depends on actually using some common sense when you look at it, which does not seem to be the norm here. Common sense has gone to the grave with the dinosaur.
K

[paul]

some people use 82 barrels with different porting on 81 engines ,so if you know what to look for in the casting numbers on the side off the barrels ,were does that stand then

[Ted]

Does a 82 Maico have linkage rear suspension? If the answer is yes then 99% of us say no it's not legal to rat bits off it. However with that ludicrous decision made the other week by the eligibility scrutineer at this years Nats I would probably fit a Lamborghini motor to it. It will pass with flying colours.

[KTM47]

The 1982 Enduro 490 was still a twin shock so they are EVO legal.  Also some 1982 Enduro 490s had reed valve barrels.

[KTM47]

Does a 82 Maico have linkage rear suspension?

Yes and No the Enduro had twin shocks.

[Husky500evo]

Does a 82 Maico have linkage rear suspension? If the answer is yes then 99% of us say no it's not legal to rat bits off it. However with that ludicrous decision made the other week by the eligibility scrutineer at this years Nats I would probably fit a Lamborghini motor to it. It will pass with flying colours.

Where do you come up with your 99% figure Ted ? Your welcome to voice your own opinion, but please don't include me in your statistics, as I don't agree with you.

[shelpi]

Does a 82 Maico have linkage rear suspension? If the answer is yes then 99% of us say no it's not legal to rat bits off it. However with that ludicrous decision made the other week by the eligibility scrutineer at this years Nats I would probably fit a Lamborghini motor to it. It will pass with flying colours.

Where do you come up with your 99% figure Ted ? Your welcome to voice your own opinion, but please don't include me in your statistics, as I don't agree with you.

ahh  as  a newby wanta be I have the schematic her for the 490's 1981, 82 and 83 and did a quick comparison of the engine parts and except for the cylinder all other parts looked the same actually looking at the 82 now, the piston port cylinder was also offered the only deserning differance that I can see is the rear engine mount where the swingarm pivot bolt goes through

[Ted]

Does a 82 Maico have linkage rear suspension? If the answer is yes then 99% of us say no it's not legal to rat bits off it. However with that ludicrous decision made the other week by the eligibility scrutineer at this years Nats I would probably fit a Lamborghini motor to it. It will pass with flying colours.

Where do you come up with your 99% figure Ted ? Your welcome to voice your own opinion, but please don't include me in your statistics, as I don't agree with you.

That's why I didnt say 99.9% 

[evo550]

if you use a 82 490  engine in a earlier frame is it legal for evo (the only thing different is the extra linkage mount on the cases. but basically the same as a 81 engine?

?

cut it off with the hack saw  I suppose

Yeah sure why not, you could also fit a set of SSS Kayaba forks and grind off the caliper mount. Why not go to a CR 500 motor, take off the waterjackets and weld on some cooling fins. Hell it's the EVO class where anything's possible...