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View Full Version : PVL Ignition for 2nd Generation 250R?


christph
03-06-2018, 08:42 PM
I'm wondering if anyone has tried a PVL ignition on a 2nd (or even 1st) generation ATC 250R? Penton Racing doesn't list one specifically for them, but I'm thinking the ATC engine is based on the CR 250 so the latter might work. Maybe for the 1980 model year, which is right before they went water cooled. Hopefully someone has done this upgrade. Thanks.
HondaRidr
03-07-2018, 02:00 AM
I have seen a 78-80 cr250 in person and I remember thinking the cylinder looked an awful lot like a foolers. So basically I support your theory that they are based on the earlier cr's haha.

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firefirefire90
03-08-2018, 03:48 AM
There once was a time where the 1981-1984 250Rs could easily have this upgrade.... I had one :)

https://i.imgur.com/tkHEZCH.jpg
christph
03-08-2018, 05:45 PM
There once was a time where the 1981-1984 250Rs could easily have this upgrade.... I had one :)

https://i.imgur.com/tkHEZCH.jpg

Is that a Motoplat?
yaegerb
03-08-2018, 06:06 PM
I am 90 % sure that is motoplat and not PVL. No rev limiter and quick way to smoke your cylinder.
firefirefire90
03-09-2018, 05:18 AM
who needs a rev limiter ;). Sorry for my mistake, PVL is basically motoplat with a cdi, instead of having the spark is dependent on speed of crank rotation, yeah?
ps2fixer
03-09-2018, 04:13 PM
I am 90 % sure that is motoplat and not PVL. No rev limiter and quick way to smoke your cylinder.

Not sure how the atv 2 strokes are normally, but for chain saws you tune the carb to the max rpm you want the engine to go (while under a load if I remember right). Most have rev limiters, but you tune them 200-300rpm under the limiter. My dad's been getting into building up chainsaws lately so heard it second hand.