Thanks for the link ! If this would be just around the corner I would be very tempted
But I am in Ukraine , the boat is in France and the motor in Scotland
I got last year a very reasonable offer from a German Yamaha dealer who offered me the F70 for 7.300,-EURO for a new motor . Need to check whether he would still stick to this price !
Originally Posted by Rogue Wave
the f70 has a lot of bang and I'm rather impressed by it. We already have one and I am buying another one for my 4.7 before April 5. Strangely enough I have a 5.4 hull with a 90 2 stroke on it. I'm happy to throw the motor on both boats and if it's feasible as a power plant I'd happily lend it to you/us for the challenge.
I think the 902 stroke is the bestest engine for the 5.4 but I think the F70 will be cheaper to run and thats important!
Stu , I know that for you there`s only one motor for the SR5.4 = the Yam 90hp and I fully agree with you that the power / weight ration is unbeatable - moreover it is extrem fun to run this engine on the SR .
Having spend many hours at sea now with the SR5.4 +90hp I also have to say that I only ONCE I was able to test the top speed which was 70km/h .
In ALL OTHER cases I was never able to use the full power of the engine - except for quick accelerations . My speed is mostly between 30 - 50km/h .
Saying that - I assume that for most cases the 70hp should be enough !
Moreover I compare this with my F100A on my Buster XL . The engine did the job not bad , was economical and quite . I tried OVER YEARS several propeller but nothing really impressed me UNTIL I put a 17" Ballistic on the motor !
Alone in the boat the motor reaches at WOT 6000rpm - it JUMPS out of the water and I can pull easily a tube with still having 5 people on board !
Nothing at all about a slow / sluggish 4 stroke motor anymore !
Coming back to the ZAR 4.7 test with the F70 .
The F70 pushed the boat up to 65km/h with full tank & crew . The total weight of the boat they wrote was 800kg .
My Searider in the current configuration has 800kg WITH trailer !
So between the ZAR & the SR is a significant difference in weight which let me think that the SR performs similar with a F70 !
So on the RI I could skip with my 90l inbuild tank each 2. gas station
taking into consideration a consumption of 0.3l/km and a range of 300km
Oh god - do not let me do something stupid and keep me away from F70 selling people !!!