We are delighted you have found your way to the best Jet Boaters Forum on the internet! Please consider Signing Up so that you can enjoy all the features and offers on the forum. We have members with boats from all the major manufacturers including Yamaha, Seadoo, Scarab and Chaparral. We don't email you SPAM, and the site is totally non-commercial. So what's to lose? IT IS FREE!
Membership allows you to ask questions (no matter how mundane), meet up with other jet boaters, see full images (not just thumbnails), browse the member map and qualifies you for members only discounts offered by vendors who run specials for our members only! (It also gets rid of this banner!)
I'm also curious. I don't think we know to be honest, boattest has botched the numbers in their most recent review, so that is not particularly helpful.
Not sure if this will be much help, but I bought 2 2016 Yamaha VX Deluxe jetskis with the new TR1 motors. They are fast and seem reliable. Lots of room. Easy to work on. As far as power with 2 in a boat, I think they would give you a total of about 225 hp, so probably quite adequate.
Agreed, I don't understand how we are still waiting on these figures.
This motor is also in some Artic Cats and I was extremely impressed with how it performed. However the sled motor is at 135 horsepower. Why is the boat motor less? Are the 18's getting a bump?
The Arctic Cat sled is the same as the Yamaha Viper (shared platform between the two companies). My guess is the difference in hp has to do with the operating rpm. In the snowmobile world, these engines run up close to 9000rpm, making peak hp around 8700-8900rpm. The boats don't run that high of rpm, thus the lower hp.
I did test drive a 210 and was impressed, however this is coming from a guy that has not driven a 21'or 24' with the bigger motors. I will tell you it seem to plain faster than a 19' with the normal 1.8 even though the top end speed is similar to the SX/AR 190's. They also seemed to have the torque that people were looking for, I feel at the end of the day you are only missing top end speed compared to bigger motors. Obviously I'm sure the twin 1.8's are faster planning out however I would say it's not necessary (as in my opinion the boat got up to speed at a good rate). One other thing there was only 5 of us on the boat. Keep in mind I was just test driving so I don't have any stats on my tests. I will say I loved the sound of the motors, they sounded pretty deep. This reminds me of how impressed I was with this motor on a sled during the winter months. In the end I ended up going with a AR195, mostly due to the ability to keep my boat in my garage at home. If storage was not an issue I'm sure I would of ended up with a 210. However I will add that the 21' seems huge compared to the 19', on our test drive it was a sales guy, my wife, the boys who are still young, and myself. If we boated on bigger bodies of water on a regular basis that would of influenced my decision to jump up to the 210 as well. However we only hit a few big lakes a year, keep in mind for a 19' boat I have always been impressed on how well they handle the waves.
I have the sx210 version with out the tower, the twin tr1 engines feel like that have alot of low end torque and get up on plain quickly. I had 4 adults and four teenagers onboard, 3/4 tank of fuel, coolers and was able to run 43-44 mph at wot. The only reason I know this is because I was trying to outrun a hail storm which caught us of guard. My son had his gps speedometer running on his phone. I can say pea size hail hurts at 44mph. Plenty fast enough for what I need.
I have the same problem as you do, I was thinking/wondering if the impellers are a different pitch. My port side engine also falls back and looses rpms and the starboard engine stays at a constant rpm. I'm at 480 feet elevation.
Port side 7900 and starboard side 7400, I looked today to make shire I was hitting all the throttle stops and it was. As for the fall back in rpm, I half ass fixed it with the flat head screw under the rectangle cover at the controls. It only falls back about 300 rpm now it used to drop a couple of thousand.
That is because Yamaha stopped providing differentially pitched impellers in the new twins, unfortunately. Port used to be pitched more aggressively, not anymore.
I have tried idling one engine and hammering the other, I still get the same rpm difference. If they are the same pitch you would think it would hit 7900 but it still hits 7400.
