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egbrig Thanks for the reply I was thinking the flame arrestor could be erasing the gains from the additional porting and going back to the 140m. Keep tinkering with it

Do it . Its all personal preference make yourself comfortable I would do the same thing if i owned one. I like my left foot foreward and as wide a stance as possible thats why I had Tem build my Freak tray custom for Me its rediculously big but i love it . Just use epoxy resin it will be strong...

I have a jetting question hopefully a Tuner will chime in and share if i am in the ballpark. I run a lightly ported 701 61x/62t in my surf/freak with a single carb intake, 1 48 powerbomb , Bpipe, enhancer etc and it ran AWESOME with a 140m 127.5p 2.5ns 95g 1turn out on both screws. Changes...

Thank you.

The mid shaft is the same and I think the bearings and seals might interchange but the 3 bolt pattern is smaller and won’t work and not worth effort moving and realigning the inserts in the bulkhead.

Have you tried adding more water to that C4 chamber? It Will actually help with detonation. I was told this as I am having similar issues running a TNT V3 pipe in my proforce race boat with 160lbs compression using pump gas. I went to a 125 single main jet on the pipe and I believe my problem is...

However maybe cleaning and sealing and reinstalling that cover properly will get you back on the water. Good luck

Myself I would remove engine clean ,inspect and replace anything questionable and reassemble with new gaskets and seals. Doing in the ski may be possible but having the motor on the bench is better in the long run. Maybe find a shop manual will help . Having the bendix in your hand and examine...

Do you add a little silicone on a new oring for the grove on the cover? all the rubber grommets are in good shape and seal well,anywhere air and or water can get in. Is the starter sealed with silicone . Looks like the bendix might be falling apart as metal pieces will chew up a stator . I would...

I fixed my motor mount inserts using stainless timecerts in my carbon Freak . Had to be careful not to drill to deep and the timecerts were kinda hard to find but really happy with the results. I think they were M8x1.25x8 small ones..

I dont think the upgrade is worth it . The oem impeller works pretty well for the various uses you describe. A new intake grate and a B-pipe would be a nice improvement also upgrading the steering to the old pre 07 helps a bunch too.

I have seen issues like this before checked all of the above and it ended up being a bad negative battery connection on the starter bolt :)

No they have good top end with a stock motor and work great. Although may be better in a mag pump due to the larger hub I have never ran a hooker in a stock pump before. Your best bet would be to ask Dave at Impros if you want to spend the money he will make you happy. If you could find a good...

Nice!! Those tubbies should improve and drastically change handling in the surf . That rideplate may be ok now

Any stainless impeller is going to work alot better than that one. Find a used swirl impeller like a 9/15 hooker or equivalent or an oem 08+ impeller work great too and you will a different ski!! Your wear ring is probably ok

The suspense of what happened to this motor is bugging me? Would love to see pictures of the tops of the pistons as this one seems to show water intrusion!!! Pressure testing the cooling system is fairly easy to do and will tell you. More than likely its the exhaust manifold but could be a...

I bet if you posted some pictures of the pistons especially the tops it would be easier for the gurus to diagnose. Its hard to believe the 61x is such a reliable motor it should run WFO all day long as long as its put together right. Are you sure no water is leaking in? it will cause the motor...

Jet Maniac sells aftermarket kawi type cables for cheap and they work great on Yamaha setups. In fact they are designed to fit

I had this problem on a ported 760. kept melting the rear piston on the intake side drove me nuts , jetting, detonation etc. finally figured it out to be a leaking exhaust manifold to cylinder as the 8mm time certs were stripped and pulling out. I sent pictures to Tim at TNT of top of the...

Leaking stupid salt water