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There been more then one factory built Yamaha with more odd shim then that come from factory. What ever it takes to get it straight

Riva spent an entire day installing and tuning the boat, factory pipe spent a day. Tnt spent less then 2hrs to install,tune and remove pipe for next person.

Tnt got the riders choice. Riva pipe had best speed by one tenth of a mph on radar Protec threatened to pull all there advertising and protested tnt pipe being in shoot out. Factory pipe in turn countered and said they pull there advertising if they didn't allow. It was quite interesting week

Psi came to the pipe shoot out in lake mead back in the 90's and they withdrew from the test after running as they didn't get the numbers, Protec, FPp, Riva, TNT, where getting.

Well if you want to do it right you need to find the problem. Being a stock hull and Eng there something wrong causing it. Wrong mounts or is the whole pump and shoe installed at the wrong angle?? When you slot thevmotor mounts to move them out you have to make sure you don't end up with mounts...

If you run an EFI system with maf sensor you can build a rcv system that is throttle position activated and reduce the amount of air shoved through the engine but you will build more intake temps as the air will travel through the SC multiple times under light throttle cruising

There was boost in your car but recirculating bov is common in daily sc production engines. But % of over drive will help the sc produce smaller volume at low rpm and higher Cfm as rpm rises as the sc turns considerably faster then engine rpm so it's not a equal CfSM gain per rpm. You have to...

So here the deal with SC vs Turbo on a two stroke. Having done a few turbo two strokes that make a very impressive HP LEVEL. 370 track hp out of a 1200cc twin. Modern electronics have made forced induction two strokes viable for power and not drink gas like a carb version. But here the...

No need to deck cyl. Just raise trans to128-129 deg she rip

That really looks like one of my old engines. 5mm rad crank with stock rods, head dome shape is def one that I cut. Motor should be setup with a .040 base gasket and 190psi comp. .045 squish, They typically made 106-114hp at 6950-7030 rpm with my stroker chamber on them. Taper bore 46's...

Tnt performance Look for our website coming out in next couple weeks. We have made big changes in last couple months. For the first time in 20+ years we have almost everything in stock. No more months of waiting. All tnt pipes are currently in stock. New pipes are 7-10 day build time...

You cannot press on the full length of the crank shaft or you will pinch the pin bores and the crank will be out of true. You have to put the crank in freezer for about an hour and heat the inner bearing race to 200 deg F with small butane crack torch. Be careful not to put any heat on bearing...

You use a standard bearing clamp to remove the bearing. Press the old bearing off after u tighten the bearing clamp up with wrench till it in seats the bearing. NOTE!!!!! Do not press the new bearing on or you may damage the crank

Thanks for the awesome cleaning. Made for great repair. If anyone has a v2 that cracked in the weld with a major failure. Please sent the pipe back to me and get it completely repaired. There about 12 chambers that where not properly welded and they fail bad. Most have already failed and been...

Is don't know. Never tried it

Meth, stand alone Ecu or as primary fuel.

I didn't read all your post. I just have had so many people tell me that I just go into auto pilot. lol. You wouldn't believe how many people told me my wave 3 wasn't gonna last more then a couple hits of bottle. 68.3mph blue water boat drags with a 6m6motor stock bore 6m stroker 6m6 cyl in...

Ok so I read this post a bit and saw where someone said to be carful your sitting on top of a bomb. Nitrous is one flammable gas. It's only cold oxidizer. So there is no bomb threat. I have nitrous on just about everything I own and have had since early 80's. My tunnel boat with outboard...

I have been working wide open for last few months. All pipes are now in stock and we can fill most orders in 2-7 days. We ship all orders on fridays every week

Here two pictures of where we drill and tap for water routing. Water goes into very bottom fitting, 80% water comes out in the new fitting in the back, last 20% water goes out the top. Change the restrictor in top to add or reduce water flow. More water out the top less the motor will rev and...