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Does anyone know how hot or warm a midshaft gets. On a high 7300+rpm race boat application. I just rebuilt my pump and midshaft, alignment is all good. But midshaft is getting hot to the touch. Hot enough you can touch but not hold your hand on for ten seconds. The splines are well lube...

Is there an issue with exiting the exhaust above the bondline? I was thinking of exiting in the rear where the fire ext location normally is. Mine is already glassed in there I was just wondering if anyone has ever done this. I know it may be a bit louder but when your riding the rear is...

I am looking at getting JP Flight Lace up shoes. Doe anyone know what the fit is like? Is a size 12 a size 12 or would I need an 11 or a 13?

Does a 148mm Skat pump on a B1 use a stock driveshaft???

I have a 5 mm stroker crank and ported/clearanced 62t cases I am planning on selling. Any idea what they are worth. There have not been many listed for a while.

If I have a motor jetted rich with 147.5 mains in it at 1/2 a turn, and I downsize to 145 jets what would be the reccomended starting position for the screws. Thanks

Does the following pic look like a lean condition, or a detonation condition. Both carbs were set the same and the one on the right appears lean. My setup is a 62t 5mm stroker 83mm Yamaha waveblaster with b-pipe, 190 psi, and 20 Degrees with msd enhancer. It was running okay until I dried the...

How does the msd enhancer provide better spark. Do you need to replace the coil as well for best spark? Also is it benificial to keep the stock cdi and replace the coil alone to improve spark? I just switched from TL to stock and notice the spark is very weak in comparison.

I had a post on here a week or so ago about a blaster with msd tl #4270. I have a 5mm stroker crank and could not get it to run.. Thought it was the tl because of the backfiring issue. switched to stock ignition and still backfiring. took a quick look and marked tdc for each cylinder and they...

Does anyone have any spare chips for the msd 4270? I need the rpm limit chip. I have the wires cut and nothing on the end of them. I bought this machine this way and don't know if this is why it wont run correctly. all it does is backfire and sputter. I have tried my timing at 25 to 40 deg...

Does anyone have a wiring diagram for a msd TL 4270.. It is the old style. What I'm trying to find out is, what the 2 grey wires on the lower half of the unit are for?

I have a B1 with msd TL #4270. I just put in a new post here for some new suggestions.. It is backfiring in pto side when reving out of water, yesterday I had it in the water and it would barely run. I bought this machine and it has never run well yet. It has 5mm stroker, ported cylinders and...

Is there any way to know if I have a problem with my msd tl system. I have a blaster that I just finished rebuilding. It has single trigger TL system and it is running like crap. Out of the water after warming up for a minute if you give it gas it sputters and backfires. The plugs are very...

I have a B1 with 5mm stroker motor 83mm bore. Bought used and has not run right yet. Has single pick-up msd Tl, factory pipe and twin 44s. Just rebuilt top end because of huge air leak in case, repaired pressure tested and still won't run. It pops and won't rev at all in the water with no load...

I have a yamaha 62t 5 mil stroker motor. I need pistons. I need 82.5 mm. What are the best overall price/durability. It is out of a waveblaster I have bought and have been chasing an air leak. It has msd total loss (old style) b-pipe, twin 44's. Also what are the clearances I should be running...