bore

Is there any big bore or stroker kits available for a gen 1 and if so are they worth it and how much and where can I find parts... I would like some more juice under me its a fun bike but it's less than impressive, I don't feel like it lives up to the stigma

Recently acquired an 96 with almost 50,000 on the clock. Doesn't run, used a carb body for my 97. Was looking in to pcw 1570 big bore kit. Still in planning stages. Anybody done this? Anything I should look for or do while it's apart? Also looking into higher revving cam shafts. Longer duration...

Good afternoon guys I was wondering if anyone has ever tried running with a 17 mm bore master and if that works okay.

Hi, I'm doing a bit of engine research and have a couple of questions regarding the Gen I and II engines. (1) Does anyone know the Gen I cylinder bore pitch? (2) My understanding is that it is the same as the Gen II bore pitch but I may be wrong... i.e. the Gen II has a bigger bore but the pitch...

Hi, I'm doing a bit of engine research and have a couple of questions regarding the Gen II engine. (1) Does anyone know the cylinder bore pitch? (2) My understanding is that it is the same as the Gen I bore pitch but I may be wrong... i.e. the Gen I has a smaller bore but the pitch is the same...

I'm thinking of changing both master cylinders on the handle bars to some newer Nissin units. I rebuilt the stock Vmax ones and one is leaking and I don't like how the powder coating came out. For the clutch MC, I assume I should stay with the bore size that the stock MC has. I have 6 piston...

does anyone know if the stock vmax carbs can be taper bored to gain more horsepower mid to top end, and if this procedure really gives you more horsepower

Hi, Is it expensive to get the 1200cc vmax engine converted to 1500cc? Or basically a just a change of pistons? Does 1500 pistons fit the stock cylinders? Is there anything else to consider if your thinking about converting 1200cc to 1500cc? Thanks!

I see you build some sweet engines on your site, do you offer a complete kit I could buy for my 85 and overhaul it completely with a 1500 big bore? do the stock rods handle this upgrade ok?

I should have my motor together and ready to fire up in the next few weeks. Starting to think about the carbs. To start with flatslide are completely out of the question. I've got a come up with a combo that'll work with this motor utilizing the stock carbs. It's already set up as sort...

so i have just over 1000 miles on my new motor. the 1260 it bad ***. but i am starting to hear a humming sound. at first i thought it could be the differential so i changed the fluid. i wasnt then i noticed it sounds like it goes with the rpms of the bike. im thinking a crank bearing.(hopping...

well i had a sneaky suspition that i had a bad cylinder so i went ahead and checked all 4. 2 were good with 160psi and less than 10% for leak down and the other 2 were 140 and 20% or so for the leak down. now i think i might as well do the 1260 big bore. what do you guys think. and i might run...

Wondering what you guys are doing about the extra pressure from the crankcase. Are you using stock breather or STG 7 set up or how are you managing excessive oil from blowing out the breather?