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Another af16 Spree!
Posted: Sun May 15, 2016 3:11 am
by Visceralsoup
Hey guys, just got my engine from Kevinv710 and Im pretty excited to get started. I have pretty much everything except the carb. I also have the stock elite mount. Any tips on getting this thing to fit correctly? I saw that a member was making shock and engine mounts a while back. Wondering if he still does them.
Re: Another af16 Spree!
Posted: Mon May 16, 2016 1:59 pm
by veedubh20
need to measure to cut 99mm on left side need to cut. and right side leave it alone on elite s mount. tounge mount bracket need to cut and weld.
rear shock need 310mm.
Re: Another af16 Spree!
Posted: Wed May 18, 2016 1:11 am
by Visceralsoup
Re: Another af16 Spree!
Posted: Wed May 18, 2016 1:26 am
by MrJumps
I brought an adjustable bike kickstand off ebay for 8 bucks shipped and drilled a hole in the side bar under the spalstic and bolted it in good and it works good. Build is solid, what top end are you gonna go for??
Re: Another af16 Spree!
Posted: Wed May 18, 2016 1:41 am
by Visceralsoup
MrJumps wrote:I brought an adjustable bike kickstand off ebay for 8 bucks shipped and drilled a hole in the side bar under the spalstic and bolted it in good and it works good. Build is solid, what top end are you gonna go for??
Good idea.
I went with the 90cc kit from chopchop on ebay. Came with 9:1 gears so should be quite fun.
Re: Another af16 Spree!
Posted: Wed May 18, 2016 12:13 pm
by MrJumps
Visceralsoup wrote:MrJumps wrote:I brought an adjustable bike kickstand off ebay for 8 bucks shipped and drilled a hole in the side bar under the spalstic and bolted it in good and it works good. Build is solid, what top end are you gonna go for??
Good idea.
I went with the 90cc kit from chopchop on ebay. Came with 9:1 gears so should be quite fun.
I have the same top end, your gonna love it, it gives a solid feeling. A tip for installing though, use the stubs, the stock size honda bolts only go in about 3 or 4 threads, mine tore out those first 4 so I have to be extremely carefull from now on. Another tip is when installing make sure your piston skirt is nice and smooth and dosnt hit the case.
Re: Another af16 Spree!
Posted: Wed May 18, 2016 3:41 pm
by Visceralsoup
MrJumps wrote:
I have the same top end, your gonna love it, it gives a solid feeling. A tip for installing though, use the stubs, the stock size honda bolts only go in about 3 or 4 threads, mine tore out those first 4 so I have to be extremely carefull from now on. Another tip is when installing make sure your piston skirt is nice and smooth and dosnt hit the case.
Are you talking about the head studs that come with the kit?
Re: Another af16 Spree!
Posted: Thu May 19, 2016 12:37 am
by Visceralsoup
Got the big bore kit today and got it all put together.
Nice looking parts.
Gonna pull apart the gears tomorrow and get the new set pressed and put in. Carb is coming in the mail. A few nuts and bolts and it should be ready to fire.
Re: Another af16 Spree!
Posted: Thu May 19, 2016 11:06 am
by MrJumps
Yes those head studs, take one stud out Nd goto home depot and get a grade 8 or so set of nuts for it, along with some washers. It helps even out the pressure on the head and the stronger nut wont strip.
Re: Another af16 Spree!
Posted: Thu May 19, 2016 9:53 pm
by ped
Wow. That's going to be one good-looking spree.

love the Red color.

Re: Another af16 Spree!
Posted: Fri May 20, 2016 1:57 am
by Visceralsoup
ped wrote:Wow. That's going to be one good-looking spree.

love the Red color.

Thanks! Gonna weld up the shock mount tomorrow and get it on 2 wheels!
Re: Another af16 Spree!
Posted: Fri May 20, 2016 11:37 pm
by Visceralsoup
Re: Another af16 Spree!
Posted: Wed Jun 01, 2016 1:04 pm
by veedubh20
the base yellow gasket need to boost port, some days will piston get sieze ..
9:1 gear, spree will flip over.
should have gone polini corsa bore and 7.1 gear
Re: Another af16 Spree!
Posted: Wed Jun 01, 2016 1:19 pm
by Visceralsoup
veedubh20 wrote:the base yellow gasket need to boost port, some days will piston get sieze ..
9:1 gear, spree will flip over.
should have gone polini corsa bore and 7.1 gear
Its a little late now hahaha
Also what do you mean by I need to boost port?
Re: Another af16 Spree!
Posted: Wed Jun 01, 2016 4:46 pm
by Wheelman-111
Greetings:
I believe Veedubh refers to the acres of metal on the crankcase framed by the boost port (yellow) gasket window behind the cylinder. Opening up the crankcase to the dimensions of that gasket opening adds needed transfer channel to route the fuel vapor in the crankcase up into the Business End of the cylinder on the downstroke. As it is, the tiny opening of the stock crankcase boost port can't feed much fuel into the Big Bore cylinder's port. Some believe that this deficiency leads to poor flow across the piston crown when the exhaust port first opens, with consequent hot spots and seizure. Others report having installed their Tai, Malossi Iron and MHR cylinders without modifying the crankcase opening, and have experienced uneventful results.
I think it should run just fine if you are sure to chamfer the knife-edge of the cylinder ports. Otherwise the port edges literally scrape all the oil off the piston, leaving a dry spot that gets scored and can seize.