My motorcycle mods so far

[spencer2004]

Hi, I thought that I might as well make a thread showing off the mods that I've done to my Sinnis Max and include some details on how to do them. First of all my motorcycle has the K157FMI Suzuki GN125 clone engine which is the same as the engine on the Pulse adrenaline so Pulse owners can apply most of this to their own bike.

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Here's the pod filter I fitted a while ago, I fitted a plastic bottle around it to protect it from the rain and trust me this is essential in heavy rain, last week a shortened it a bit and now it sucks in rain water and stalls the engine while idling, the protector should be at least as long as the pod filter it's self. The inlet diameter for the carb is 42mm, I'm pretty sure that this applies to the Pulse Adrenaline too and probably all other K157FMI engine bikes as well. After I fitted this I moved up from the stock 97.5 main jet to a 105, I got a minor performance increase but nothing to get excited about, it did make a nice noise while accelerating however but my new exhaust masks this now.

Fitting a pod filter requires the removal of the air filter box, for some reason this was very hard to do as I could not find any way it could slip out of the frame, it was almost like the frame was built around the air filter box. you will be left with 2 pipes that were originally attached to the air box; the crank case breather and the SIA valve inlet. Basically the crank case breather lets out gasses that sneak past the piston from the cylinder and the SAI or 'secondary air induction' valve pumps air into the exhaust gasses to burn up any un-burnt hydrocarbons to reduce emissions. These 2 remaining pipes should be left facing to the rear of the bike to prevent water or debris from entering them and secured with zip ties. I should have bought separate filters for these but I just secured a bit of old t-shirt over both of them to act as a filter.

Oh yeah and you will need to secure the battery with some zip ties or something as it originally rests on the air filter box.

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EDIT: THIS EXHAUST CAN WAS A PIECE OF SHIT DON'T BOTHER BUYING ONE!

Here is the chrome exhaust can I have just fitted, I have noticed increased acceleration and a few MPH added to the top speed. It can be found here or if the link is broken search for "UNIVERSAL SILENCER 15" TAPERED". On it's own it is far too loud, using it on it's own would probably attract police from neighbouring counties and piss off everyone within a 10 mile radius so it must be fitted with a DB killer and some baffle wool. When fitting mine I got a DB killer for a 50mm outlet which I had to shorten slightly and cut vertical lines around the widest part to fit into the can (kind of like a castle nut), I drilled a hole in the end of the can to fit the db killer on with a nut and bolt. I wrapped the db killer loosely in 1 layer of baffle wool secured with some copper wire, this greatly reduced the noise to what I assume are legal levels. The can comes with a bracket which must be drilled so secure to the existing exhaust bracket mount, this was actually a bitch to drill because the metal is such good quality, I melted about 3 drill bits. On my particular model of bike the exhaust is 1 whole system welded together so I had to cut the existing can off using an angle grinder which was easy enough, the exhaust can then just slips on and is secured with a clamp. My pipe is just under 36mm in diameter so I had to wrap a couple of layers of sticky silver foil around the end and use some high temp RTV sealant to keep it air tight. Note that (as far as I know) the exhaust pipe on the pulse adrenaline has a smaller diameter and has a slip on exhaust as standard so this particular exhaust can may not with without the use of something to bridge the gap. I moved up from a 105 to a 110 jet after fitting the exhaust, I could probably push it to a 115 but I can't be arsed to do a plug chop test to see if the air to fuel mix is right.

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Here are the LEDs I have fitted to the front and read mudguards; I have red at the back wired to the brake lights and white at the front wired directly to the battery with it's own fuse. Each set of lights are wired to their own switches so they can be turned off or on at will, the switches are illuminated when turned on which I find quite useful as I'm less likely to leave them on over night.

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