Hoos Racing Specialties

Shell #1 cam

Part # RB#1

Shell#1 camshaft, best all around cam for track or street. This is an exchange item.

As with all performance parts it is always good to check clearances.

$135.00 plus your old cam. Core charge if you don'thave a cam is $50.00.

RB#2 Damage Shell #1

Part# RB#2 Damaged Shell #1 cams. Only thing wrong with these is the flanges got broken during regirind process. Will not affect performance.

Part#RB#2 $85.00 exchange.

None at this time.

256 Motor Cam Chains from 70-73.

Part# 03107 $65.00

447 Motor Cam Chains 74-84

Part# 02106 (FACTORY YAMAHA) $65.00

FRONT CAM CHAIN GUIDE. New MFG.

Part #FG201 $38.00

Kibble White METAL top valve spring kit. Good for cam lift to .525.

Part#131 $189.00

Megacycle cam profiles. We like the 250-30 for our flat track 70hp motors. All profiles are $579.00(call to verify as they do change their prices). These are also exchange, send me your old stock cam.

As with all performance parts it is always good to check clearances.

Cams are $579.00 exchange for all profiles.

Core for no cam is $50.00 .

They also do the 270 and 277 with any of these profiles. $698.00 exchange. These are by far the best way to go as they do not cut your cam in half. No worries of run out as I have seen with many others cams.

277 cams are $744.00 for all profiles, exchange.

Core for no cam is $50.00 .

1 Shell Cam covers

Shell cam covers, takes the place of cam housing. Need to have a crank timed ignition with no advance at the cam. Such as the Powerdynamo(Vape) or the Electrex Work or PVL. Will not work with points or pamco.

Part# 1Shell $89.00

Picture coming soon.

Megacycle adjustable sprocket for you big twin cam.

Part# 250-SPKT $244.00 Special order, usually 8 day lead time.

Megacycle Harden Rocker Arms , Megacycle recomends these witht their cams. Comes with out adjustors)

SPECIAL ORDER ONLY

Part#250-RA $108.00 each.

Part# HRS C1 .. $23.00

Holds hub while removing retainer nut, good for hold sprokets, gears etc.

Clutch Products, nothing but the best. Barnett Disk and springs with stock Yamaha metal plates.

90-10005 Barnett fiber disk. $16.35 each

58-06045 Barnett Hd springs $23.00 (6)

341-16325-01 Metal plates $11.00 each out of stock

Clutch kit, 7 fiber, spring kit $140.25

New Needle bearing and thrust washer.

Part# 39-6505...$15.00

Clutch pressure plate mounting screws, factory Yamaha.

Part#6102 $6.50 each

12 volts generator for Yamaha XS650 output at 12V/180W DC - Replaces old alternator and regulator, Though the alternator is technically capable of running without a battery (which the stock alternator could not), your ignition will need the battery to get started.

The electric output generated during kickstart is not enough to start ignition reliably. You imperatively need a battery. -

Please note! • Does not replace points and govenor setup only alternator. • Will work with any 12 V ignition setup as long as ignition is based at camshaft level and a working battery. • Can not be used if you had installed an ignition setup directly on your original alternator. • Does not support the original safety relay that prevents starting into an already running engine. • Does not support any existing electronic tachometeer •

Part# 716949900 $360.00

Top of the line VAPE (Formally Powerdynamo) ignition. I have been using these since 2006. Been rock solid unit. The Powerdynamo Company was in business since 1999 before selling out to VAPE. They have given me the same quality service.

The unit is crankshaft timed for the most accurate timing. It has an adjustable advance unit with rev-limiting provision. No others to my knowledge has that.

Easy setup, set piston at TDC (top dead center) align marks and bolt down.

Part# 73 699 99 ignition for standard 360 motor. $707.00

Top of the line VAPE (Formally Powerdynamo) ignition. I have been selling these since 2015 or so. Been rock solid unit. The Powerdynamo Company was in business over 20+ years before selling out to VAPE. They have given me the same quality service.

The unit is crankshaft timed for the most accurate timing. It has an adjustable advance unit with rev-limiting provision. No others to my knowledge has that.

Easy setup

Part# 73 619 99 277 0 ignition for 277 motor. $695.00

We have used this in place of the PVL system after Penton racing retired. Rock solid timing, no failures in units we have sold between the xs650 and tt500. No lighting coil race only.

Part# HRS stk-465 $345.00

Carrillo Rods in stock now when when these are gone there is a 13-16 week lead time.

Part# 256LR for 256 long rods motors $785.00 (a par) . (1 set left)

Part# 05118n for 447 motors $785.00 ( a par) (4 sets left)

Shell/JE 700 piston sets, top quality forged pistons. Kits come with pistons, pins clips and rings . I have these in 447,256 and 533. Pistons are 9.5 to 1 compression ratio.

As with all performance parts it is always good to check clearances.

Part# 218358 for your 447 motor $344.00

Part# 302957 for your 256 motor $344.00

Part# 347370 for your 533 motor $344.00

Part# 20-2218 Any 700 kit, send us your cylinder and we will bead blast it and bore. $594.00

Shell/JE750 kits, I carry these in Standard 80m (3.151) , 2nd over (3.169), and 4th over (3.89) . I have these for 447 and 256 motor they are all 10.5 to 1 compression . Pistons kits come with pistons, pins, rings and clips.

As with all performance parts it is always good to check clearances.

477 motor 74-84

Part# 285495 3.151 bore $345.00

Part# 286317 3.169 bore, $345.00

Part# 285498/360817 3.189 bore, $345.00

256 motors 70-73

Part# 285499 3.151 bore, $345.00

Part# 286310 3.169 bore, $345.00

Part# 332618 3.189 bore, $345.00

Part# LA132 Sleeves 2 for $195.00

Complete kit with Sleeves, piston kit of your choice and head and base gasket.

Part# 18-2220 $591.00

Part#18-2221 comes with all of 18-2220 kit plus we bead blast, bore , deck head and fit the piston. Kit of your choice $929.00

All extra piston clips 20mm and 22mm package of 2 clips $2.50

All Twin Rings $30.00 for 1 piston set.

Standard Manley valves

Part# Price

01 std int. - $42.00 intake valve

02 std ext.- $42.00 exhaust valve

New Manley Stainless steel valves. These are 1mm over,

PART# pRICE

01 MAN . 42MM INTAKE VALVE...$42.00

02 MAN. 36MM EXHAUST VAVLE, $42.00

Standard Kibble White valves.

Part# 80-80380 Standard 41mm intake valve $75.00

Part# 80-80383 Standard 35mm exhaust valve $75.00

Kibble White valve guides standard and .001 over size.

Part# 80-80370 standard intake guide $44.00

Part# 80-80360 standard exhaust guide $44.00

Part# 80-80361 .001 over intake guide $44.00

Part# 80-80371 .001 over exhaust guide $44.00

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Part# 03107 $65.00